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WorksheetsCell Membranes & Transport
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
Cell membranes are important mainly because ___.
a)
all materials needed by the cell must pass across them.
b)
all cell functions occur in the membrane.
c)
they only allow water to enter the cell.
d)
all energy is produced by them
2.
Diffusion is the movement of molecules from
a)
low concentration to high concentration.
b)
equilibrium to high concentration.
c)
high concentration to low concentration.
d)
equilibrium to low concentration
3.
Movement of water across a selectively permeable membrane is known as ___.
a)
osmosis
b)
active transport
c)
exocytosis
d)
facilitated transport
4.
Iodine changed starch/glucose in a dialysis bag from white to blue (photo). What happened?
a)
The starch changed to glucose.
b)
The iodine diffused into the bag.
c)
The starch diffused out of the bag.
d)
The glucose diffused out of the bag.
5.
T/F: If starch and glucose are in a dialysis bag, only the glucose can cross the membrane.
a)
True
b)
False
6.
The starch/glucose solution in a dialysis bag will swell up over time. The swelling is due to
a)
endocytosis.
b)
exocytosis.
c)
plasmolysis.
d)
osmosis.
7.
Drinking seawater is dangerous to humans because
a)
the water is a hypertonic solution.
b)
the water is a hypotonic solution.
c)
the water is an isotonic solution.
d)
the water is poisonous.
8.
T/F: "Plasma membrane" is the same thing as "cell membrane."
a)
True
b)
False
9.
Which of the following processes requires the cell to spend energy in the form of ATP?
a)
active transport
b)
passive transport
c)
diffusion
d)
osmosis
10.
Blood cells would swell and burst in a/an ___ solution.
a)
hypertonic
b)
hypotonic
c)
isotonic
d)
all three of these
11.
Blood cells would appear wrinkled and bumpy in which of the following solutions? Hide answers
a)
hypertonic
b)
hypotonic
c)
isotonic
d)
all three solutions
12.
If some substances can cross a membrane but others can't, the membrane is said to be ___.
a)
porous
b)
permeable
c)
semi-permeable
d)
non-transporting
13.
Cell membranes control which of the following?
a)
making copies of DNA for the cell
b)
producing energy for the cell
c)
producing proteins for the cell
d)
removing wastes from the cell
14.
An example of osmosis would be ___.
a)
sodium ions moving across the cell membrane.
b)
glucose molecules entering the cell.
c)
water moving across the cell membrane.
d)
oxygen moving into the cell.
15.
In the photo, molecules spread across the membrane over time. This is an example of ___.
a)
active transport
b)
pinocytosis
c)
phagocytosis
d)
diffusion
16.
Which example indicates the lowest level of organization within an organism?
a)
An organ removes waste products from blood.
b)
An organ system digests food.
c)
A cell transmits nerve impulses.
d)
A tissue exchanges oxygen and carbon dioxide gases.
17.
Which cell structure is responsible for transporting sugars into cells?
a)
cell membrane
b)
nucleus
c)
mitochondrion
d)
vacuole
18.
Which cell structure produces energy for the cell?
a)
cell membrane
b)
mitochondrion
c)
nucleus
d)
vacuole
19.
The process by which large particles enter a cell and are placed in vesicles is called ___.
a)
endocytosis
b)
exocytosis
c)
plasmacytosis
d)
halitosis
20.
Pinotcytosis literally means ___.
a)
little cell membrane
b)
cell drinking
c)
cell eating
d)
water passing
21.
T/F: Both pinocytosis and phagocytosis are example of endocytosis.
a)
True
b)
False
22.
A solution with a high concentration of solute is called a/an ___ solution.
a)
non-osmotic
b)
isotonic
c)
hypotonic
d)
hypertonic
23.
A solution with equal amounts of solute on both sides of a membrane is a/an ___ solution.
a)
non-osmotic
b)
isotonic
c)
hypotonic
d)
hypertonic
24.
Maintaining a steady, stable internal environment within an organism is known as ___.
a)
homeostasis
b)
isotonic solution
c)
dynamic equilibrium
d)
equilibrium
25.
The photo is an illustration of which process?
a)
endocytosis
b)
exocytosis
c)
facilitated transport
d)
active transport
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