Cell Structure Flashcard

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is the initial stage of diffusion in a liquid?

Back

Dye is dropped into the liquid.

Front

What is the cell membrane?

Back

The thin, flexible barrier that surrounds all cells, controlling the movement of substances in and out.

Front

What happens in an isotonic solution?

Back

There is no net movement of water into or out of the cell.

Front

What type of process is diffusion?

Back

Diffusion is a passive process, meaning it does not require energy.

Front

What occurs when a cell is placed in a hypotonic solution?

Back

Water moves into the cell, potentially causing it to swell and burst.

Front

What is osmosis?

Back

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

Front

What is a hypertonic solution?

Back

A solution that has a higher concentration of solutes compared to the inside of the cell, causing water to move out.

Front

What is the role of the cell wall?

Back

The cell wall provides structure and protection to plant cells, fungi, and some bacteria.

Front

What is cytoplasm?

Back

Cytoplasm is the jelly-like substance within a cell that contains organelles and is the site of many metabolic processes.