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Worksheets

Year 11 Revision 2

Total questions: 239

Worksheet time: 5hrs 35mins

Name
Class
Date
1.
The "regenerator" of the Krebs Cycle is:
a)
Oxaloacetate
b)
Acetyl-CoA
c)
Citrate
d)
α-Ketoglutarate
2.
The "regenerator" of the Krebs Cycle is:
a)
Oxaloacetate
b)
Acetyl-CoA
c)
Citrate
d)
α-Ketoglutarate
3.

How many FADH molecules are produced by 1 molecule of glucose?

a)

1

b)

2

c)

3

d)

4

4.

How many FADH molecules are produced by 1 turn of the Krebs Cycle?

a)

1

b)

2

c)

3

d)

4

5.
How many NADH molecules are produced by a molecule of glucose through the Krebs' Cycle?
a)
2
b)
3
c)
4
d)
6
6.
How many CO2 molecules are produced by the Krebs Cycle for a molecule of glucose?
a)
2
b)
4
c)
6
d)
3
7.
Krebs Cycle takes place in the:
a)
Cytoplasm
b)
Matrix
c)
Ribsome
d)
InterMembrane Space
8.
Folds in the mitochondrion are called:
a)
Cristae
b)
Matrix
c)
Golgi Bodies
d)
Carbuncles
9.

What is decarboxylation?

a)

Removal of water

b)

Removal of CO2

c)

Addition of CO2

d)

Addition of water

10.

Oxygen is an end product of Krebs Cycle

a)

True

b)

False

11.

The waste product produced during the Krebs cycle is...

a)

Oxygen

b)

Water

c)

Carbon Dioxide

d)

ATP

12.

After the Krebs Cycle only a small portion of the energy of glucose has been converted to ATP. At this point the majority of usable energy is contained in

a)

NADH and FADH

b)

Carbon Dioxide

c)

Acetyl CoA

d)

Citrate

13.
Which of the following is not an end product of the Kreb's cycle?
a)
FADH2
b)
CO2
c)
pyruvate
d)
ATP
14.

Which is the correct order of aerobic cellular respiration?

a)

glycolysis 🡪 fermentation 🡪 Krebs cycle

b)

Krebs cycle 🡪 electron transport 🡪 glycolysis

c)

glycolysis 🡪 Krebs cycle 🡪 electron transport

d)

Krebs cycle 🡪 glycolysis 🡪electron transport

15.
Which molecule enters Krebs Cycle?
a)
Pyruvate
b)
Glucose
c)
Acetyl CoA
d)
reducing powers
16.
Which process releases the most Carbon Dioxide?
a)
Chemiosmosis
b)
Krebs Cycle
c)
Electron Transport Chain
d)
Glycolysis
17.

Acetate combines with oxaloacetate to form

a)

Citrate

b)

Acetyl CoA

c)

CoEnzyme A

d)

NADH

18.

The Krebs Cycle song is

a)

CONA CONA A FA FA

b)

CONA CONA A FA NA

c)

CONA CONA A A FA

d)

CONA NA A FA NA

19.

When protons are pumped outside the matrix, across the inner membrane...

a)

water is made

b)

a concentration gradient of H+ ions (protons) is created

c)

NADH gets reduced

d)

CO2 is produced

20.

The electrons that are transferred through the electron transport chain initially belonged to

a)

NADH

b)

FADH

c)

ATP

d)

Oxygen

e)

NADH and FADH

21.

The movement of protons (H+ ions) through ATP synthase occurs from the...

a)

matrix to the intermembrane space

b)

matrix to cytoplasm

c)

intermembrane space to the matrix

d)

intermembrane space to the cytoplasm

e)

cytoplasm to the intermembrane space

22.

True or False: Water is produced as a byproduct during this stage of cell respiration.

a)

True

b)

False

23.

In the electron transport chain, Oxygen acts as...

a)

a carrier of electrons, passing electrons down the chain

b)

a reducing agent

c)

the final electron acceptor

d)

a coenzyme

24.
Where does the electron transport chain happen?
a)
Matrix
b)
Cristae
c)
Outer membrane
d)
Cytoplasm
25.

What is needed from the Krebs Cycle in order for the Electron Transport Chain to occur?

a)

ATP

b)

FADH

c)

CO2

d)

H20

26.
How many ATP are produced in the Electron Transport Chain?
a)
2
b)
30
c)
34
d)
38
27.
What is a product of the Electron Transport Chain?
a)
CO2
b)
O2
c)
C6H1206
d)
H2O
28.

How many ATP produced for each NADH that enter the electron transport chain from Kreb's cycle?

a)

1

b)

2

c)

3

d)

4

29.

