WorksheetsAP Biology Review (Biochemistry, the cell)
Total questions: 67
Worksheet time: 42mins
Name
Class
Date
1.
Which of the following is correct about the molecule cholesterol?
a)
it is a polar molecule
b)
it is a protein
c)
it stores energy as a charbohydrate
d)
it is hydrophobic
2.
All of the following are correct about enzymes EXCEPT?
a)
they enable reactions to occur that would not normally occur.
b)
they lower the energy activation
c)
they are polymers of amino acids
d)
they generally denature at temperatures above 40 degrees Celsius
3.
A liquid has a pH of 3. Which of the following is correct about this liquid?
a)
it is alkaline
b)
the concentration of protons in the liquid is .01 molar
c)
it has a similar pH to most human body cells
d)
it has the same pH as human blood
4.
Which of the following is correct about water?
a)
it is a polar molecule and contains polar bonds
b)
it is a polar molecule and contains non-polar bonds
c)
it is a non-polar molecule and contains polar bonds
d)
it is a non-polar molecule and contains non-polar bonds
5.
Which of the following is correct about cells?
a)
prokaryotic cells lack nuclear material
b)
ribosomes are found in both prokaryotes and eukaryotes
c)
smooth endoplasmic reticulum is involved in DNA synthesis
d)
cilia consist of microfilaments
6.
Which cell structure is most directly involved with apoptosis?
a)
golgi apparatus
b)
endoplasmic reticulum
c)
nucleolus
d)
lysosome
7.
Which of the following is a correct statement about cell function?
a)
countercurrent exchange is an example of passive transport
b)
the passage of Ca ions through a Ca channel requires energy
c)
the water potential of pure water is a negative number
d)
all body cells look very much alike except for fat cells, which have a large central vacuole
8.
Which is a correct statement about this cell in a solution?
a)
the cell is turgid
b)
the cell has lost water because it is a hypertonic solution
c)
the cell has lost water because it is in a hypotonic solution
d)
the cell is a plant cell
9.
Which of the following is not directly involved with cell communication?
a)
simple diffusion
b)
quorum sensing
c)
helper T cells
d)
acetylcholine
10.
A liquid with a pH of 4 is _x more concentrated in H+ than a liquid with a pH of 6.
a)
10
b)
100
c)
1,000
d)
10,000
11.
What makes a molecule polar?
a)
Equal sharing of valence electrons
b)
Unequal sharing of valence electrons
c)
Stealing of electrons
d)
Temporary charges that come and go
12.
Which functional group is a base?
a)
Amine
b)
Carboxyl
c)
Methyl
d)
Sulfhydryl
13.
When water is added to split a molecule, the reaction is known as a(n) __ reaction.
a)
dehydration synthesis
b)
condensation
c)
hydrolysis
d)
super magical
14.
Which biomolecule is mainly hydrocarbons and therefore very hydrophobic?
a)
carbohydrate
b)
nucleic acid
c)
protein
d)
lipid
15.
Peptide bonds are formed when _ link to form a polymer.
a)
nucleic acids
b)
amino acids
c)
monosaccharides
d)
polypeptides
16.
How does your body use lipids?
a)
Primary source of energy
b)
energy storage and insulation
c)
speeds up chemical reaction
d)
defense
17.
What macromolecule does Benedict's test for?
a)
Monosaccharide
b)
Polysaccharide
c)
Protein
d)
Lipid
18.
What molecule is this?
a)
this is a monosaccharide
b)
this is a polysaccharide
c)
this is a protein
d)
this is a lipid
19.
What molecule is this?
a)
this is a monosaccharide
b)
this is a polysaccharide
c)
this is a protein
d)
this is a lipid
20.
What element is found in proteins but not carbs nor lipids?
a)
carbon
b)
hydrogen
c)
nitrogen
d)
oxygen
21.
What is adhesion?
a)
Water molecules sticking to water molecules
b)
Water molecules sticking to something else
c)
A film at the surface
22.
