Tonicity 2: Question Preview (ID: 27629)

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What is the term for allowing some substances through but not others?
a) Selectively Permeable b) diffusion c) selective choice d) active transport
Diffusion is the movement of particles from an area of...
a) low concentration to an area of high concentration b) high concentration across a membrane to low concentration c) high concentration to an area of low concentration d) ow concentration across a membrane to high concentration
The diffusion of water across a selectively permeable membrane is:
a) active transport b) tonicity c) solute d) osmosis
To move substances against the concentration gradient, the cell must use:
a) energy b) water c) ions d) exocytosis
The type of solution that a sell would shrink in
a) isotonic b) hypertonic c) hypotonic d)
Water moves INTO a cell that is placed in a(n)_________________ SOLUTION.
a) hypotonic b) hypertonic c) isotonic d) platonic
A cell placed in a hypotonic solution will:
a) shrink b) swell c) stay the same d)
When iodine molecules pass through a plastic bag this is a form of osmosis.
a) true b) false c) d)
Transport that does not require energy is called passive transport.
a) true b) false c) d)
Cell Theory states which of the following?
a) cells come from other cells b) cells cannot be destroyed c) cells are the largest living units d) Cells are not alive
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