How many ATP produced for each FADH that enter the electron transport chain from Kreb's cycle?

a)

1

b)

2

c)

3

d)

4

30.

The ETC makes water. To make this water, where do the hydrogen atoms come from?

a)

glucose

b)

pyruvate

c)

NADH and FADH

d)

oxygen

31.

The effect of increased levels of hydrogen ions in the intermembrane space of the mitochondria is

a)

Increase ATP production

b)

Decreased levels of oxidative phosphorylation

c)

Increased levels of water in intermembrane space

d)

Decreased levels of chemiosmosis

32.

Chemiosmosis occurs as H+ ions move through ____ in the cristae, making ATP.

a)

foldings

b)

ATP synthase

c)

protein channels

33.

ATP synthesis by ATP synthase is driven by

a)

H+ movement

b)

electron movement

c)

NADH movement

d)

FADH2 movement

34.

Which of the following processes creates the most ATP during aerobic cellular respiration?

a)

glycolysis

b)

fermentation

c)

electron transport chain

d)

Citric acid cycle

35.
The function of the plasma membrane is....
a)
to regulate what enters and leaves the cell.
b)
fight bacteria and viruses that enter the cell.
c)
provide rigid support and protection to the cell.
d)
make sure each cell can move
36.
What does "bilayer" mean?
a)
one layer
b)
two layers
c)
laminated
d)
bilateral
37.
What is embedded in the phospholipid bilayer?
a)
proteins
b)
salt
c)
water
d)
trapped animals
38.
What forms the channels and pumps in the phospholipid bilayer?
a)
carbohydrates
b)
proteins
c)
hydrophilic heads 
d)
lipids
39.
Hydrophilic means...
a)
water-loving
b)
water-fearing
c)
nonpolar
d)
lipid soluble
40.
Hydrophobic region of the cell membrane?
a)
E
b)
B
c)
C
d)
A 
41.
Hydrophilic portion of cell membrane?
a)
A
b)
C
c)
D
d)
E 
42.
What is another term for "selectively permeable"?
a)
porous
b)
completely permeable
c)
permanent
d)
semipermeable
43.
Which of the following is NOT part of the cell membrane?
a)
Lipids
b)
Carbohydrates
c)
Proteins
d)
Nucleic Acids
44.
Which of the following is responsible for getting large or charged (polar) molecules across the cell membrane?
a)
E
b)
B
c)
C
d)
D
45.
Part of the plasma membrane responsible for cell recognition... 
a)
C
b)
E
c)
B
d)
D
46.
A ______________ is composed of a phosphate and glycerol head and 2 fatty acid chain tails. 
a)
phospholipid 
b)
Carbohydrate
c)
Cholesterol 
d)
Protein 
47.
A phospholipid has 2 parts. What are they called? 
a)
Hydrophilic Head, Hydrophobic Tail 
b)
Hydrophobic Head, Hydrophilic Tail 
48.
Describes the arrangement of the cell membrane as bendable and made of many parts. 
a)
The Fluid Mosaic Model 
b)
The Major Mobility Model 
c)
The Crazy Cell Model
d)
The Maze Model
49.
___________ allow cells to recognize each other and act like ID tags. 
a)
Carbohydrates 
b)
Proteins
c)
Phospholipids 
d)
Cholesterol
50.
___________ strengthens and stabilizes the cell membrane.
a)
Carbohydrates 
b)
Proteins 
c)
Phospholipids 
d)
Cholesterol
51.
___________ form the two layers of the cell membrane. 
a)
Carbohydrates 
b)
Proteins 
c)
Phospholipids 
d)
Cholesterol
52.

In passive transport, the concentration gradient goes from..

a)

Low to low

b)

High to low

c)

Low to high

d)

High to high

53.
Osmosis is the diffusion of __________.
a)
water
b)
glucose
c)
air
d)
passive transport
54.
Passive transport requires no
a)
concentration gradients
b)
osmosis
c)
motion
d)
energy
55.
Large molecules, such as glucose, can easily pass through the cell membrane without any help...
a)
True- they pass right through
b)
False- they need a protein channel 
56.
When particles move out of a cell through facilitated diffusion, the cell ____________.
a)
Gains energy
b)
Uses energy
c)
Releases energy
d)
Does not use energy
57.
Which type of Passive Transport is being represented in this picture?
a)
Passive Diffusion
b)
Simple Diffusion
c)
Active Diffusion
d)
Facilitated Diffusion
58.
What forms the channels and pumps in the phospholipid bilayer?
a)
Carbohydrates
b)
Proteins
c)
Hydrophilic heads 
d)
Lipids
59.

