When is dynamic equilibrium reached?

when there is continuous movement, but no change

Why is drinking too much water be harmful to athletes?

cells are in a hypotonic solution and will swell

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

plant cells are in a hypertonic solution & the cells shrink

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

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

more water inside the cell than out

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

regulate the movement of material in & out of cell

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

active transport moves substances from low to high

diffusion of water across the cell membrane

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

vacuoles fill with water due to osmosis

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

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Cell Transport

30 termsStudBud Administration69 plays

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

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Questions 30

Answers

1
Solution C is considered
hypertonic
hypotonic
active transport
isotonic
2
What types of materials are expelled from cells during exocytosis?
small molecules such as carbon dioxide
large molecules like hormones
charged ions
water and glycerol
3
Which means of particle transport is shown in the figure?
endocytosis
protein pump
exocytosis
facilitated diffusion
4
Algae cells are placed in an isotonic solution. Salt is added to the solution, what will happen
stay the same
they will burst
shrink
They will swell
5
When is dynamic equilibrium reached?
when the rate of change in the solution slows by one half
when the molecules are mixed and stop moving
when there is continuous movement, but no change
when the movement of molecules stops being random
6
What helps keep the cell membrane flexible?
cholesterol
carbohydrate chain
peripheral protein
integral protein
7
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
8
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
out of the cell causing it to shrink
into the cell causing it to swell
9
Solution B is considered
hypertonic
isotonic
hypotonic
active transport
10
The diffusion of water across a selectively permeable membrane is called
osmosis
active transport
pinocytosis
osmotic pressure
11
Solution A is considered
active transport
isotonic
hypertonic
hypotonic
12
Why do plants wilt?
the plant cells are sleepy
plant cells are in a hypotonic solution & the cells swell
plants don't wilt they get lazy
plant cells are in a hypertonic solution & the cells shrink
13
Which term best describes the tails of a phospholipid?
contains a phosphate group and repels water
contains a phosphate group and attracts water
contains two fatty acids and attracts water
contains two fatty acids and repels water
14
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
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
more solute in the cell than out
concentration of water outside the cell is too great
16
Which cell membrane structure helps identify the cell?
peripheral protein
cholesterol
transmembrane protein
carbohydrate chain
17
Which of the following structures serves as the cell's boundary?
mitochondria
channel protein
plasma membrane
chloroplast
18
Which means of particle transport requires no energy?
endocytosis
sodium/potassium pump
osmosis
exocytosis
19
Which movement of substances through a cell membrane requires energy?
active transport
diffusion
osmosis
facilitated diffusion
20
Which of the following is an example of passive transport?
exocytosis
endocytosis
sodium/potassium pump
facilitated diffusion
21
Which term describes the relatively constant internal physical condition of an organism?
organ system
homeostasis
unicellularity
cell specialization
22
A plant cell is placed in a hypotonic solution. What will happen to the plant cell?
it will shrink
it will stay the same
it will wilt
it will enlarge
23
Which of the following is a function of the plasma membrane?
store water, salt, proteins, and carbs
keep the cell wall in place
break down lipids, carbs, and proteins
regulate the movement of material in & out of cell
24
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
25
What is osmosis?
there is no such thing as osmosis
sleeping on a textbook and acquiring knowledge
diffusion of water across the cell membrane
diffusion of glucose across the cell membrane
26
Which cell membrane protein crosses both layers of the phospholipid bilayer?
glycocalyx
peripheral protein
transmembrane protein
cholesterol
27
Why is misting fruits and vegetables with water help them look fresh?
vacuoles fill with water due to osmosis
water cannot move through the cell membrane
plants do not have a rigid cell wall
plant cells in a hypotonic solution lose water
28
At what point in the process of diffusion is equilibrium reached?
when there are an equal amount of molecules
equilibrium can never be reached
when there are more molecules in than out
when there are more molecules out than in
29
An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes
water to move into the cell
solutes to move out of the cell
solutes to move into the cell
water to move out of the cell
30
During diffusion, when the concentration of molecules on both side of the membrane are the same
they will stop moving
they will continue to move in both directions
they will move out of the cell
they will move into the cell

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