Biology- Transport across membranes

Questions about diffusion, osmosis and active transport.

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A bigger concentration gradient does what to the rate of diffusion?
Increases it.
1 of 8
Active transport uses energy from which process?
Respiration.
2 of 8
Osmosis is the net movement of what type of molecules?
Water molecules.
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Diffusion transports particles from a low to high concentration- true or false?
False- they travel from high to low down a concentration gradient.
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In osmosis, water molecules travel from a high ______ to a low ________, fill in the blanks.
High water potential, low water potential.
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How does a large surface area to volume ratio affect transport across membranes?
It increases the rate of transport.
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How does a high temperature affect diffusion?
It increases the rate of it as the particles have more kinetic energy.
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Osmosis is the net movement of particles across a what?
Partially/selectively permeable membrane.
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Other cards in this set

Card 2

Front

Active transport uses energy from which process?

Back

Respiration.

Card 3

Front

Osmosis is the net movement of what type of molecules?

Back

Preview of the front of card 3

Card 4

Front

Diffusion transports particles from a low to high concentration- true or false?

Back

Preview of the front of card 4

Card 5

Front

In osmosis, water molecules travel from a high ______ to a low ________, fill in the blanks.

Back

Preview of the front of card 5
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