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Passive Transport
Test Description: 7th grade cellular movement
Instructions: Answer all questions to get your test result.
1) Passive transport is called passive because it occurs WITHOUT
A
light
B
cell wall
C
cell membrane
D
energy
2) Which of the following is NOT a type of passive transport?
A
Diffusion
B
Osmosis
C
Facilitated diffusion
D
Endocytosis
3) Osmosis is the diffusion of _____ across a membrane
A
water
B
glucose
C
sodium
D
proteins
4) What is it called when molecules move across the cell membrane from an area of high concentration to an area of low concentration through a carrier protein?
A
Diffusion
B
Osmosis
C
Active Transport
D
Facilitated Diffusion
5) When molecules are spread evenly across the cell membrane, ______________________ is reached.
A
solution
B
difference
C
transportation
D
equilibrium
6) Which of the following is an example of diffusion?
A
Sugar dissolving in a glass of water
B
A stone sinking to the bottom of a lake
C
Rain falling from the sky
D
Water freezing into ice
7) Which of the following describes a state of equilibrium?
A
When a cell with a lot of water in it continues to absorb water
B
When the roots of a tree absorbs nutrients from the soil
C
When water molecules have stopped moving or vibrating
D
When the concentration of water outside a cell is the same as the concentration of water inside a cell
8) When substances are constantly moving back and forth across a cell membrane, the cell is said to be in a state of:
A
absorption
B
transport
C
diffusion
D
equilibrium
9) Which of the following is a true statement about passive transport?
A
Diffusion plays only a minor role in passive transport
B
Substances naturally move from areas of high concentration to areas of low concentration
C
Cells do not need water or oxygen in order to function
D
Molecules of glucose can be imported into a cell without energy being expended
10) What might happen if cell membranes did not have pores?
A
Substances would not be able to move in and out
B
The cells would not be able to divide
C
Viruses and bacteria would be able to get in more easily
D
The cell membrane would become a cell wall, instead
*select an answer for all questions
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