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Y13 Respiration

Total questions: 68

Worksheet time: 34mins

Name
Class
Date
1.
Where does glycolysis take place in cells?
a)
Cytoplasm
b)
Mitochondrion
c)
Endoplasmic Reticulum
d)
Ribosomes
2.
The first step of glycolysis results in the formation of:
a)
Glucose-6-Phosphate
b)
Fructose-6-Phosphate
c)
ATP
d)
1,6 Bis-PhosphoGlycerate
3.
Glycolysis results in the net gain of:
a)
2 ATP
b)
4 ATP
c)
4 NADH
d)
2 Acetyl CoA
4.
Glycolysis results in the total production of:
a)
2 ATP
b)
4 ATP
c)
4 NADH
d)
2 Acetyl CoA
5.
Which is not part of the net products of Glycolysis?
a)
2 ATP
b)
2 NADH
c)
2 Pyruvate
d)
2 CO2
6.
Glycolysis occurs during aerobic or anaerobic conditions.
a)
True
b)
False
7.
In the final step of glycolysis ATP is made through the process of:
a)
Substrate Level Phosphorylation
b)
Oxidative Phosphorylation
c)
Photo-Phosphorylation
d)
RedOx Reactions
8.
Which of the following is not a requirement for glycolysis?
a)
Oxygen
b)
ATP
c)
NAD+
d)
Glucose
9.
Which of the following is not a product of glycolysis?
a)
FADH2
b)
NADH
c)
ATP
d)
Pyruvate
10.

Which enzyme reduces NAD+ to NADH?

a)

Enolase

b)

Adolase

c)

Phosphoglucoisomerase

d)

Dehydrogenase

11.
Will a cell go through glycolysis even if there is no final electron acceptor for ETC?
a)
Yes
b)
No
12.
Glycolysis literally translates to:
a)
sugar-taking
b)
Glucose-making
c)
sugar-baking
d)
Glucose-breaking
13.
The number of ATP molecules produced out of Krebs Cycle is:
a)
2
b)
3
c)
4
d)
0
14.
How many FADH2 molecules are produced by 1 molecule of glucose?
a)
1
b)
2
c)
3
d)
4
15.
How many FADH2 molecules are produced by 1 turn of the Krebs Cycle?
a)
1
b)
2
c)
3
d)
4
16.
How many NADH molecules are produced by a molecule of glucose through the Krebs' Cycle?
a)
2
b)
3
c)
4
d)
6
17.
How many CO2 molecules are produced by the Krebs Cycle for a molecule of glucose?
a)
2
b)
4
c)
6
d)
3
18.
Krebs Cycle takes place in the:
a)
Cytoplasm
b)
Matrix
c)
Ribsome
d)
InterMembrane Space
19.
Folds in the mitochondrion are called:
a)
Cristae
b)
Matrix
c)
Golgi Bodies
d)
Carbuncles
20.
The inner most interior of the mitochondrion is called the:
a)
Cristae
b)
Matrix
c)
Golgi Bodies
d)
Carbuncles
21.
Krebs Cycle is part of_______________ respiration.
a)
Aerobic
b)
Anaerobic
22.
Prior to entering the Krebs Cycle, 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
23.
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 FADH2
b)
Carbon Dioxide 
c)
Acetyl-CoA
d)
Citrate
24.
The Kreb's Cycle is also known as:
a)
The Pyruvic Cycle
b)
The Respirational Cycle
c)
The Citric Acid Cycle
d)
The Berk Cycle
25.
site of the krebs cycle
a)
1
b)
2
c)
3
d)
4
26.
What is one thing that is NOT related to The Kreb's Cycle?
a)
Carbon Dioxide
b)
FAD+
c)
Pyruvates
d)
NADPH
27.

What is the final product of the Electron Transport Chain?

a)

ATP

b)

NADH

c)

FADH2

d)

ADP

28.

Which of the following gets pumped into the intermembrane space?

a)

FADH2

b)

O2

c)

H+

d)

NAD+

29.

As electrons travel down the electron transport chain, they release

a)

ADP

b)

Energy

c)

ATP

d)

Hydrogen ion

30.

Hydrogen ions are pumped from the __________ to the ___________.

a)

matrix; intermembrane space

b)

intermembrane space; matrix

c)

matrix; cytoplasm

d)

intermembrane; cytoplasm

31.

