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SB1 Test review

Total questions: 75

Worksheet time: 1hrs 7mins

Name
Class
Date
1.

A carbohydrate is a macromolecule that is used to...

a)

give cells/systems energy.

b)

build cell parts.

c)

give cells/systems long term energy storage.

d)

help cells with chemical processes.

2.

When reading the ingredients on a nutrition facts label carbohydrates are written as a type of

a)

food additive

b)

enzyme

c)

sugar

d)

protein

3.

Example(s) of Lipids are...

a)

Sugar

b)

Olive Oil

c)

Butter

d)

Bread

4.

A lipid is a macromolecule that is used to...

a)

give cells/systems energy.

b)

build cell parts.

c)

give cells/systems long term energy storage.

d)

help cells with chemical processes.

5.
Like complex carbohydrates, proteins are macromolecules that serve many functions and can be chemically broken down and restructured. Both proteins and complex carbohydrates are which of the following?
a)
 polymers of smaller subunits
b)
sequence of sugars
c)
lipids of large molecules
d)
nucleotides of DNA
6.
The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements? 
a)
Enzymes function best at a specific temperature.
b)
The body needs to be warm to prevent hypothermia.
c)
The body is kept relatively warm to prevent too much enzyme action. 
d)
There is no connection between the two statements. 
7.
A sugar, a phosphate group, and a nitrogen base form the building blocks of which organic compound?
a)
carbohydrates
b)
lipids
c)
nucleic acids
d)
proteins
8.
Fats, oils and cholesterol are all types of what?
a)
cell membranes
b)
hormones
hormones
c)
lipids
d)
fatty acids
9.
You are analyzing a compound in the laboratory. You find that it is made up of carbon, hydrogen, and oxygen in a ratio of two hydrogen atoms for each carbon atom. How will you classify the compound?
a)
lipid
b)
protein
c)
carbohydrate
d)
nucleic acid
10.
What is the function of macromolecule subunit below?
a)
energy
b)
catalyst
c)
stores genetic information
d)
composes the majority of the cell membrane
11.
 In living organisms, lipids function mainly as:
a)
Sources of stored energy and transmitters of genetic information
b)
Sources of stored energy and components of cellular membranes
c)
Transmitters of genetic information and catalysts of chemical reactions
d)
Catalysts of chemical reactions and components of cellular membranes
12.
Like complex carbohydrates, proteins are macromolecules that serve many functions and can be chemically broken down and restructured. Both proteins and complex carbohydrates are which of the following?
a)
 polymers of smaller subunits
b)
sequence of sugars
c)
lipids of large molecules
d)
nucleotides of DNA
13.
In a chemical reaction, a reactant binds to an enzyme at a region known as the
a)
catalyst.
b)
product.
c)
substrate.
d)
active site. 
14.
Which of the following is an INCORRECT match of the carbohydrate with its function?
a)
sugar transport in plants--disaccharides
b)
energy storage in plants--starches
c)
energy storage in plants--lactose
d)
sugar transport in humans--glucose
15.
The diagram shows the structure of an amino acid. Which type of molecule is formed from amino acids?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
16.
Which of the following is an INCORRECT match of the carbohydrate with its function?
a)
sugar transport in plants--disaccharides
b)
energy storage in plants--starches
c)
energy storage in plants--lactose
d)
sugar transport in humans--glucose
17.
The "lock and key hypothesis" attempts to explain the mechanism of?
a)
Vacuole formation
b)
Pinocytosis
c)
Sharing of electrons
d)
Enzyme are specific to a substrate
18.
Which factor denatures a enzyme?
a)
Excessive heat
b)
Nothing can
c)
Exposure to light
d)
Exposure to bacteria
19.

Features of plant cells that clearly make them different from animal cells are -

a)

larger and fewer chromosomes.

b)

rigid cell wall and chloroplasts.

c)

more cytoplasm and smaller vacuoles.

d)

changing size and indefinite shape.

20.

Features of plant cells that clearly make them different from animal cells are -

a)

larger and fewer chromosomes.

b)

rigid cell wall and chloroplasts.

c)

more cytoplasm and smaller vacuoles.

d)

changing size and indefinite shape.

21.

Based upon what you just learned about the chloroplast and mitochondria, which do you believe is more important?

a)

Mitochondria because it actually makes the ATP (energy we can use).

b)

Chloroplast because it gets the energy from the sun (energy we can't use)

c)

Both are equally important because the chloroplast captures energy we can't use and sends it to the mitochondria to make ATP which is energy we can use.

