moving cellular material

Front

What is passive transport?

Back

The movement of substances through a cell membrane without using the cell's energy.

Front

Why do dye particles accumulate on one side of a membrane over time?

Back

Some of the dye molecules diffused through the membrane.

Front

What causes plants to wilt?

Back

Low turgor pressure.

Front

What does a limp or wilted plant indicate?

Back

It indicates low turgor pressure.

Front

What is turgor pressure?

Back

Water pressure inside the plant cell that exerts an outward force on the cell wall.

Front

What is diffusion?

Back

The movement of particles from an area of higher concentration to an area of lower concentration.

Front

What is the role of the cell membrane?

Back

It controls the movement of substances in and out of the cell.

Front

What happens to plant cells in a hypertonic solution?

Back

They lose water and may become plasmolyzed, leading to wilting.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is a selectively permeable membrane?

Back

A membrane that allows certain substances to pass while blocking others.