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WorksheetsAP-Bio: Cell Structure and Function
Total questions: 40
Worksheet time: 40mins
Name
Class
Date
1.
The absorption of nutrients is determined by...
a)
The cell wall
b)
The cell's surface area
c)
The cell's ribosomes
d)
The cell's DNA
2.
The amount of nutrients needed is determined by...
a)
The cell's volume
b)
The cell's surface area
c)
The cell's Rough ER
d)
The cell's Smooth ER
3.
The larger a cell is, the more difficult it is for the cell to move enough nutrients and wastes across its cell membrane to maintain its normal functions.
a)
True
b)
False
4.
A cell has a volume of 64 units and total surface area of 96 units. What is the cell's surface area to volume ratio?
a)
2:3
b)
2:8
c)
3:4
d)
4:7
5.
Which of the following is least efficient?
a)
A
b)
B
c)
C
d)
D
6.
Generally, cells will divide once they become -
a)
depleted of nutrients
b)
too large
c)
14 hours
d)
diploid
7.
Which statement about diffusion is false?
a)
Diffusion does not require ATP
b)
Simple diffusion depends upon specific carrier proteins
c)
In diffusion, molecules move from areas of greater concentration to areas of lesser concentration
d)
Diffusion continues until the molecular concentrations are in equilibrium
8.
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
9.
Which of the following is major cause of the size limits for certain types of cells?
a)
evolutionary progression in cell size; more primitive cells have smaller sizes.
b)
the need for sufficient surface area to support the cell's metabolic needs.
c)
limitation on the strength and integrity of the plasma membrane as cell size increases
d)
the difference in plasma membranes between prokaryotes and eukaryotes
10.
As a cell’s size increases, its ratio of surface area to volume decreases.
a)
True
b)
False
11.
Which of the following has the largest surface area to volume ratio?
a)
A
b)
B
c)
C
d)
D
12.
A patient has had a serious accident and lost a lot of blood. In an attempt to replenish body fluids, distilled water-equal to the volume of blood lost-is transferred directly into one of his veins. What will be the most probable result of this transfusion?
a)
The patient's red blood cells will shrivel up because the blood fluid has become hypertonic compared to the cells.
b)
The patient's red blood cells will shrivel up because the blood fluid has become hypotonic compared to the cells.
c)
It will have no unfavorable effect as long as the water is free of viruses and bacteria.
d)
The patient's red blood cells will swell because the blood fluid has become hypotonic compared to the cells.
13.
Which of the following would likely move through the lipid bilayer of a plasma membrane most rapidly?
a)
CO2
b)
an amino acid
c)
starch
d)
glucose
14.
When a plant cell, such as one from a tulip stem, is submerged in a very hypotonic solution, what is likely to occur?
a)
The cell membrane will lyse.
b)
The cell will burst.
c)
The cell will become turgid.
d)
Plasmolysis will shrink the interior.
15.
Plasma membranes are relatively impermeable to water-soluble molecules because
a)
the membranes are waxy
b)
water molecules are nonpolar
c)
their bilayer is comprised of phospholipids
d)
they have salt crystals embedded within them
16.
What forms the channels and pumps in the phospholipid bilayer?
a)
carbohydrates
b)
proteins
c)
hydrophilic heads
d)
lipids
17.
Which of the following is NOT part of the cell membrane?
a)
Lipids
b)
Carbohydrates
c)
Proteins
d)
Nucleic Acids
18.
Hydrophilic portion of cell membrane?
a)
A
b)
C
c)
D
d)
E
19.
The cellular process in which materials are moved across a membrane from an area of low concentration to an area of high concentration is called
a)
Osmosis
b)
Simple Diffusion
c)
Active Transport
d)
Passive Transport
20.
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
21.
___________ allow cells to recognize each other and act like ID tags.
a)
Carbohydrates
b)
Proteins
c)
Phospholipids
d)
Cholesterol
22.
___________ strengthens and stabilizes the cell membrane.
a)
Carbohydrates
b)
Proteins
c)
Phospholipids
d)
Cholesterol
23.
This picture represents what type of cell transport?
a)
endocytosis
b)
exocytosis
c)
osmosis
d)
passive transport
24.
The concentration of water is higher in the soil than in plant root cells. Water moves into root cells of a plant by...
a)
Facilitated Diffusion
b)
Simple Diffusion
c)
Active Transport
d)
Osmosis
25.
Molecules diffusing with the concentration gradient through a protein channel is...
a)
Facilitated Diffusion
b)
Simple Diffusion
c)
Active Transport
d)
Osmosis
26.
In a nerve cell, ATP energy is used to pump sodium (Na) out of the cell and potassium (K) into the cell. This is an example of...
a)
Facilitated Diffusion
b)
Simple Diffusion
c)
Active Transport
d)
Osmosis
27.
The cell below is in a _________ solution.
a)
Hypotonic
b)
Hypertonic
c)
Isotonic
28.
The cell below is in a _____________ solution.
a)
Hypertonic
b)
Hypotonic
c)
Isotonic
29.
A cell in an isotonic solution will
a)
swell
b)
shrink
c)
stay the same size
d)
impossible to tell
30.
What type of transport is this?
a)
facilitated diffusion
b)
active transport
c)
diffusion
d)
osmosis
31.
A cell will __________________ in a hypotonic solution.
a)
swell and perhaps burst (lyse)
b)
shrink
c)
the size of the cell will not change
d)
the size of the cell will change from large to small and from small to large
32.
A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases. Which of the following has occurred?
a)
The swollen gums have absorbed the saltwater solution.
b)
The saltwater solution lowers the temperature of the water in the gums.
c)
The salt in the solution has moved against the concentration gradient.
d)
The water in the gums has moved out due to the high concentration of salt in the solution.
33.
Look at the diagram of a cross-section of a cell membrane below. The cell membrane controls movement of materials into and out of the cell. The following particles are moving from high concentration to low concentration and are using a carrier protein. How would you describe this type of movement across the membrane?
a)
simple osmosis
b)
active transport
c)
simple diffusion
d)
facilitated diffusion
34.
Look at the cross section of a cell membrane of a eukaryotic cell. H+ ions are being pumped from a low concentration to a high concentration. How do you describe this type of transport across the cell membrane?
a)
active transport
b)
passive transport
c)
facilitated diffusion
d)
co-transport
35.
When material passes into and out of a cell at equal rates and there is no difference in concentration between the inside and outside of the cell, the cell is in a state of...
a)
dynamic equilibrium
b)
diffusion
c)
osmosis
d)
active transport
36.
Which ions are involved in an action potential?
a)
Na; Cl
b)
Na; K
c)
K; Cl
d)
Na; Ca
37.
The sodium potassium pump restores the resting potential. By which process does this work?
a)
Osmosis
b)
Diffusion
c)
Facilitated diffusion
d)
Active transport
38.
If a cells Ψp = 3 bars and its Ψs = -4.5 bars, what is the resulting Ψ ?
a)
-7.5
b)
7.5
c)
-1.5
d)
1.5
39.
At 22 ° C, zucchini cores are measured and determined to have a sucrose concentration of 0.36M. What is the Ψs of these cells and in which direction will the net flow of water be?
a)
0.64 net flow of water out of the cell
b)
-0.36 net flow of water into the cell
c)
8.17 net flow of water out of the cell
d)
-8.83 net flow of water into the cell
40.
What is the Ψs of a 1.0M sugar solution at 22 ° C under standard atmospheric conditions?
a)
-24.5 bars
b)
24.5 bars
c)
-2.45
d)
2.45
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