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Cell biology
Osmosis
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Numan iqbal
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Cards (11)
What is osmosis?
Movement of water across a
membrane
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How does osmosis relate to diffusion?
Osmosis is a special case of
diffusion
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What type of membrane is involved in osmosis?
Partially
permeable
membrane
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What can pass through a partially permeable membrane?
Only
tiny molecules
like water
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What happens to water molecules during osmosis?
They pass both ways through the
membrane
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Why is there a net flow of water into the stronger sugar solution?
There are more
water molecules
on one side
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What does osmosis do to the concentration of a strong sugar solution?
It makes the solution more
dilute
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What is the overall effect of osmosis across the membrane?
It tries to even up the
concentration
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What is the definition of diffusion?
Passive movement of
particles
from high to low
concentration
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What are the key characteristics of osmosis?
Movement of
water molecules
Across a
partially permeable membrane
From
higher to lower water concentration
Passive process
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How does osmosis affect plant tissue?
Water movement into cells
Can cause
turgor pressure
Affects
cell rigidity
and structure
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