Cell Transport

Front

What is the function of channel proteins in cell transport?

Back

Channel proteins facilitate the movement of specific molecules across the cell membrane by providing a passageway.

Front

What direction does water move in relation to the concentration gradient?

Back

Water moves from areas of low solute concentration to areas of high solute concentration.

Front

How does temperature affect the rate of diffusion?

Back

Higher temperatures increase the kinetic energy of molecules, which speeds up the rate of diffusion.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, relying on concentration gradients.

Front

What is an example of active transport?

Back

An example of active transport is endocytosis, where cells engulf substances.

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, water enters the cell, causing it to swell and potentially burst.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy, while active transport requires energy to move substances against their concentration gradient.

Front

What role do carrier proteins play in cell transport?

Back

Carrier proteins bind to specific molecules and change shape to transport them across the cell membrane.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move substances across the membrane.