Cell Membrane and Transport
Biology ⇒ Cell Biology
Cell Membrane and Transport starts at 7 and continues till grade 12.
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See sample questions for grade 12
A cell is placed in an isotonic solution. What will happen to the cell?
Describe the process of endocytosis.
Describe the process of phagocytosis.
Describe the role of aquaporins in the cell membrane.
Describe the role of peripheral proteins in the cell membrane.
A cell is placed in an isotonic solution. What will happen to the cell?
A red blood cell placed in a hypotonic solution will:
(1) Shrink
(2) Swell and burst
(3) Remain unchanged
(4) Lose its membrane
What would happen to a plant cell placed in a hypertonic solution?
A red blood cell placed in a hypotonic solution will:
(1) Shrink
(2) Swell and burst
(3) Remain unchanged
(4) Lose its membrane
Which component of the cell membrane is primarily responsible for its selective permeability?
(1) Cholesterol
(2) Phospholipids
(3) Glycoproteins
(4) Peripheral proteins
Which of the following best describes exocytosis?
(1) Movement of water into the cell
(2) Engulfing of large particles
(3) Release of substances from the cell
(4) Movement of ions through channels
Which of the following best describes the function of integral proteins in the cell membrane?
(1) They are only found on the surface
(2) They span the membrane and assist in transport
(3) They store energy
(4) They are involved in DNA replication
Osmosis is the movement of ________ across a selectively permeable membrane.
The main function of the cell membrane is to ________ the movement of substances into and out of the cell.
The movement of molecules from an area of higher concentration to an area of lower concentration is called ________.
The sodium-potassium pump is an example of ________ transport.
True or False: Carrier proteins are involved in both facilitated diffusion and active transport.
True or False: Facilitated diffusion requires energy from ATP.
True or False: Large polar molecules can easily diffuse through the lipid bilayer without assistance.
True or False: Simple diffusion can occur for both polar and nonpolar molecules.
