WorksheetsCell Membrane and Diffusion
Total questions: 15
Worksheet time: 15mins
Osmosis is the diffusion of _____.
proteins
cytoplasm
milk
water
Water enters the cell in a ____ solution.
hypertonic
hypotonic
isotonic
Water leaves the cell in a ____ solution.
hypertonic
hypotonic
isotonic
What happens to the size of a cell if it is placed in a hypotonic solution?
it shrinks
it swells
it stays the same
What happens to the size of a cell if it is placed in a hypertonic solution?
it shrinks
it swells
it stays the same
What happens to size of the cell if it is placed in an isotonic solution?
it shrinks
it swells
it stays the same
A cell in a ____ solution is in dynamic equilibrium. This means there is no osmosis and the cell size will not change.
hypotonic
hypertonic
isotonic
The cell part that controls what enters and leaves the cell is the:
Nucleus
Mitochondria
Cell Wall
Cell Membrane
During diffusion, if the concentration of molecules on each side of the cell membrane are THE SAME, what do the molecules do?
leave the cell
keep moving back and forth
enter the cell
stop moving
This picture shows an experiment with water (blue small dots) and glucose (large red dots). The glucose (solute) CANNOT move across the membrane (middle dashed black line). Which side is hypertonic for solute?
The left side (less big dots)
The right side (more big dots)
Which direction will the solute move?
To the right
To the left
It cannot move across the membrane because it is too big
If material is too big to go through the cell membrane, special proteins HELP move molecules from high to low through the membrane. What is that called?
active transport
osmosis
equilibrium
facilitated diffusion
Which of the following best describes the function of the cell membrane?
A) It provides energy to the cell
B) It controls the movement of substances in and out of the cell
C) It synthesizes proteins
D) It stores genetic information
What is the primary mechanism by which oxygen and carbon dioxide move across the cell membrane?
A) Active transport
B) Facilitated diffusion
C) Simple diffusion
D) Endocytosis
In an experiment, a cell is placed in a solution and it swells. What can be inferred about the solution?
A) The solution is hypertonic
B) The solution is hypotonic
C) The solution is isotonic
D) The solution is at equilibrium
