Podcast
Questions and Answers
What is the main difference between diffusion and osmosis?
What is the main difference between diffusion and osmosis?
- Osmosis requires energy, while diffusion does not.
- Osmosis does not involve a concentration gradient.
- Diffusion involves water only, while osmosis involves all solutes.
- Diffusion can occur in all states of matter; osmosis only occurs in liquids. (correct)
What primarily drives the movement of water into root hair cells?
What primarily drives the movement of water into root hair cells?
- Active transport of solutes from the root hair.
- Diffusion of water from root hair to the soil.
- Osmosis due to concentration differences of solutes. (correct)
- Pressure exerted by the xylem as water rises.
Which statement about diffusion is true?
Which statement about diffusion is true?
- It occurs when molecules move from high to low concentration. (correct)
- Larger molecules diffuse faster than smaller molecules.
- Molecules will only diffuse in the presence of each other.
- It requires energy in the form of ATP.
How does the concentration of solutes in the soil compare to that in root hair cells?
How does the concentration of solutes in the soil compare to that in root hair cells?
In the context of photosynthesis, which gas diffuses out of the leaves?
In the context of photosynthesis, which gas diffuses out of the leaves?
Flashcards
Diffusion
Diffusion
Movement of molecules from an area of higher concentration to an area of lower concentration.
Osmosis
Osmosis
Special type of diffusion where water moves across a semi-permeable membrane from an area of higher water concentration to an area of lower water concentration.
Semi-permeable membrane
Semi-permeable membrane
A membrane that allows some molecules to pass through but not others.
Transpiration
Transpiration
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Root hairs
Root hairs
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