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WorksheetsMovement through Membranes (LC Bio)
Total questions: 20
Worksheet time: 21mins
Cell membranes are described as selectively permeable.
Four students were asked to explain what this means. Which one is correct?
Student 1: Cell membranes prevent all materials from entering the cell.
Student 2: Cell membranes only provide structural support for the cell.
Student 3: Cell membranes regulate which substances can enter and exit the cell.
Student 4: Cell membranes allow water and water-soluble substances to enter the cell.
The movement of water through a semi-permeable membrane is called ___________.
active transport
respiration
osmosis
diffusion
Passive transport is called "passive" because it occurs WITHOUT
cause.
using energy.
a concentration gradient.
a cell wall.
If you were looking for transport proteins, where would you find them?
in a cell's nucleus
in a cell's membrane
in a cell's cell wall
in a cell's lysosome
Which is true about active transport?
It requires energy
it is a type of diffusion
It moves substances down the concentration gradient
it moves material from high to low concentration
When animal cells are placed in a __________ solution they begin to swell.
Hypertonic
Isotonic
Hypotonic
Concentrated
Most of the cell membrane is made of...
Phospholipids
Cholesterol
Proteins
DNA
When carbon dioxide diffuses into a cell, this is called:
osmosis
facilitated diffusion
simple/passive diffusion
active transport
