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What is a characteristic of carrier proteins involved in facilitated diffusion?
What is a characteristic of carrier proteins involved in facilitated diffusion?
- They move substances down their concentration gradients (correct)
- They require energy input to function
- They are only involved in active transport
- They move substances against their concentration gradients
What is the direction of substance movement facilitated by carrier proteins?
What is the direction of substance movement facilitated by carrier proteins?
- Up their concentration gradients
- Against their concentration gradients
- Randomly in all directions
- Down their concentration gradients (correct)
What is the energy requirement for facilitated diffusion?
What is the energy requirement for facilitated diffusion?
- It only requires energy at night
- It does not require any energy input (correct)
- It requires a lot of energy
- It requires a little energy
What type of transport is facilitated diffusion an example of?
What type of transport is facilitated diffusion an example of?
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What is responsible for facilitating diffusion in cells?
What is responsible for facilitating diffusion in cells?
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What happens to the concentration gradient during facilitated diffusion?
What happens to the concentration gradient during facilitated diffusion?
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What is the role of carrier proteins in facilitated diffusion?
What is the role of carrier proteins in facilitated diffusion?
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What type of transport is facilitated diffusion?
What type of transport is facilitated diffusion?
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What drives the movement of substances in facilitated diffusion?
What drives the movement of substances in facilitated diffusion?
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What is the result of facilitated diffusion on the concentration gradient?
What is the result of facilitated diffusion on the concentration gradient?
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What is a characteristic of facilitated diffusion that distinguishes it from active transport?
What is a characteristic of facilitated diffusion that distinguishes it from active transport?
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