Diffusion & Facilitated Diffusion are both __________ transport.

a)

Passive

b)

Active

c)

Easy

d)

Free

60.

Passive Transport is the movement of particles across the membrane from an area of [ ___ ] to an area of [ ___ ]

a)

high to low

b)

low to high

c)

low to low

d)

high to high

61.

Passive Transport uses ____ energy

a)

no

b)

a lot of

c)

a little bit of

d)

some

62.

What is the movement of particles with the concentration gradient using protein "helpers"?

a)

diffusion

b)

facilitated diffusion

c)

active transport

d)

enzymatic reactions

63.

Facilitated diffusion needs what to get particles from one side of the membrane to the other?

a)

a membrane-spanning protein

b)

a surface protein

c)

a phospholipid

d)

a carbohydrate

64.

What is a difference between diffusion and facilitated diffusion?

a)

movement of particles from [high] to [low]

b)

a protein "helper"

c)

movement of particles from [low] to [high]

d)

energy

65.

The general name for movement of substances across cell membranes without need of energy input

a)

passive transport

b)

active transport

66.

occurs when the concentration of particles is higher in one area than another.

a)

concentration gradient

b)

concentration

c)

[high] --> [low]

67.

Diffusion is the natural movement of molecules from:

a)

Areas of low concentration to areas of high concentration

b)

Areas of high concentration to areas of low concentration

c)

Cold to hot environments

d)

Gaseous to liquid environments

68.

What causes diffusion?

a)

The constant, random motion of molecules

b)

Magnetic attraction between atoms

c)

The nuclear forces that hold atoms together

d)

The tendency of atoms to form chemical bonds with one another

69.

Why is diffusion so important in biology?

a)

It's the basic power source for most types of cells

b)

It allows substances to move across cell membranes

c)

It prevents toxins from entering our bodies

d)

Without diffusion, cell division could not take place

70.

What does a 'region with high concentration' mean?

a)

An area with a SMALL number of particles

b)

An area with a LARGE number of particles

c)

An area with an UNEVEN number of particles

d)

An area with no particles

71.

Diffusion is the movement of particles from an area of _____ concentration to an area of ______ concentration

a)

High, Low

b)

Low, High

c)

Low, Low

d)

High, High

72.

An increase in temperature does what to diffusion?

a)

Speeds it up

b)

Slows it down

c)

Nothing

d)

Stops it all together

73.
What happens to particles when they are heated?
a)
They speed up and spread out
b)
They slow down and compress
c)
They stop moving
d)
They move closer together and speed up
74.
Which diagram best shows the end result of diffusion?
a)
F
b)
G
c)
H
d)
J
75.

Where is there a low concentration of dye?

a)

at the bottom of cup

b)

in the color

c)

at the top of cup

d)

no concenteraion gradient

76.
Osmosis is the movement of _____ across a membrane.
a)
food
b)
energy
c)
oxygen
d)
water
77.
During osmosis
a)
water moves from high to low concentration
b)
large or oddly shaped molecules move across a cell membrane
c)
water moves when energy is used
d)
proteins are built
78.
The diffusion of water through a semi-permeable membrane is called?
a)
Osmosis
b)
Cell wall
c)
Diffusion
d)
Respiration
79.
Where is there a low concentration of perfume?
a)
in the bottle
b)
on the hand
c)
in the room
d)
in the top
80.
What is the definition of  Selective Permeability?
a)
The movement of materials across the cell membrane that requires NO ENERGY from the cell.
b)
The movement of materials through (or across) the cell membrane
c)
The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.
d)
The movement of molecules from an area of high concentration to a area of low concentration 
81.
When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of
a)
Osmosis
b)
Diffusion
c)
Equilibrium
82.
A person would never have pure water put into their veins in a hospital because their cells would...
a)
Shrink/Dehydrate
b)
Expand
83.
A person should never drink salty water because their cells would
a)
shrink
b)
expand
84.
 In the given scenario what will happen?  An egg with a dissolved shell is placed in pure water for 48 hours.
a)
Water will move in and out of the cell equally, and the cell with neither shrink nor swell.
b)
The egg will gain water and swell.
c)
The egg will lose water and shrink.
85.
 An animal cell placed in a hypertonic (salty) solution will
a)
Stay the same
b)
Shrink- get smaller
c)
Swell- get bigger
86.
Ideally, your cells should be in a(n) _______ solution
a)
isotonic
b)
hypertonic
c)
hypotonic
d)
isometric
87.
If you looked at red blood cells under a microscope and saw the blood cells exploded, what would you say happened?
a)
The cells were placed in a hypotonic solution.
b)
the solution was isotonic.
c)
The solution was hypertonic.
88.
 If a cell containing 5% salt is placed into a glass of water with 20% salt, the water is _______ compared to the cell.
a)
hypertonic-
b)
hypotonic
c)
isotonic
89.
Both side of a selectively- permeable membrane are equal. The sides are ______.
a)
isotonic
b)
hypertonic
c)
hypotonic
90.
Where will the water go?
a)
Into the cell
b)
Out of the cell
c)
Equally in & out - it's isotonic
d)
There is no water
91.
A blood cell is placed into the jar, as seen. Where will the water go?
a)
Into the cell
b)
Out of the cell
c)
Equally in & out - it's isotonic
d)
The water is a lie
92.
What happens if someone gives you a 90% salt saline drip?
a)
Your cells will shrivel and you'll die
b)
Your cells will swell and you'll die
c)
Nah you'll be fine.
93.
How many sugar units make up disaccharides?
a)
one
b)
two
c)
three
d)
zero
94.
What molecule is this
a)
sucrose
b)
protein
c)
glucose
d)
cellulose
95.
What type of carbohydrate is this?
a)
polysaccharide
b)
disaccharide
c)
monosaccharide
d)
it isn't a carbohydrate
96.
All carbohydrate names end with which ending:
a)
ise
b)
ase
c)
ese
d)
ose
97.

