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WorksheetsAP Membrane Permeability
Total questions: 23
Worksheet time: 18mins
The cell membrane is selectively permeable, which means...
Everything can enter and nothing can leave
Certain things can enter while others cannot
Nothing can enter the cell at all
Only glucose can enter
What is the role of cholesterol in mammalian cell membranes?
It increases membrane fluidity and permeability to some solutes.
It reduces membrane fluidity but has no effect on permeability.
It increases membrane fluidity but has no effect on permeability.
It reduces membrane fluidity and permeability to some solutes.
The following are the components of plasma membrane. EXCEPT one?
cholesterol
proteins
carbohydrates
nucleotide
According to the Fluid mosaic model, the quasi-fluid nature of the lipids enable
Lateral movement of carbohydrates within the bilayer.
Lateral movement of proteins within the bilayer.
Free movement of lipids within the bilayer.
Free movement of ions within the bilayer
What is the component of the plasma membrane that helps to minimize the effects of temperature on fluidity
cholesterol
phospholipids
carbohydrates
proteins
Which one identifies the cell?
transport protein
glycoprotein/glycolipid
cholesterol
phospholipid bilayer
Identify a peripheral protein
structure a
strucure b
structure g
structure h
Which of the following substances would have the most trouble crossing the membrane by diffusing through the bilayer?
water
oxygen
carbon dioxide
a sodium ion
A major function of glycoproteins and glycolipids in the membane is to
glue cells together to form tissues
allow cells to identify each other
attach membrane to cytoskeleton
help retain shape
What kinds of molecules pass through a cell membrane most easily?
ionic
small and hydrophobic
large polar
large and hydrophobic
When doctors perform organ transplants, they choose a donor tissue match. Which component is being matched?
membrane phospholipids
cytoskeleton
cell surface carbohydrates
cholesterol