22.

True or False, the nucleus of the cell holds DNA.

a)

True

b)

False

23.

True or false, the mitochondria is found ONLY in animal cells.

a)

True

b)

False

24.
To control what enters or leaves the cell is a function of _________.
a)
Cell Wall
b)
Cell Membrane
c)
Nucleus
d)
Mitochondria
25.
To convert the energy of glucose into  the  usable form of ATP is a function of _________.
a)
Cell Wall
b)
Cytoplasm
c)
Nucleus
d)
Mitochondria
26.
To provide protection and form for the plant cell is a function of _________.
a)
Cell Wall
b)
Cytoplasm
c)
Nucleus
d)
Mitochondria
27.
To convert the radiant energy of the sun into the chemical energy of glucose through the process of photosynthesis is a function of _________.
a)
Cell Wall
b)

Large Central Vacuole

c)
Chloroplast
d)
Mitochondria
28.
Protects the cell from the outside environment. (Only Plants)
a)
Cell Membrane
b)
Chloroplasts
c)
Cell Wall
d)
Vacuoles
29.
Provides support and protection for the cell while also controlling the movement of materials in and out of the cell.
a)
Cellular Membrane
b)
Nucleus
c)
Ribosomes
d)
Vacuole
30.
Breaks down food  to release energy. Known as the power plant of the cell.
a)
Endoplasmic Reticulum
b)
Mitochondria
c)
Ribosomes
d)
Cell Wall
31.
The control center of the cell.
a)
Nucleus
b)
Nuclear Membrane
c)
Chloroplasts
d)
Golgi Aparatus
32.
Uses energy from the sun to make food for the plant.
a)
Cell Wall
b)
Cell Membrane
c)
Chloroplasts
d)
Vacuole
33.
What organelle is called the "powerhouse" of a cell?

a)
Endoplasmic Reticulum
b)
Nucleus
c)
Mitochondria
d)
Nucleolus
34.
What are tiny organelles that convert glucose into ATP?
a)
Ribosomes
b)
Vesicles
c)
Cytoskeleton
d)
Mitochondria
35.
A rigid layer that lies outside the cell's  membrane is...
a)
Cytoskeleton
b)
Cilia
c)
Cell Wall
d)
Flagella
36.

Which organelle contains DNA and controls the cell?

a)

Cell membrane

b)

nucleus

c)

nucleolus

d)

lysosme

37.

Which organelle controls what goes in and out of the cell?

a)

nucleus

b)

nucleolus

c)

cell membrane

d)

nuclear membrane

38.

This pigment is found in chloroplasts.

a)

rhodopsin

b)

chlorophyll

c)

thylakoid

d)

stroma

39.

Proteins are produced at this organelle.

a)

golgi body

b)

ribosome

c)

cytoskeleton

d)

cilia

40.

this organelle makes ATP.

a)

chloroplast

b)

mitochondria

c)

ribosome

d)

nucleolus

41.
The ____________ packages and processes material before it exports out of the cell.
a)
Vacuoles
b)
mitochondria
c)
Golgi apparatus 
d)
nucleus 
42.
Which of the following is an enzyme filled organelle that breaks down waste in the cell?
a)
lysosomes
b)
chloroplast
c)
mitochondria 
d)
Golgi apparatus 
43.
Which of the following is found inside a prokaryote?
a)
cytoplasm
b)
DNA
c)
ribosomes
d)
all of these
44.

Both Eukaryotic and Prokaryotic cells have __________.

a)

ribosomes

b)

nucleus

c)

ribosomes and a nucleus.

45.

Prokaryotic cells do not have…….

a)

membrane bound organelles

b)

cell membrane

c)

DNA

d)

genetic material

46.

The process of how things move in and out of the cell through the cell membrane is (a)  

47.

The two broad categories of cell transport are ...........

(select all correct answers)

a)

passive transport

b)

road transport

c)

food transport

d)

active transport

48.

In passive transport, .............

a)

energy is required

b)

energy is not required

49.

In active transport, .............

a)

energy is required

b)

energy is not required

50.

What is your observation after the 5 minutes?

4 lines
51.

What is your conclusion?

4 lines
52.

What is the definition of OSMOSIS?

a)

Diffusion of water through a selectively permeable membrane

b)

Molecular structure that surrounds the cell and controls what enters and leaves the cell

c)

Movement of molecules across the cell membrane against the concentration gradient

d)

Movement of molecules across the cell membrane from an area of high concentration to low concentration

53.