Which of these are examples of carbohydrates?

a)

DNA, RNA

b)

Fats, hormones

c)

amino acids

d)

starches, glucose, cellulose

98.
The 3 categories of carbohydrates are:
a)
Monosaccharide, disaccharide, polysaccharide
b)
glucose, fructose, galatose
c)
starch, cellulose, chitin
d)
There are no categories of carbohydrates
99.
What type of carbohydrate is this?
a)
polysaccharide
b)
disaccharide
c)
monosaccharide
d)
it isn't a carbohydrate
100.
Smallest unit a biomolecule can be broken down into while still maintaining the properties.
a)
Polymer
b)
Monomer
101.

The bond between two adjacent monomer in a polysaccharide is (a)  

102.
Carbohydrates, proteins and lipid monomers are joined in reactions called...
a)
Condensation Reactions
b)
Hydrolysis Reactions
103.
Carbohydrates, proteins and lipids are broken down in reactions called...
a)
Condensation reactions
b)
Hydrolysis Reactions
104.

Select the bond that join two monosaccharides.

a)

Glycosidic

b)

Peptide

c)

Phosphodiester

d)

Hydrophobic

105.

Which polysaccharide consists of linear β 1 -> 4 linked glucose?

a)

Cellulose

b)

Chitin

c)

α - Amylose

d)

Glycogen

106.

Amylopectin has the same glucose links as ______ but has _______ branches.

a)

Cellulose; alpha (1,6)

b)

Amylose; alpha (1,4)

c)

Amylose; alpha (1,6)

d)

Glycogen; alpha (1,4)

107.

Type of reaction that joins monomers to form polymers with the removal of a molecule of water​

a)

Polymerisation

b)

Hydrolysis

c)

Condensation

d)

Exothermic

108.

Starch is a mixture of which two polysaccharides?

a)

Amylose & Amylopectin

b)

Amylopectin & Cellulose

c)

Amylose & Cellulose

d)

Cellulose & Cellulite

109.
Examples of polysaccharides are ......
a)
glucose and fructose
b)
cellulose and starch
c)
sucrose and lactose
d)
sucrose and fructose
110.
The function of carbohydrates are ........
a)
insulation
b)
store genetic information
c)
long-term energy storage
d)
 energy and structure
111.
Monomers are ......
a)
the single sub-units of macromolecules
b)
large molecules
c)
one living thing
d)
another name for carbohydrates
112.
The bond linking together of monosaccharides to form disaccharides is called......
a)
glycosidic bond
b)
peptide bond
c)
ester bond
d)
ionic bond
113.
Starch, glycogen, and cellulose are all made by linking glucose molecules together.
a)
True
b)
False
114.
What reaction is taking place?
a)
Condensation
b)
Hydrolysis
c)
Hydrogen Bonding
115.
What bond is being formed?
a)
Glycosidic bond
b)
Peptide bond
c)
Ester bond
d)
Hydrogen bond
116.
Many __________ come together to form one ______________.
a)
monomers; polymer
b)
polymers; monomer
117.

It consists of two glucoses

a)

maltose

b)

sucrose

c)

lactose

d)

cellulose

118.

