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WorksheetsCell Membrane and Transport Practice
Total questions: 66
Worksheet time: 43mins
What is the job of the cell membrane?
Make proteins
Fold proteins
Direct cell's activities
Allow things in and out of the cell
The movement of Molecules (like salt) from high concentration to low concentration is known as
Equilibrium
Diffusion
Osmosis
Active Transport
Dye particles in water will spread out until they reach ______
Equilibrium
Proteins
Phospholipids
Concentration Gradients
The movement of water from high concentration to low concentration is known as
Equilibrium
Diffusion
Osmosis
Active Transport
The proteins in the cell membrane
Help make other proteins
Prevent water from coming into the cell
provide channels for things to move through
Fold molecules once they reach the edge of the cell
Equilibrium is when
Two sides of a math equation are equal
There are more molecules on one side of the membrane than on the other
The cell membrane prevents molecules from entering
Molecules are evenly spread out
Which is true of active transport?
It includes osmosis
It includes diffusion
It moves molecules from High to Low concentration
It requires energy
If a molecule needs to go from low concentration to high concentration, it would most likely use
Diffusion
Osmosis
Active Transport
Look at the image. Which way will the water move?
Out of the dialysis tubing
Into the dialysis tubing
Both in and out of the tubing
The water will not move
Look at the image. What will happen to the mass of the dialysis tubing?
The mass will increase
The mass will decrease
The mass will stay the same
Look at the image. Which way will the starch move?
Out of the dialysis tubing
Into the dialysis tubing
Both in and out of the tubing
The starch will not move
The passage of a substance from an area of high concentration to an area of low concentration
Active Transport
Diffusion
Vesicular Transport
Exocytosis
The general name for movement of substances across cell membranes without need of energy input
passive transport
active transport
Passive Transport uses ____ energy
no
a lot of
a little bit of
some
Passive Transport is the movement of particles across the membrane from an area of [ ___ ] to an area of [ ___ ]
high to low
low to high
low to low
high to high
The general name for movement of substances across cell membranes without need of energy input
passive transport
active transport
_____________ is the free movement of particles across the membrane with the concentration gradient
diffusion
facilitated diffusion
active transport
fusion
Diffusion is a form of __________ transport.
Passive
Active
Easy
Free
What type of transport is occurring in the diagram?
diffusion
facilitated diffusion
active transport
Which type of transport goes from low concentration to high concentration using ATP energy?
active transport
passive transport
What is the job of the cell membrane?
Make proteins
Fold proteins
Direct cell's activities
Allow things in and out of the cell
A plant's root cell already has a higher concentration of nutrients inside the cell than outside of the cell. How can the cell still take in nutrients?
Diffusion
Passive Transport
Active Transport
Facilitated Diffusion
Look at the picture. What is most likely to occur over a period of time?
Oxygen will leave the cell.
Oxygen will enter the cell.
Carbon dioxide will leave the cell.
Carbon dioxide will enter the cell.
A balloon allows water but not sugar to pass through it. The balloon contains a 5% sugar solution. A beaker contains a 10% sugar solution. Which statement is true?
Water will enter the balloon and it will swell
Water will leave the balloon and it will shrink
Sugar will enter the balloon
Water will enter the balloon via active transport
Diffusion occurs when molecules
move through a permanent barrier
move against the concentration gradient
move from high to low concentration
move from low to high concentration
If you could no longer make ATP, which type of transport could still occur. Choose all that apply.
Diffusion
Pinocytosis
Exocytosis
Osmosis
If the body can no longer make ATP, which type of transport would be impacted?
Facilitated Diffusion
Osmosis
Active Transport
Simple Diffusion
Human red blood cells contain 0.9% sodium chloride as a component of their cytoplasm. What would happen if an IV solution containing 3.5% sodium chloride is introduced into a person?
The red blood cell would get bigger and burst.
The red blood cell would stay the same size.
The red blood cell would shrink.
The red blood cell would first loose water and then absorb water.