When water was poured down the string there were two properties or water that were in play. Water stuck to the string. This was adhesion. However, this worked better if the string was already wet. What property of water explains why?
a)
Cohesion
b)
Adhesion
c)
Surface Tension
d)
High Specific Heat
23.
What type of bond is found inside of a water molecule?
a)
Covalent
b)
Hydrogen
c)
Ionic
d)
Peptide
24.
A solution has a pH of 6.4. Which description is most appropriate?
a)
Weak Acid
b)
Strong Acid
c)
Neutral
d)
Weak Base
25.
What type of ion is found in an acid?
a)
H+
b)
OH-
c)
H2O
d)
Hydroxide
26.
Which of the following is the process used to bond the monomers together?
a)
Hydrolysis
b)
Water Removal
c)
Dehydration Synthesis
d)
Water Synthesis
27.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
28.
on an enzyme, the site that attaches to a substrate
a)
Polypeptide
b)
Base
c)
Substrate
d)
Active site
29.
What type of macromolecule are enzymes?
a)
carbohydrate
b)
protein
c)
nucleic acid
d)
lipid
30.
Which of the following environmental changes could denature an enzyme?
a)
too high a concentration of substrate
b)
too high a concentration of enzyme
c)
pH too low
d)
too low a concentration of substrate
31.
Which is the best description of a Hydrogen Bond?
a)
The bond between an oxygen and hydrogen inside of a water molecule
b)
The bond between two different water molecules because of their slight charges
c)
The bond any Hydrogen makes
32.
What is a solution that has an excess of hydroxide (OH-) ions?
a)
pH
b)
acid
c)
neutral
d)
base
33.
This is a heterogeneous mixture in which particles settle out unless it is constantly stirred.
a)
colloid
b)
suspension
c)
solution
d)
alloy
34.
The structural level of a protein least affected by hydrogen bonds is
a)
primary level
b)
secondary level
c)
tertiary level
d)
all levels are equally affected
35.
What are compartments that sort and organize contents of a cell into sturctures called organelles?
a)
Organelles
b)
Protiens
c)
Carbohydrates
d)
Cell Membranes
36.
Organelles increase efficiency and allow specialization with in a cell.
a)
True
b)
False
37.
What makes up the cell membrane?
a)
Lipid Monolayer
b)
Lipid Bilayer
c)
Protiens
d)
Carbohydrate Chains
38.
What structure is responsible for making proteins?
a)
Nucleus
b)
Mitochondria
c)
Golgi Apparatus
d)
Ribosome
39.
What is the function of the rough endoplasmic reticulum?
a)
to make energy
b)
modify and transport proteins made by the ribosomes on it
c)
store water and other vital molecules
d)
to make new membranes and neutralize toxins
40.
What is the function of the smooth endoplasmic reticulum?
a)
to make energy
b)
modify and transport proteins made by the ribosomes on it
c)
store water and other vital molecules
d)
to make new membranes and neutralize toxins
41.
Which of the following is not a function of the Golgi apparatus?
a)
modifies, sorts, packages, and distributes proteins
b)
prepare materials for export out of the cell
c)
produce proteins from mRNA from the nucleus
d)
produces membrane packages called vesic
42.
Vesicle filled with digestive enzymes that break down lipids, carbohydrates, and proteins into monomers. Recycle damaged or unused organelles.
a)
ER
b)
Lysosome
c)
Vacuole
d)
Mitochondria
43.
What is the organelle used in cellular respiration and converts glucose sugar to ATP? Contains a double membrane and its own DNA.
a)
Golgi Apparatus
b)
ER
c)
Nucleus
d)
Mitochondria
44.
What is the name of the protein used to make microtubules and microfilaments?
a)
Traction
b)
Leptin
c)
Actin
d)
Filamentin
45.
A special sent of microtubules used in movement. Long tail whip structure that propels the cell forward.
a)
Cilla
b)
Flagella
c)
Magellan
d)
Salmonela
46.
Show proper bonding for CO2
a)
C=O=C
b)
C-O-C
c)
O=C=O
d)
O-C-O
47.
