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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?
What is responsible for facilitating diffusion in cells?
What is responsible for facilitating diffusion in cells?
What happens to the concentration gradient during facilitated diffusion?
What happens to the concentration gradient during facilitated diffusion?
What is the role of carrier proteins in facilitated diffusion?
What is the role of carrier proteins in facilitated diffusion?
What type of transport is facilitated diffusion?
What type of transport is facilitated diffusion?
What drives the movement of substances in facilitated diffusion?
What drives the movement of substances in facilitated diffusion?
What is the result of facilitated diffusion on the concentration gradient?
What is the result of facilitated diffusion on the concentration gradient?
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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