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WorksheetsAP Bio Cells Review
Total questions: 18
Worksheet time: 15mins
Name
Class
Date
1.
What 4 structures are common between plant, animal, and bacterial cells?
a)
Golgi Apparatus, Chloroplasts, Ribosomes, Nucleus
b)
Cell Wall, Mitochondria, Cell Membrane, Cytoplasm
c)
Rough ER, Smooth ER, Nucleus, Ribosomes
d)
DNA, Cytoplasm, Ribosomes, Cell membrane
2.
A protein that forms an ion channel through a membrane is most likely
a)
a peripheral membrane protein
b)
a phospholipid
c)
an enzyme.
d)
a transmembrane protein
3.
The difference between osmosis and diffusion is that
a)
diffusion is passive transport, whereas osmosis is active transport
b)
only in diffusion do molecules move from areas of high concentration to areas of low concentration
c)
osmosis is the opposite of diffusion and only involves the movement of water
d)
osmosis refers specifically to the movement of water, whereas diffusion refers to the movement of any type of molecules
4.
If aquaporins are injected into the membranes of epithelial cells that line blood vessels,
a)
the flow of Na+ through aquaporins will increase
b)
the intracellular concentration of K+ will increase
c)
the membranes will become more permeable to water
d)
the electrical properties of the cells will be altered
5.
A saltwater snail is placed in freshwater. What happens to its cells?
a)
They shrink
b)
They swell
c)
Nothing happens
6.
When cells are placed in a __________ solution they begin to swell.
a)
Hypertonic
b)
Isotonic
c)
Hypotonic
d)
Equalized
7.
Hydrophobic region of the cell membrane?
a)
E
b)
B
c)
C
d)
A
8.
A HYPERTONIC solution has a _____ concentration of solute than the interior of the cell and a cell will ______ when placed into this solution.
a)
lower; shrink
b)
lower; swell
c)
higher; shrink
d)
higher; swell
9.
Which of the following is NOT a type of passive transport?
a)
diffusion
b)
facilitated diffusion
c)
osmosis
d)
endocytosis
10.
What is the approximate sucrose concentration in the potato core?
a)
.43 M
b)
.30 M
c)
0.0 M
d)
1.0 M
11.
Special proteins help move particles, but NO energy is needed. This is..
a)
facilitated diffusion
b)
exocytosis
c)
active transport
d)
equilibrium
12.
What kind of cells usually have a cell wall?
a)
Plants and Animals
b)
Only Animals
c)
Only Plants
d)
Plants and Fungi
13.
Keratin is a protein found in hair. Where in a cell is keratin made?
a)
nucleus
b)
vacuole
c)
ribosomes
d)
mitochondria
14.
Which organelle helps with organelle movement throughout the cell and maintains cell shape?
a)
plasmodesmata
b)
cytoskeleton
c)
cytosol
d)
Endoplasmic reticulum
15.
A neuron responds to a particular neurotransmitter by opening gated ion channels. The neurotransmitter is serving as which part of the cell communication pathway?
a)
relay molecule
b)
endocrine molecule
c)
signal molecule
d)
receptor
16.
At puberty, an adolescent female body changes in both structure and function of several organ systems, primarily under the influence of changing concentrations of estrogens and other steroid hormones. How can one hormone, such as estrogen, mediate so many effects?
a)
Estrogen is produced in very large concentration and therefore diffuses widely.
b)
Estrogen binds to specific receptors inside many kinds of cells, each of which have different responses to its binding.
c)
The subcomponents of estrogen, when metabolized, can influence cell response.
d)
Estrogen is kept away from the surface of any cells not able to bind it at the surface.
17.
Phosphorylation cascades involving a series of protein kinases are useful for cellular signal transduction because
a)
they amplify the original signal manyfold.
b)
they always lead to the same cellular response.
c)
they are species specific.
d)
the number of molecules used is small and fixed.
18.
Lipid–soluble signaling molecules, such as testosterone, cross the membranes of all cells but affect only target cells because
a)
intracellular receptors are present only in target cells.
b)
only target cells retain the appropriate DNA segments.
c)
only target cells possess the cytosolic enzymes that transduce the testosterone.
d)
most cells lack the Y chromosome required.
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