H+ move down their concentration gradient by ___________ back into the matrix.

a)

osmosis

b)

facilitated diffussion

c)

simple diffusion

d)

active transport

32.

Where does oxidative phosphorylation take place?

a)

Cytosol

b)

Matrix of mitochondria

c)

Innermembrane of mitochondria

d)

Intermembrane space of mitochondria

33.

Which of the following is not a feature of oxidative phosphorylation?A.B.C.D.

a)

Direct transfer of phosphate from a substrate molecule to ADP

b)

An electrochemical gradient across the inner mitochondrial membrane

c)

A membrane bound ATP synthase

d)

A proton motive force

34.

ATP synthesis by ATP synthase is driven by

a)

H+ movement

b)

electron movement

c)

NADH movement

d)

FADH2 movement

35.

ATP synthase synthesis ATP and release ATP into

a)

innermembrane of mitochonndria

b)

matrix of mitochondria

c)

intermembrane space of mitochondria

d)

outermembrane of mitochondria

36.
What enzyme in the ETC is responsible for generating the ATP molecules?
a)
ATPase
b)
ATP synthase
c)
Hexokinase
d)
none of the above
37.
Where does ETC occur?
a)
Mitochondrial matrix
b)
Outer mitochondrial membrane
c)
Inner mitochondrial membrane
d)
Cytosol
38.
Yeast is a(n)
a)
autotroph
b)
producer
c)
heterotroph
d)
plant
39.
What is a disadvantage of fermentation as a process? 
a)
It produces too much ATP
b)
It only produces 2 ATP
c)
It occurs in the absence of oxygen
d)
It is only for quick bursts of energy
40.
What cells in the body may undergo lactic acid fermentation during exercise? 
a)
Muscle cells
b)
Fat cells
c)
Liver cells
d)
Skin cells
41.
Glycolysis requires
a)
ATP
b)
oxygen
c)
sunlight
d)
NADP+
42.
During both alcoholic and lactic acid fermentation,
a)
NAD+ is regenerated, allowing glycolysis to continue.
b)
glucose is split into 3 pyruvic acid molecules.
c)
oxygen is required.
d)
carbon dioxide is produced.
43.

Fermentation makes ATP entirely from glycolysis. Since it takes place in the cytoplasm of the cell, the mitochondria are _____________.

a)

inactivated

b)

also involved

c)

not involved

44.
How does increasing temperature increase rate of respiration?
a)
Increases enzyme activity
b)
Increases the number of molecules involved
c)
The body carries out more respiration to try and cool down
45.

Makes 2 ATP

a)

aerobic

b)

anaerobic

c)

both

46.

An example of Anaerobic Respiration is

a)

Lactic Acid Fermentation

b)

Cellular Respiration

c)

breathing

d)

Alcoholic Fermentation

47.

Aerobic and Anaerobic respiration are exothermic reactions what does this mean

a)

They transfer energy to the environment

b)

They take in energy from the environment

48.

Which statement is true about mitochondrial DNA and ribosomes?

a)

Mitochondria do not have DNA or ribosomes - they are organelles not cells

b)

Mitochondria have circular DNA and smaller ribosomes than eukaryotic cells - they evolved from prokaryotes.

c)

Mitochondria have linear DNA and 80S ribosomes - they are eukaryotic cells

d)

Mitochondrial DNA codes for all proteins needed in the electron transport chain but they use the ribosomes on the RER of the cell

49.

What is a requirement for the accurate measurements of the rate of respiration using a respirometer?

a)

CO2 must be absorbed by water so that only O2 production is measured

b)

Temperature must be kept constant so that the volume changes are only due to O2 use

c)

Anaerobic organisms are better to use than aerobic ones as they will produce larger volume changes

d)

Warm-blooded animals are better to use than cold-blooded animals as they do not change the temperature of the container

50.