Pentose found in DNA

a)

fructose

b)

lactose

c)

deoxyribose

d)

ribose

119.

Which of the following polymers are made of alpha-glucose?

a)

chitin

b)

glycogen

c)

cellulose

d)

starch

e)

amylose

120.

Hydrolysis is when...

a)

two maltoses combine to form glucose

b)

sucrose breaks down to glucose and galactose

c)

starch is broken to amylose and amylopectin

d)

a molecule of water is added to glucose

121.

Main differences between structure of cellulose and starch is/are:

a)

cellulose is made of beta-glucose, whereas starch from alpha-glucose

b)

callulose is insoluble but starch is

c)

cellulose has structural role, whereas starch is energy storage

d)

cellulose cannot be digested by human, but starch can

122.

The illustration shows:

a)

amylose

b)

amylopectin

c)

cellulose

d)

maltose

123.

Polysaccharide which is a storage of energy in plants is called:

a)

starch

b)

glucose

c)

glycogen

d)

cellulose

124.

What monomer is found in cellulose but not in starch?

a)

amylose

b)

β-glucose

c)

α-glucose

d)

amylopectin

125.

Tick the subunits of starch:

a)

amylose

b)

amylopectin

c)

cellulose

d)

lactose

e)

maltose

126.
…………. Is a branched polysaccharide while …………….. Is an unbranched polysaccharide
a)
amylose, glycogen
b)
amylopectin, cellulose
c)
cellulose, amylose
d)
glycogen, amylopectin
127.

The diagram shows part of a molecule of a carbohydrate formed by glucose. What is the name of the molecule?

a)

amylose

b)

cellulose

c)

glycogen

d)

starch

128.
which of the following describes the structure of amylopectin
a)
a branched chain with 1,2 and 1,4 glycosidic bonds
b)
a branched chain with 1,4 and 1,6 glycosidic bonds
c)
an unbranched chain with only 1,4 glycosidic bonds
d)
an unbranched chain with 1,4 and 1,6 glycosidic bonds
129.

Triglycerides are types of

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acid

e)

none of them

130.

One trigyceride molecule is made up of

a)

1 fatty acid + 1 glycerol

b)

2 fatty acids + 1 glycerol

c)

3 fatty acids + 1 glycerol

d)

1 fatty acid + 2 glycerol

e)

1 fatty acid + 3 glycerol

131.

What is the label 1?

a)

phosphate

b)

hydrophobic tail

c)

glycerol

d)

hydrophobic head

132.
This picture shows what type of lipid?
a)
unsaturated fat
b)
wax
c)
saturated fat
d)
steroid
133.
A "kinky structure" due to the double bonds between carbon atoms creates a lipid known as what?
a)
saturated fat
b)
wax
c)
steroid
d)
unsaturated fat
134.
What type of lipid is this?
a)
steroid
b)
cholesterol
c)
phospholipid
d)
triglyceride
135.
In the phospholipid, the polar head is considered what type of structure?
a)
hydrophobic
b)
insoluble
c)
hydrophilic
136.

Which diagram is a triglyceride?

a)
b)
c)
d)
137.

How many water molecules would be required to hydrolyse a triglyceride?

a)

One

b)

Two

c)

Three

d)

None

138.

What type of bond is being broken when a triglyceride is hydrolysed?

a)

glycosidic

b)

peptide

c)

ester

d)

phosphodiester

139.

Which macromolecule has 2 fatty acids attached to the glycerol?

a)

Monosaccharide

b)

Steroid

c)

Polysaccharide

d)

Triglyceride

e)

Phospholipid

140.
Which polysaccharide stores excess glucose in animals (in its liver)?
a)
chitin
b)
glycogen
c)
cellulose
d)
starch
e)
triglycerides
141.
Which polysaccharide stores excess glucose in plants?
a)
chitin
b)
glycogen
c)
cellulose
d)
starch
e)
triglycerides
142.
Which polysaccharide is the main component of plant cell walls?
a)
chitin
b)
glycogen
c)
cellulose
d)
starch
e)
triglycerides
143.

Glycolysis results in the net gain of:

a)

2 ATP

b)

4 ATP

c)

1 ATP

d)

6 ATP

144.

Which is not part of the net products of Glycolysis?

a)

2 ATP

b)

2 pyruvate

c)

2 CO2

145.
Glycolysis occurs during aerobic or anaerobic conditions.
a)
True
b)
False
146.

Which of the following is not a requirement for glycolysis?

a)

Oxygen

b)

ATP

c)

NAD

d)

Glucose

147.

Glycolysis is the second stage of aerobic respiration.

a)

True

b)

False

148.

