diffusion of water across the cell membrane

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

out of the cell causing it to shrink

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

they will continue to move in both directions

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

when there are an equal amount of molecules

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

more water inside the cell than out

When is dynamic equilibrium reached?

when there is continuous movement, but no change

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

active transport moves substances from low to high

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

vacuoles fill with water due to osmosis

Why is drinking too much water be harmful to athletes?

cells are in a hypotonic solution and will swell

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

regulate the movement of material in & out of cell

Which term best describes the tails of a phospholipid?

contains two fatty acids and repels water

Which term best describes the head of a phospholipid?

contains a phosphate group and attracts water

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Cell Transport - Another one - no atp

27 termsStudBud Administration

#celltransport A quiz to review topics of cellular transport and cell membrane structure without #atp

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Questions 27

Answers

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

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