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WorksheetsCell membrane and passive transport
Total questions: 55
Worksheet time: 14hrs 45mins
Name
Class
Date
1.
Which type of Passive Transport is being represented in this picture?
a)
Passive Diffusion
b)
Simple Diffusion
c)
Active Diffusion
d)
Facilitated Diffusion
2.
Movement of materials from high to low concentration through a protein channel.
a)
Passive Transport
b)
Active Transport
3.
a)
Passive Transport
b)
Active Transport
4.
Which statement best describes the cell membrane?
a)
The protective outer layer that controls what enters and leaves the cell.
b)
Stores information on DNA molecules / Directs and controls the activities of the cell.
c)
A folded membrane that moves materials around inside cells / Also acts as the site of manufacturing materials needed by the cell.
d)
The smallest organelle with a huge job / Makes proteins, which are the building blocks of the body.
5.
What is NOT TRUE about the cell membrane?
a)
It controls what enters and leaves the cell
b)
Semipermeable
c)
Phospholipid bilayer
d)
Contains digestive enzymes
6.
What does "bilayer" mean?
a)
one layer
b)
two layers
c)
laminated
d)
bilateral
7.
What is embedded in the phospholipid bilayer?
a)
Proteins
b)
Salt
c)
Water
d)
Worms
8.
True or False: Regulating what enters and leaves the cell helps the cell maintain homeostasis.
a)
True
b)
False
9.
What do the brown structures represent?
a)
Phospholipids
b)
Cholesterol Proteins
c)
Channel Proteins
d)
Cytoskeleton Filaments
10.
Hydrophilic means...
a)
water-loving
b)
water-fearing
c)
nonpolar
d)
lipid soluble
11.
Hydrophobic region of the cell membrane?
a)
E
b)
B
c)
C
d)
A
12.
Hydrophilic portion of cell membrane?
a)
A
b)
C
c)
D
d)
E
13.
What does the "fluid mosaic model" mean about the cell membrane?
a)
It can dissolve into fluid.
b)
The cell is mostly made of mosaic molecules.
c)
It looks like a flexible pattern made up of different parts.
d)
Somebody else should name these things.
14.
Small, non-polar molecules like CO2 and O2 and NO can pass through the cell membrane using what type of transport?
a)
Diffusion
b)
Osmosis
c)
Facilitated Diffusion
d)
Endocytosis
15.
The type of cellular transport that requires NO energy
a)
active transport
b)
passive transport
16.
The spreading of molecules from a high concentration to a low concentration.
a)
diffusion
b)
osmosis
c)
active transport
17.
A balance that an organism maintains by regulating what goes into and out of the cell.
a)
love
b)
peace
c)
homeostasis
d)
happiness
18.
The outside of the membrane often has small carbohydrates attached. Thais the purpose of these carbohydrates?
a)
energy
b)
identification
c)
transport
19.
This shows
a)
diffusion
b)
osmosis
c)
facilitated diffusion
d)
active transport
20.
This cellular structure helps organisms maintain homeostasis by controlling what substances may enter or leave cells.
a)
vacuole
b)
nucleus
c)
cell membrane
d)
cell wall
21.
What type of transport is this?
a)
facilitated diffusion
b)
active transport
c)
diffusion
d)
osmosis
22.
Special proteins help move particles, but NO energy is needed. This is..
a)
facilitated diffusion
b)
exocytosis
c)
active transport
d)
equilibrium
23.
What is this image?
a)
cell membrane
b)
mitochondria
c)
golgi apparatus
d)
endoplasmic reticulum
24.
In which direction will these molecules diffuse?
a)
from right to left
b)
from left to right
c)
they will not move at all
d)
they will move in both directions equally
25.
The cell membrane is selectively permeable, which means...
a)
All materials can enter and leave the cell
b)
Certain things can enter while others cannot
c)
The cell manually sorts through all materials
d)
Only certain cells can interact with the cell.
26.
Which part of this phospholipid is hydrophobic?
a)
fatty lipid tails
b)
head
c)
all of it is hydrophobic
d)
none of it is hydrophobic
27.
A phospholipid has 2 parts. What are they called?
a)
Hydrophilic Head, Hydrophobic Tail
b)
Hydrophobic Head, Hydrophilic Tail
28.