Glycolysis requires oxygen

a)

True

b)

False

149.

Glycolysis DOES NOT need ATP to occur.

a)

True

b)

False

150.

At the END of Glycolysis, Glucose is broken down to 2 molecules of what?

a)

pyruvate

b)

lactic acid

c)

hexose phosphate

d)

ATP

151.

The first step of glycolysis results in the formation of:

a)

Hexose Phosphate

b)

Triose Phosphate

c)

ATP

d)

Pyruvate

152.
The first step in getting energy in the cell by breaking down glucose is known as
a)
the Krebs cycle
b)
electron transport
c)
fermentation
d)
glycolysis
153.
Glycolysis uses: ________.
a)
2 ATP
b)
4 ATP
c)
6 ATP
d)
8 ATP
154.
What is the function of ATP in living things?
a)
provides energy for cells
b)
stores genetic information
c)
provides structure in the nucleus
155.
Which structures shown in the Figure make up the ADP molecule?
a)
A and B
b)
A, B and C
c)
A, B, C, and D
d)
C and D
156.
What does the "TP" in ATP stand for?
a)
2 phosphates
b)
tri (3) phosphates
c)
Two proteins
d)
tri (3) proteins
157.
Which bond of the ATP molecule is broken in order to release energy?
a)
A
b)
B
c)
C
d)
D
158.
Where is the energy stored in ATP molecules
a)
In the Ribose Sugar
b)
In the Adenine group
c)
In the Phosphate bonds
d)
In the Bank
159.
Energy is released from ATP when
a)
a phosphate group is added
b)
adenine bonds to ribose
c)
ATP is exposed to sunlight
d)
a phosphate group is removed
160.

Hexose phosphate is broken down into

a)

Pyruvate

b)

Glucose

c)

Triose Phosphate

d)

ATP

161.
The inner most interior of the mitochondrion is called the:
a)
Cristae
b)
Matrix
c)
Golgi Bodies
d)
Carbuncles
162.

In the Link Reaction, each pyruvate molecule loses electrons, hydrogen ions, and a carbon, forming an energy-rich molecule of

a)

Acetyl CoA

b)

Citrate

c)

Oxaloacetate

d)

Malate

163.

In the Link Reaction, each pyruvate molecule loses electrons, hydrogen ions, and a carbon, forming an energy-rich molecule of

a)

Acetyl CoA

b)

Citrate

c)

Oxaloacetate

d)

Malate

164.

The CO2 that is produced immediately before the Krebs cycle comes from

a)

the removal of a C atom from glucose

b)

the addition of a C atom to glucose

c)

the removal of one carbon atom and 2 oxygen atoms from a pyruvate

d)

the addition of one carbon atom and 2 oxygen atoms to a pyruvate

165.

The link reaction takes place in the

a)

Cytoplasm

b)

Cristae

c)

Matrix

d)

D722

166.

The final products of the link reaction are:

a)

1 ATP, 1 Acetyl CoA, 1 NADH

b)

1 Acetyl CoA, 1 NADH, 1 CO2

c)

1 Pyruvate, 1 Acetyl CoA, 1 NADH, 1 CO2

d)

1 ATP, 1 Acetyl CoA, 1 NAD

167.

In the link reaction, the removal of CO2 from pyruvate makes

a)

NADH

b)

Glucose

c)

Acetate

d)

Acetyl CoA

168.

Acetate + CoA =

a)

Pyruvate

b)

CO2

c)

Acetate CoA

d)

Acetyl CoA

169.
What are the parts of the ATP molecule?
a)
adenine, thylakoids, stroma
b)
stroma, grana, chlorophyll
c)
adenine, ribose, phosphate groups
d)
NADH, NAHPH, FADH
170.

How many bonds does carbon make?

a)

1

b)

2

c)

3

d)

4

171.

What does the prefix penta mean?

a)

1

b)

3

c)

4

d)

5

172.

What element is life on earth based on?

a)

Carbon

b)

Hydrogen

c)

Oxygen

d)

Nitrogen

173.

Carbon atoms readily form bonds with other carbon atoms. This allows a sequence of carbon atoms of different lengths to be built up. These form a ? along which other atoms can be attached.

(a)  

174.

What does 'poly' mean?

a)

Many

b)

It's a nice girl's name

c)

Few

175.

Carbon can form single, double or triple bonds with other carbon atoms. It has ? electrons to share, so each carbon can form up to four bonds.

(a)  

176.

What is the symbol for carbon

a)

C

b)

Ca

c)

Car

177.

What three different types of structure can carbon make?

a)

Straight

b)

Branched

c)

Ring

d)

Coiled

178.

