Which term best describes the head of a phospholipid?

contains a phosphate group and attracts water

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

vacuoles fill with water due to osmosis

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

they will continue to move in both directions

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

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

plant cells are in a hypertonic solution & the cells shrink

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

Which term best describes the tails of a phospholipid?

contains two fatty acids and repels water

Why is drinking too much water be harmful to athletes?

cells are in a hypotonic solution and will swell

When is dynamic equilibrium reached?

when there is continuous movement, but no change

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

when there are an equal amount of molecules

studbud

Duplicate of Cell Transport

30 termsStudBud Administration30 plays

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

Flashcards30 cardsFPractice quizPHost liveL

Questions 30

Answers

1
Which term best describes the head of a phospholipid?
contains two fatty acids and repels water
contains two fatty acids and attracts water
contains a phosphate group and repels water
contains a phosphate group and attracts water
2
Which movement of substances through a cell membrane requires energy?
osmosis
active transport
diffusion
facilitated diffusion
3
Solution A is considered
isotonic
hypertonic
active transport
hypotonic
4
Why is misting fruits and vegetables with water help them look fresh?
water cannot move through the cell membrane
vacuoles fill with water due to osmosis
plants do not have a rigid cell wall
plant cells in a hypotonic solution lose water
5
During diffusion, when the concentration of molecules on both side of the membrane are the same
they will move into the cell
they will stop moving
they will continue to move in both directions
they will move out of the cell
6
A plant cell is placed in a hypotonic solution. What will happen to the plant cell?
it will wilt
it will shrink
it will stay the same
it will enlarge
7
If a cell with 60% solute, is placed in a solution with 10% solute, where will water move?
nothing will move
out of the cell causing it to shrink
water would enter and leave in equal amounts
into the cell causing it to swell
8
Which means of particle transport is shown in the figure?
endocytosis
facilitated diffusion
protein pump
exocytosis
9
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
10
What is a major difference between facilitated diffusion and active transport?
active transport uses proteins
active transport moves substances from low to high
facilitated diffusion requires energy
facilitated diffusion moves molecules through the membrane
11
What types of materials are expelled from cells during exocytosis?
large molecules like hormones
water and glycerol
charged ions
small molecules such as carbon dioxide
12
Why do plants wilt?
plants don't wilt they get lazy
plant cells are in a hypertonic solution & the cells shrink
the plant cells are sleepy
plant cells are in a hypotonic solution & the cells swell
13
Which term describes the relatively constant internal physical condition of an organism?
unicellularity
homeostasis
cell specialization
organ system
14
What is osmosis?
sleeping on a textbook and acquiring knowledge
there is no such thing as osmosis
diffusion of water across the cell membrane
diffusion of glucose across the cell membrane
15
An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes
water to move out of the cell
solutes to move into the cell
solutes to move out of the cell
water to move into the cell
16
What helps keep the cell membrane flexible?
peripheral protein
carbohydrate chain
cholesterol
integral protein
17
Explain why more water is moving out the cell than into the cell
more solvent outside the cell than in
more solute in the cell than out
more water inside the cell than out
concentration of water outside the cell is too great
18
Algae cells are placed in an isotonic solution. Salt is added to the solution, what will happen
shrink
stay the same
They will swell
they will burst
19
Which cell membrane structure helps identify the cell?
carbohydrate chain
transmembrane protein
cholesterol
peripheral protein
20
Solution C is considered
isotonic
active transport
hypertonic
hypotonic
21
Which term best describes the tails of a phospholipid?
contains two fatty acids and repels water
contains a phosphate group and repels water
contains a phosphate group and attracts water
contains two fatty acids and attracts water
22
Solution B is considered
hypertonic
isotonic
hypotonic
active transport
23
Which of the following structures serves as the cell's boundary?
channel protein
chloroplast
mitochondria
plasma membrane
24
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 shrink
cells are in a hypotonic solution and will swell
cells are in a hypertonic solution and will shrink
25
Which means of particle transport requires no energy?
endocytosis
sodium/potassium pump
exocytosis
osmosis
26
When is dynamic equilibrium reached?
when there is continuous movement, but no change
when the molecules are mixed and stop moving
when the rate of change in the solution slows by one half
when the movement of molecules stops being random
27
Which of the following is an example of passive transport?
endocytosis
exocytosis
sodium/potassium pump
facilitated diffusion
28
Which cell membrane protein crosses both layers of the phospholipid bilayer?
glycocalyx
peripheral protein
transmembrane protein
cholesterol
29
The diffusion of water across a selectively permeable membrane is called
osmosis
pinocytosis
osmotic pressure
active transport
30
At what point in the process of diffusion is equilibrium reached?
when there are more molecules out than in
equilibrium can never be reached
when there are an equal amount of molecules
when there are more molecules in than out

Duplicate of Cell Transport Flashcards | StudBud