A cricket was placed in a respirometer at constant temperature for 10 minutes. The soap bubble moved along the pipette. What was measured by the movement of the soap bubble?

a)

Production of carbon dioxide

b)

Volume of excretory products

c)

Oxygen consumption

d)

Release of heat

51.
The ETC makes water.  To make this water, where do the hydrogen atoms come from?
a)
glucose
b)
pyruvate
c)
NADH and FADH2
d)
oxygen
52.
In the ETC, what is the last electron acceptor?
a)
water
b)
oxygen
c)
NAD
d)
FAD
53.
Hydrogen ions moving from the intermembrane space into the mitochondrial matrix is called
a)
chemiosmosis
b)
phosphorylation
c)
oxidation
d)
reduction
54.

What is the correct sequence of stages during glycolysis?

a)

phosphorylation > oxidation > lysis > ATP formation

b)

oxidation > phosphorylation > ATP formation > lysis

c)

phosphorylation > lysis > oxidation > ATP formation

d)

ATP formation > lysis > oxidation > phosphorylation

55.
Which statement best describes the link reaction?
a)
Pyruvate is carboxylated; acetyl co-A is formed, reducing NAD+
b)
Pyruvate is decarboxylated; acetyl co-A is formed, oxidizing NADH
c)
Pyruvate reacts with co-A, oxidizing NADH
d)
Pyruvate is decarboxylated; acetyl co-A is formed, reducing NAD+
56.

A scientist uses a respirometer to measure respiration in meal worms. State two control variables in this experiment.

a)

temperature

b)

distance the coloured liquid has moved

c)

mass of cotton wool

d)

mass of organisms

57.

A scientist uses a respirometer to measure respiration in meal worms. Explain why the coloured liquid moves in the capillary tube.

a)

Oxygen is used up and the carbon dioxide is absorbed by the soda lime, reducing pressure inside the tube

b)

Oxygen is used up and the carbon dioxide is absorbed by the soda lime, increasing pressure inside the tube

c)

Oxygen is used up and the water is absorbed by the soda lime, equalizing pressure inside the tube

d)

Carbon dioxide and water from the meal worms push the coloured liquid out of the tube

58.

State the lowest temperature at which you would test the respiration rate in small organisms. Give a reason for your choice.

a)

Not below freezing - this may harm the cells of maggots

b)

Not below freezing - this could cause their enzymes to denature

c)

Not below room temperature - this may cause injury to the maggots

d)

All temperatures are safe for testing respiration rates

59.

1.State the highest temperature at which you would test the respiration rate in small organisms. Give reasons for your choice.

a)

Not above room temperature - maggots are unlikely to experience these temperatures.

b)

Not above 40°C - their enzymes may start to denature

c)

Not above 40°C - the maggots won't respire above 25°C

60.
NADH is a ______ form of NAD+.
a)
Reduced
b)
Oxidized
c)
Catabolized
d)
Hydrolized
61.
Glycolysis is a __________ process.
a)
aerobic
b)
anaerobic
c)
aerobic and anaerobic
d)
neither aerobic nor anaerobic
62.
How is the ATP formed during glycolysis
a)
ATP is not formed in glycolysis
b)
Oxidative phosphorylation
c)
Substrate level phosphorylation
d)
ATP Synthase
63.

Which of the following molecules can be used as a substrate for cellular respiration?

a)

carbohydrates

b)

fats

c)

proteins

d)

all of the above

64.

Muscle cells in oxygen deprivation convert pyruvate to ________, and in this step gain ________.

a)

lactate; ATP

b)

alcohol; CO2

c)

alcohol; ATP

d)

lactate; NAD+

65.

Acetyl CoA has how many carbon molecules?

a)

1

b)

2

c)

3

d)

6

66.

What is the role of oxygen

a)

To oxidise acids in the krebs cycle

b)

To make pyruvate

c)

To act as the final electron acceptor in the ETC

d)

To make carbon dioxide

67.

How do you calculate RQ (respiratory quotient)?

a)

Vol of carbon dioxide / Vol of oxygen

b)

Vol of oxygen / Vol of carbon dioxide

c)

Vol of carbon dioxide - Vol of oxygen

d)

Vol of oxygen - Vol of carbon dioxide

68.

Why does the dye move towards an organism in a respirometer?

a)

Carbon dioxide produced increases the volume of gas in the respirometer

b)

Oxygen used up and Carbon dioxide absorbed increases the volume of gas in the respirometer

c)

Carbon dioxide produced decreases the volume of gas in the respirometer

d)

Oxygen used up and Carbon dioxide absorbed decreases the volume of gas in the respirometer

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