This picture describes the movement of molecules across the cell membrane. Choose 2 answers that correctly describes the movement of the molecules.
Molecules are moving up the concentration gradient.
Molecules are moving from an area of low concentration to area of high concentration .
Molecules are moving down the concentration gradient.
Molecules are moving from an area of high concentration to area of low concentration.
Active transport is when molecules move ________ the concentration gradient.
against
up
down
with
Passive transport is when molecules move ________ the concentration gradient.
against
up
down
with
The cell membrane needs to use energy to move molecules quickly out of the cell through a pump. What type of transport is this?
Passive transport
Active transport
The cell membrane is responsible for allowing molecules to diffuse through a protein channel, from high concentration to low concentration. What type of transport is this?
Passive Transport
Active transport
The cell membrane is responsible for allowing molecules to diffuse into or out of the cell. What type of movement is diffusion?
Passive transport
Active transport
This picture shows molecules of red dye that have moved. What is this type of movement called?
Osmosis; the water molecules are moving from high concentration to low
Diffusion; the dye molecules are moving from low to high concentration
Diffusion; the dye molecules are moving from high to low concentration.
Facilitated diffusion; because the molecules are moving through a protein channel.
Students are observing particles moving with the concentration gradient in a lab investigation. Which type of transport are they observing?
using pumps to move things quickly
passive transport
osmosis
endocytosis
Students are observing particles moving against the concentration gradient in a lab investigation. Which type of transport are they observing?
osmosis
active Transport
facilitated diffusion
diffusion
The movement of water molecules through a semi permeable membrane from an area of high water concentration to an area of lower water concentration.
Osmosis
Active transport
Co-transport
Counter-transport
The energy molecule that powers some modes of transport
ADP
ATP
AGP
ABP
If a molecule needs to go from low concentration to high concentration, it would most likely use
Diffusion
Osmosis
Active Transport
An area with a large amount of particles
Describes:
Low concentration
Describes:
High concentration
Describes:
Diffusion
Describes:
Osmosis
Organic compounds such as starch are too ___ to fit though the cell membrane. They must be digested into ___ before they can be absorbed
Big
simple sugars
Big
amino acids
small
amino acids
Big
fatty acids
Based on the distribution of these molecules, what would most likely happen after a period of time?
When a cell shrinks in size, what type of solution was added to it?
Salt solution
Tap water
distilled water
iodine solution
Active transport would be required to transport molecule B
Into the cell
Out of the cell
Diffusion is the movement of molecules from an area of
high to low concentration; no energy used.
low to high concentration; no energy used.
low to high concentration; ATP energy used
high to low concentration; ATP energy used
Which of the following could be represented by X?
Transports molecules across the membrane
Requires the use of ATP energy
Movement from high to low concentration
Movement from low to high concentration
Which molecule is in equilibrium (equally concentrated inside and outside of the cell)?
A
B
C
Where is B most likely to diffuse and why?
Out of the cell, b/c there is a higher conc. inside.
Into the the cell, b/c there is a higher conc. inside.
Into the the cell, b/c there is a lower conc. outside.
Out of the cell, b/c there is a lower conc. inside.
Active transport would be required to transport molecule B
Into the cell
Out of the cell
When is active transport used by a cell?
When the cell wants to maintain a high or low concentration.
When the cell becomes highly concentrated with water
In a salt water environment
In a distilled water environment
Which of the following does NOT describe the cell membrane?
It is selectively permeable
It is responsible for waste removal
Gases are exchanged here
It contains receptor molecules to receive messages
It is only found in plant cells
Explain why the bag shriveled in the beaker with 80% water and 20% starch.
Water moved from high to low concentration.
Water moved from low to high concentration.
Starch moved from high to low concentration.
Starch moved from low to high concentration.
Which of the following explains why plant cells are less likely to burst in distilled water?
Plant contain a cell wall for support and structure
Plant cells are unable to perform osmosis.
Plant cells contain vacuoles and chloroplasts
Plant cells have a rigid cell membrane and a square shape.