Describes the arrangement of the cell membrane as bendable and made of many parts.
a)
The Fluid Mosaic Model
b)
The Major Mobility Model
c)
The Crazy Cell Model
d)
The Maze Model
29.
___________ allow cells to recognize each other and act like ID tags.
a)
Carbohydrates
b)
Proteins
c)
Phospholipids
d)
Cholesterol
30.
Something is ___________ ____________
when some molecules can cross the membrane while others cannot.
when some molecules can cross the membrane while others cannot.
a)
Selectively (or Semi) Permeable
b)
Totally Transparent
c)
Liquid Licorice
d)
Heavily Patrolled
31.
___________ strengthens and stabilizes the cell membrane.
a)
Carbohydrates
b)
Proteins
c)
Phospholipids
d)
Cholesterol
32.
Lipid tails are...
a)
Hydrophobic
b)
Hydrophilic
33.
What does hydrophobic mean?
a)
Likes water as a friend
b)
Dissolves in water
c)
Loves water
d)
Hates water
34.
What does hydrophilic mean?
a)
Fills water up
b)
Hates water
c)
Loves water
d)
Only associates with water if it has to
35.
When looking at the cell membrane, where are the phosphate heads located?
a)
Floating between bilayer levels
b)
Outer part of the bilayer
c)
Inner part of the bilayer
d)
Located at different parts throughout the bilayer
36.
When looking at the cell membrane, where are the lipid tails located?
a)
Inner part of the bilayer
b)
Outer part of the bilayer
c)
At the end of the bilayer
d)
Goes through each end of the bilayer
37.
The phosphate heads of the lipid bilayer are
a)
Hydrophilic
b)
Hydrophobic
c)
Amphipathic
38.
What is B
a)
Phospholipid
b)
Protein
c)
Carbohydrate
d)
cholesterol
39.
What is D
a)
Phospholipid
b)
carrier protein
c)
cholesterol
d)
peripheral protein
40.
Which type of Passive Transport is being represented in this picture?
a)
Passive Diffusion
b)
Simple Diffusion
c)
Active Diffusion
d)
Facilitated Diffusion
41.
When particles move out of a cell through facilitated diffusion, the cell ____________.
a)
Gains energy
b)
Uses energy
c)
Releases energy
d)
Does not use energy
42.
How is diffusion (left) different from the process on the right?
a)
Diffusion takes place due to osmotic pressure.
b)
Diffusion requires cellular energy for the transfer of molecules.
c)
Diffusion requires protein channels as a passage-way for particles
d)
Diffusion transfers particles from an area of high to low concentration.
43.
Which type of Passive Transport is being represented in this picture?
a)
Passive Diffusion
b)
Simple Diffusion
c)
Active Diffusion
d)
Facilitated Diffusion
44.
Enzymes are...
a)
nucleic acids
b)
proteins
c)
lipids
d)
carbohydrates
45.
What happens when enzymes are heated to a high temperature?
a)
The enzymes die.
b)
The shapes of the enzyme are altered denature
c)
The enzymes' amino acid sequence changes.
d)
The enzymes remain the same
46.
Where do substrates bind on an enzyme?
a)
voltage-gated channels
b)
surface receptor
c)
calcium channels
d)
active site
47.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
48.
Can a change in pH alter the active site of an enzyme
a)
yes
b)
no
49.
Enzymes are composed of which of the following monomers?
a)
amino acids
b)
carbohydrates
c)
nucleotides
d)
monosaccharides
50.
What is indicated by letter A?
a)
enzyme
b)
product
c)
substrate
d)
active site
51.
What is indicated by letter C?
a)
enzyme
b)
product
c)
substrate
d)
active site
52.
What is indicated by letter B?
a)
enzyme
b)
product
c)
substrate
d)
active site
53.
In the diagram, what is letter A?
a)
product
b)
substrate
c)
enzyme-substrate complex
d)
active site
54.
An enzyme speeds up a reaction by
a)
lowering the activation energy.
b)
raising the activation energy.
c)
releasing energy.
d)
absorbing energy.
55.
What happens when enzymes are heated to a high temperature?
a)
The enzymes die.
b)
The shape of the enzyme are changed and it denatures
c)
The enzymes' amino acid sequence changes.
d)
The enzymes remain the same
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