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Cell Transport Through The Membrane
Test Description: Transport through the cell membrane: diffusion, osmosis, tonicity, and more.
Instructions: Answer all questions to get your test result.
1) When molecules are moving from low to high concentration, this is ____________ .
A
active transport
B
facilitated diffusion
C
osmosis
D
diffusion
2) Passive transport requires no:
A
water
B
concentration gradient
C
none of these
D
energy/ATP
3) When molecules move from areas of high concentration to areas of low concentration it is called? This is also called down the concentration gradient.
A
active transport
B
diffusion
C
none of these
D
pinocytosis
4) What is the term used for the cell membrane since it lets only certain things through it?
A
selectively permeable
B
both semipermeable and selectively permeable are correct
C
semipermeable
D
impermeable
5) Which of the following statements best describes the lipid bilayer of a cell membrane?
A
The tails interact with the inside and outside of a cell while the polar heads are in the middle.
B
The lipid bilayer produces ATP for cellular energy.
C
The lipid bilayer is composed mostly of polysaccharides and proteins.
D
The polar heads interact with the inside and outside of a cell while the tails are in the middle.
6) In the iodine and the starch experiment, which molecules were able to pass through the dialysis tubing and why?
A
The starch, because the molecules are smaller.
B
Both iodine and starch moved because they are the same size.
C
Iodine, because the molecules are smaller.
D
None of these are correct.
7) In a hypertonic solution, which direction will the water will move?
A
out of the cell
B
there will be no net movement of water
C
in the cell
D
none of these are correct
8) If there are more water molecules in the cell than outside, what type of solution exists outside the cell.
A
none of these
B
hypertonic
C
hypotonic
D
isotonic
9) When a cell takes in a large, solid particle, this is called ________ and it is known as “cell eating.”
A
exocytosis
B
phagocytosis
C
pinocytosis
D
osmosis
10) Two types of passive transport are:
A
diffusion and osmosis
B
exocytosis and endocytosis
C
osmosis and pinocytosis
D
osmosis and endocytosis
*select an answer for all questions
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