Cell Transport

Front

What is Selective Permeability?

Back

The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.

Front

What process allows water to move into root cells of a plant when the concentration of water is higher in the soil?

Back

Osmosis.

Front

What is true about active transport?

Back

It requires energy.

Front

What does passive transport require?

Back

No energy.

Front

What happens to an egg placed in pure water for 48 hours?

Back

The egg will gain water and swell.

Front

Define Osmosis.

Back

The movement of water molecules from an area of high concentration to an area of low concentration through a selectively permeable membrane.

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy and moves substances down their concentration gradient.

Front

What is facilitated diffusion?

Back

The process of transporting substances across a cell membrane with the help of carrier proteins, without using energy.

Front

What is a concentration gradient?

Back

A difference in the concentration of a substance across a space.

Front

What is the role of the cell membrane in transport?

Back

The cell membrane regulates what enters and exits the cell, maintaining homeostasis.