Cl- is a(n)
a)
anion
b)
cation
c)
neutron
d)
proton
48.
Which is the closest definition of organelle(s)
a)
A small body in a cell's cytoplasm meant to carry out a specific action.
b)
The region enclosed by the cell membrane that includes the fluid and organelle(s)
c)
Deoxyribonucleic acid, or a genetic material that provides instructions for all cell processes.
d)
A protective layer that covers a cell's surface.
49.
Which is the closest definition of DNA
a)
A small body in a cell's cytoplasm meant to carry out a specific action.
b)
The region enclosed by the cell membrane that includes the fluid and organelle(s)
c)
Deoxyribonucleic acid, or a genetic material that provides instructions for all cell processes.
d)
A protective layer that covers a cell's surface.
50.
Which of the following is the closest definition to CYTOSKELETON?
a)
An organelle in which cellular respiration occurs.
b)
The organelle that makes proteins by putting together chains of amino acids using instructions from the DNA.
c)
A fluid-filled vesicle found in the cells of most animals, plants, and fungi.
d)
A network of protein filaments that gives shape and support to cells.
51.
Which of the following is the closest definition of CHLOROPLASTS?
a)
A system of membranes near the nucleus.
b)
An organelle in plant cells that allows plants and some protists to make their own food.
c)
A network of protein filaments that gives shape and support to cells.
d)
Organelles that contain digestive enzymes, which break down worn-out or damaged organelles and foreign invaders in the cell.
52.
Which of the following is the closest definition of LYSOSOMES?
a)
An organelle in which cellular respiration occurs.
b)
The organelle that makes proteins by putting together chains of amino acids using instructions from the DNA.
c)
Organelles that contain digestive enzymes, which break down worn-out or damaged organelles and foreign invaders in the cell.
d)
A rigid structure that surrounds the cell membrane.
53.
Which type of cell has circular DNA?
a)
Eukaryotic
b)
Prokaryotic
54.
Which of these organisms is considered a Eukaryotic?
a)
A Protist
b)
A Plant
c)
A animal
d)
All of the Above
55.
Protists are found in what type of environment
a)
wet or moist environment
b)
dry or hot environment
56.
Where are peroxisomes found?
a)
small and large intestines
b)
stomach
c)
diaphragm
d)
kidney and liver cells
57.
Without this, the cell membrane would break easily-
a)
cholesterol
b)
carbohydrates
c)
proteins
d)
other molecules
58.
What are the three types of cell fibers?
a)
microfilaments, intermediate filaments, macrofilaments
b)
microfilaments, intermediate filaments, cillia
c)
microcilia, microvilli, flagella
d)
microfilaments, intermediate filaments, microtubules
59.
What cell extension are microfilaments a part of?
a)
microvilli
b)
macrofilaments
c)
intermediate filaments
d)
mictrotubules
60.
The channel proteins located in the gap-junctions connect-
a)
cytoplasm
b)
cell wall
c)
plasma membranes
d)
nucleus
61.
Skin cells are also known as-
a)
lysosomes
b)
integusomes
c)
cartisomes
d)
desmosomes
62.
What joins adjacent cells?
a)
air junctions
b)
tight junctions
c)
gap junctions
d)
desmosomes
63.
Catabolism is the net ____ of energy and Anabolism is the net ____ of energy
a)
output;input
b)
input;output
c)
output;output
d)
input;input
64.
The active site of an enzyme is defined as-
a)
part of enzyme that reacts with water
b)
part of enzyme that connects with cells
c)
part of enzyme that causes cancer
d)
part of the enzyme that binds to a substate
65.
Proenzymes are-
a)
inactive
b)
always moving
c)
active
d)
only in the feet
66.
Which increases the surface area of the inner membrane of mitochondria?
a)
cristae
b)
cisternae
c)
cytoplasm
d)
endoplasmic reticulum
67.
What is potential energy?
a)
When an object is in motion
b)
When an object is not in motion
c)
all of the above
d)
none of the above
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