Passive Transport Question Preview (ID: 33453)


7th Grade Cellular Movement. TEACHERS: click here for quick copy question ID numbers.

Passive transport is called passive because it occurs WITHOUT
a) light
b) energy
c) cell wall
d) cell membrane

Which of the following is NOT a type of passive transport?
a) Endocytosis
b) Facilitated diffusion
c) Diffusion
d) Osmosis

Osmosis is the diffusion of _____ across a membrane
a) water
b) glucose
c) sodium
d) proteins

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

When molecules are spread evenly across the cell membrane, ______________________ is reached.
a) equilibrium
b) difference
c) transportation
d) solution

Which of the following is an example of diffusion?
a) Sugar dissolving in a glass of water
b) Rain falling from the sky
c) Water freezing into ice
d) A stone sinking to the bottom of a lake

Which of the following describes a state of equilibrium?
a) When the concentration of water outside a cell is the same as the concentration of water inside a cell
b) When water molecules have stopped moving or vibrating
c) When a cell with a lot of water in it continues to absorb water
d) When the roots of a tree absorbs nutrients from the soil

When substances are constantly moving back and forth across a cell membrane, the cell is said to be in a state of:
a) equilibrium
b) diffusion
c) transport
d) absorption

Which of the following is a true statement about passive transport?
a) Substances naturally move from areas of high concentration to areas of low concentration
b) Molecules of glucose can be imported into a cell without energy being expended
c) Cells do not need water or oxygen in order to function
d) Diffusion plays only a minor role in passive transport

What might happen if cell membranes did not have pores?
a) Substances would not be able to move in and out
b) Viruses and bacteria would be able to get in more easily
c) The cells would not be able to divide
d) The cell membrane would become a cell wall, instead

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