What is the definition of LIPID BILAYER?

a)

Molecular structure that surrounds the cell and controls what enters and leaves the cell

b)

Movement of molecules across the cell membrane against the concentration gradient

c)

Diffusion of water through a selectively permeable membrane

d)

Movement of molecules across the cell membrane from an area of high concentration to low concentration

54.

What is the definition of ACTIVE TRANSPORT?

a)

Movement of molecules across the cell membrane against the concentration gradient

b)

Diffusion of water through a selectively permeable membrane

c)

Molecular structure that surrounds the cell and controls what enters and leaves the cell

d)

Movement of molecules across the cell membrane from an area of high concentration to low concentration

55.

Identify the following structure

a)

Phospholipid

b)

Cell

c)

Cell membrane

d)

Protein

56.

What is the name of 'A' found on the structure below

a)

Lipid Bilayer (cell membrane)

b)

Protein

c)

Phosphate hydrophilic heads

d)

Lipid hydrophobic tails

57.

What is the name of 'B' found on the structure below

a)

Protein

b)

Lipic bilayer

c)

Phosphate hydrophilic heads

d)

Lipid hydrophobic heads

58.

What is the name of 'C' found on the structure below

a)

Phosphate hydrophilic heads

b)

Lipid hydrophobic tails

c)

Lipid bilayer

d)

protein

59.

What is the name of 'D' found on the structure below

a)

Lipid hydrophobic tails

b)

Protein

c)

Lipid bi layer

d)

Phosphate hydrophilic heads

60.

Which answer correctly describes the lipid bilayer?

a)

lipids are hydrophobic; phosphates are hydrophobic

b)

lipids are hydrophilic; phosphates are hydrophilic

c)

lipids are hydrophobic; phosphates are hydrophilic

d)

lipids are hydrophilic; phosphates are hydrophobic

61.

Why would the cell need energy to move molecules across the membrane?

a)

the molecule is going against the concentration gradient

b)

the molecule is to large to pass through the membrane

c)

the lipid membrane requires energy anytime something is moving across the membrane

62.

In passive diffusion, substances always move...

a)

from an area of higher concentration to an area of lower concentration

b)

from an area with more of the molecules to an area with fewer of the molecules

c)

from an area of lower concentration to an area of higher concentration

d)

from an area with fewer of the molecules to an area with more of the molecules

63.

What is the definition of FACILITATED DIFFUSION?

a)

Movement of molecules across the cell membrane from an area of high concentration to low concentration

b)

Diffusion of water through a selectively permeable membrane

c)

Movement of molecules across the cell membrane against the concentration gradient

d)

Molecular structure that surrounds the cell and controls what enters and leaves the cell

64.

The following cells have been placed in different solutions.

Make a prediction of what will happen.


(check all that are correct)

a)

Isotonic-- the cell will maintain size

b)

hypotonic-- the cell will increase in size

c)

hypertonic-- the cell will decrease in size

65.

In 2007, a young mom in Sacramento died after participating in a water-drinking contest. The goal was outlast others and not use the restroom while the participants continued to drink 8 oz of water every 15 minutes. She did win the contest, but complained as she got home about pain. Later that day, she died.


Explain using the following words, what could have taken place at the cellular level.

Osmosis

CellMembrane

WaterSolute

Hyptertonic

Hypotonic

Solvent

Equilibrium or Homeostasis

4 lines
66.
What process occurs when WATER diffuses across a membrane?
a)
endocytosis
b)
mitosis
c)
osmosis
d)
nuclear fission 
67.
What does “high concentration area” mean?
a)
Spread out
b)
Tightly packed together
c)
Uncrowded
d)
Spacious
68.
When particles move from areas of high concentration to areas less concentrated, this has taken place.
a)
diffusion
b)
mitosis
c)
endocytosis
d)
photosynthesis
69.
Why is diffusion and osmosis important to cells?
a)
It allows them to take in materials without using energy.
b)
It allows them to reproduce.
c)
It allows them to absorb sunlight.
d)
It allows cells to use all energy.
70.
What does selectively-permeable mean?
a)
The cell controls what passes in and out of the cell
b)
Nothing gets through
c)
The cell lets only large substances through
71.
What is diffusion?
a)
when molecules move 
b)
when molecules move from a high concentration to a low.
c)
no movement 
d)
molecules move everywhere
72.
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
73.
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
74.
Permeable means
a)
things can pass through
b)
the concentration levels are different
c)
it is permanent
d)
things are stuck
75.
Movement of particles from high to low concentration. 
a)
Passive Transport
b)
Active Transport

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