How many bonds are between these two carbon atoms?

a)

1

b)

2

c)

3

d)

4

179.

Each cell requires an energy source. In plants, this is ?. In animals, this is ?.

a)

Light, chemical

b)

Chemical, chemical

c)

Light, light

d)

Chemical, light

180.

Definition of a monomer.

a)

One of many small molecules that combine to form a larger one

b)

Large molecule made up of small repeating units

c)

Small molecule made up of small repeating units

d)

One of many large molecules that combine to form a larger one

181.

Monomer of proteins

a)

Monosaccharides

b)

Amino acids

c)

Nucleotides

d)

Glycerol

182.

Polymer of nucleic acids

a)

RNA

b)

DNA

c)

Polypeptides

d)

Polysaccharides

183.

Reaction that occurs when monomers combine to form polymers.

a)

Condensation

b)

Combination synthesis

c)

Hydrolysis

d)

Cut and paste

184.

Reaction that occurs when polymers are broken down into monomers.

a)

Condensation

b)

Combination synthesis

c)

Hydrolysis

d)

Snipping reaction

185.

Another word for dehydration synthesis reactions

(a)  

186.

Condensation reactions remove ?.

(a)  

187.

Biological molecule made of either monosaccharides or polysaccharides.

a)

Proteins

b)

Lipids

c)

Carbohydrates

d)

Nucleic acids

188.

Large polymers are also known as ?.

(a)  

189.

Do you love biochemistry?

a)

Yes. It gives me life.

b)

Ummm. No.

190.
How many sugar units make up disaccharides?
a)
one
b)
two
c)
three
d)
zero
191.
What molecule is this
a)
sucrose
b)
protein
c)
glucose
d)
cellulose
192.
What type of carbohydrate is this?
a)
polysaccharide
b)
disaccharide
c)
monosaccharide
d)
it isn't a carbohydrate
193.
All carbohydrate names end with which ending:
a)
ise
b)
ase
c)
ese
d)
ose
194.

Which of these are examples of carbohydrates?

a)

DNA, RNA

b)

Fats, hormones

c)

amino acids

d)

starches, glucose, cellulose

195.
The 3 categories of carbohydrates are:
a)
Monosaccharide, disaccharide, polysaccharide
b)
glucose, fructose, galatose
c)
starch, cellulose, chitin
d)
There are no categories of carbohydrates
196.
What type of carbohydrate is this?
a)
polysaccharide
b)
disaccharide
c)
monosaccharide
d)
it isn't a carbohydrate
197.
Smallest unit a biomolecule can be broken down into while still maintaining the properties.
a)
Polymer
b)
Monomer
198.

The bond between two adjacent monomer in a polysaccharide is (a)  

199.
Carbohydrates, proteins and lipid monomers are joined in reactions called...
a)
Condensation Reactions
b)
Hydrolysis Reactions
200.
Carbohydrates, proteins and lipids are broken down in reactions called...
a)
Condensation reactions
b)
Hydrolysis Reactions
201.

Select the bond that join two monosaccharides.

a)

Glycosidic

b)

Peptide

c)

Phosphodiester

d)

Hydrophobic

202.

Which polysaccharide consists of linear β 1 -> 4 linked glucose?

a)

Cellulose

b)

Chitin

c)

α - Amylose

d)

Glycogen

203.

Amylopectin has the same glucose links as ______ but has _______ branches.

a)

Cellulose; alpha (1,6)

b)

Amylose; alpha (1,4)

c)

Amylose; alpha (1,6)

d)

Glycogen; alpha (1,4)

204.

Type of reaction that joins monomers to form polymers with the removal of a molecule of water​

a)

Polymerisation

b)

Hydrolysis

c)

Condensation

d)

Exothermic

205.

Starch is a mixture of which two polysaccharides?

a)

Amylose & Amylopectin

b)

Amylopectin & Cellulose

c)

Amylose & Cellulose

d)

Cellulose & Cellulite

206.
Examples of polysaccharides are ......
a)
glucose and fructose
b)
cellulose and starch
c)
sucrose and lactose
d)
sucrose and fructose
207.
The function of carbohydrates are ........
a)
insulation
b)
store genetic information
c)
long-term energy storage
d)
 energy and structure
208.
Monomers are ......
a)
the single sub-units of macromolecules
b)
large molecules
c)
one living thing
d)
another name for carbohydrates
209.
The bond linking together of monosaccharides to form disaccharides is called......
a)
glycosidic bond
b)
peptide bond
c)
ester bond
d)
ionic bond
210.
Starch, glycogen, and cellulose are all made by linking glucose molecules together.
a)
True
b)
False
211.
What reaction is taking place?
a)
Condensation
b)
Hydrolysis
c)
Hydrogen Bonding
212.
What bond is being formed?
a)
Glycosidic bond
b)
Peptide bond
c)
Ester bond
d)
Hydrogen bond
213.
Many __________ come together to form one ______________.
a)
monomers; polymer
b)
polymers; monomer
214.

