Which of the following is a function of the plasma membrane?

regulate the movement of material in & out of cell

At what point in the process of diffusion is equilibrium reached?

when there are an equal amount of molecules

During diffusion, when the concentration of molecules on both side of the membrane are the same

they will continue to move in both directions

Which term best describes the head of a phospholipid?

contains a phosphate group and attracts water

diffusion of water across the cell membrane

Explain why more water is moving out the cell than into the cell

more water inside the cell than out

If a cell with 60% solute, is placed in a solution with 10% solute, where will water move?

into the cell causing it to swell

What is a major difference between facilitated diffusion and active transport?

active transport moves substances from low to high

When is dynamic equilibrium reached?

when there is continuous movement, but no change

Which term best describes the tails of a phospholipid?

contains two fatty acids and repels water

Why is drinking too much water harmful to athletes?

cells are in a hypotonic solution and will swell

plant cells are in a hypertonic solution & the cells shrink

Why is misting fruits and vegetables with water help them look fresh?

vacuoles fill with water due to osmosis

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Duplicate of Cell Transport

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#celltransport A quiz to review topics of cellular transport and cell membrane structure

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Questions 27

Answers

1
What helps keep the cell membrane flexible?
channel protein
carbohydrate chain
cholesterol
carrier protein
2
Which term describes the relatively constant internal physical condition of an organism?
organ system
cell specialization
homeostasis
unicellularity
3
Algae cells are placed in an isotonic solution. Salt is added to the solution, what will happen
they will burst
They will swell
stay the same
shrink
4
Which of the following is a function of the plasma membrane?
keep the cell wall in place
store water, salt, proteins, and carbs
regulate the movement of material in & out of cell
break down lipids, carbs, and proteins
5
A plant cell is placed in a hypotonic solution. What will happen to the plant cell?
it will shrink
it will enlarge
it will wilt
it will stay the same
6
At what point in the process of diffusion is equilibrium reached?
equilibrium can never be reached
when there are an equal amount of molecules
when there are more molecules in than out
when there are more molecules out than in
7
Which of the following structures serves as the cell's boundary?
mitochondria
plasma membrane
chloroplast
channel protein
8
What types of materials are expelled from cells during exocytosis?
large molecules like hormones
charged ions
water and glycerol
small molecules such as carbon dioxide
9
During diffusion, when the concentration of molecules on both side of the membrane are the same
they will continue to move in both directions
they will move out of the cell
they will stop moving
they will move into the cell
10
Which term best describes the head of a phospholipid?
contains a phosphate group and attracts water
contains a phosphate group and repels water
contains two fatty acids and repels water
contains two fatty acids and attracts water
11
An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes
solutes to move out of the cell
solutes to move into the cell
water to move out of the cell
water to move into the cell
12
Which means of particle transport is shown in the figure?
facilitated diffusion
protein pump
exocytosis
endocytosis
13
The diffusion of water across a selectively permeable membrane is called
osmosis
active transport
pinocytosis
osmotic pressure
14
What is osmosis?
diffusion of glucose across the cell membrane
sleeping on a textbook and acquiring knowledge
diffusion of water across the cell membrane
there is no such thing as osmosis
15
Explain why more water is moving out the cell than into the cell
more solvent outside the cell than in
more water inside the cell than out
concentration of water outside the cell is too great
more solute in the cell than out
16
If a cell with 60% solute, is placed in a solution with 10% solute, where will water move?
nothing will move
water would enter and leave in equal amounts
into the cell causing it to swell
out of the cell causing it to shrink
17
Which of the following is an example of passive transport?
sodium/potassium pump
facilitated diffusion
endocytosis
exocytosis
18
Solution B is considered
isotonic
hypotonic
hypertonic
active transport
19
What is a major difference between facilitated diffusion and active transport?
facilitated diffusion moves molecules through the membrane
active transport moves substances from low to high
active transport uses proteins
facilitated diffusion requires energy
20
When is dynamic equilibrium reached?
when the movement of molecules stops being random
when there is continuous movement, but no change
when the rate of change in the solution slows by one half
when the molecules are mixed and stop moving
21
Which term best describes the tails of a phospholipid?
contains a phosphate group and repels water
contains two fatty acids and attracts water
contains a phosphate group and attracts water
contains two fatty acids and repels water
22
Which movement of substances through a cell membrane requires energy?
diffusion
facilitated diffusion
active transport
osmosis
23
Which means of particle transport requires no energy?
endocytosis
sodium/potassium pump
exocytosis
osmosis
24
Why is drinking too much water harmful to athletes?
cells are in a hypertonic solution and will swell
cells are in a hypotonic solution and will shrink
cells are in a hypotonic solution and will swell
cells are in a hypertonic solution and will shrink
25
Why do plants wilt?
plant cells are in a hypertonic solution & the cells shrink
plant cells are in a hypotonic solution & the cells swell
plants don't wilt they get lazy
the plant cells are sleepy
26
Solution C is considered
active transport
isotonic
hypotonic
hypertonic
27
Why is misting fruits and vegetables with water help them look fresh?
vacuoles fill with water due to osmosis
plant cells in a hypotonic solution lose water
plants do not have a rigid cell wall
water cannot move through the cell membrane

Duplicate of Cell Transport Flashcards | StudBud