It consists of two glucoses

a)

maltose

b)

sucrose

c)

lactose

d)

cellulose

215.

Pentose found in DNA

a)

fructose

b)

lactose

c)

deoxyribose

d)

ribose

216.

Which of the following polymers are made of alpha-glucose?

a)

chitin

b)

glycogen

c)

cellulose

d)

starch

e)

amylose

217.

Hydrolysis is when...

a)

two maltoses combine to form glucose

b)

sucrose breaks down to glucose and galactose

c)

starch is broken to amylose and amylopectin

d)

a molecule of water is added to glucose

218.

Main differences between structure of cellulose and starch is/are:

a)

cellulose is made of beta-glucose, whereas starch from alpha-glucose

b)

callulose is insoluble but starch is

c)

cellulose has structural role, whereas starch is energy storage

d)

cellulose cannot be digested by human, but starch can

219.

The illustration shows:

a)

amylose

b)

amylopectin

c)

cellulose

d)

maltose

220.

Polysaccharide which is a storage of energy in plants is called:

a)

starch

b)

glucose

c)

glycogen

d)

cellulose

221.

What monomer is found in cellulose but not in starch?

a)

amylose

b)

β-glucose

c)

α-glucose

d)

amylopectin

222.

Tick the subunits of starch:

a)

amylose

b)

amylopectin

c)

cellulose

d)

lactose

e)

maltose

223.
…………. Is a branched polysaccharide while …………….. Is an unbranched polysaccharide
a)
amylose, glycogen
b)
amylopectin, cellulose
c)
cellulose, amylose
d)
glycogen, amylopectin
224.

The diagram shows part of a molecule of a carbohydrate formed by glucose. What is the name of the molecule?

a)

amylose

b)

cellulose

c)

glycogen

d)

starch

225.
which of the following describes the structure of amylopectin
a)
a branched chain with 1,2 and 1,4 glycosidic bonds
b)
a branched chain with 1,4 and 1,6 glycosidic bonds
c)
an unbranched chain with only 1,4 glycosidic bonds
d)
an unbranched chain with 1,4 and 1,6 glycosidic bonds
226.

Triglycerides are types of

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acid

e)

none of them

227.

One trigyceride molecule is made up of

a)

1 fatty acid + 1 glycerol

b)

2 fatty acids + 1 glycerol

c)

3 fatty acids + 1 glycerol

d)

1 fatty acid + 2 glycerol

e)

1 fatty acid + 3 glycerol

228.

What is the label 1?

a)

phosphate

b)

hydrophobic tail

c)

glycerol

d)

hydrophobic head

229.
This picture shows what type of lipid?
a)
unsaturated fat
b)
wax
c)
saturated fat
d)
steroid
230.
A "kinky structure" due to the double bonds between carbon atoms creates a lipid known as what?
a)
saturated fat
b)
wax
c)
steroid
d)
unsaturated fat
231.
What type of lipid is this?
a)
steroid
b)
cholesterol
c)
phospholipid
d)
triglyceride
232.
In the phospholipid, the polar head is considered what type of structure?
a)
hydrophobic
b)
insoluble
c)
hydrophilic
233.

Which diagram is a triglyceride?

a)
b)
c)
d)
234.

How many water molecules would be required to hydrolyse a triglyceride?

a)

One

b)

Two

c)

Three

d)

None

235.

What type of bond is being broken when a triglyceride is hydrolysed?

a)

glycosidic

b)

peptide

c)

ester

d)

phosphodiester

236.

Which macromolecule has 2 fatty acids attached to the glycerol?

a)

Monosaccharide

b)

Steroid

c)

Polysaccharide

d)

Triglyceride

e)

Phospholipid

237.
Which polysaccharide stores excess glucose in animals (in its liver)?
a)
chitin
b)
glycogen
c)
cellulose
d)
starch
e)
triglycerides
238.
Which polysaccharide stores excess glucose in plants?
a)
chitin
b)
glycogen
c)
cellulose
d)
starch
e)
triglycerides
239.
Which polysaccharide is the main component of plant cell walls?
a)
chitin
b)
glycogen
c)
cellulose
d)
starch
e)
triglycerides

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