Homeostasis and Cellular Transport Flashcard

Front

How does the cell membrane contribute to homeostasis?

Back

By selectively allowing substances to enter and exit the cell.

Front

What role do protein channels play in cellular transport?

Back

They allow specific molecules to pass through the cell membrane.

Front

What happens to water in swollen gums when rinsing with warm salt water?

Back

Water in the gums has diffused out of the cells.

Front

In which direction do molecules move during passive transport?

Back

From high concentration to low concentration.

Front

What is endocytosis?

Back

It involves the engulfing of substances into the cell.

Front

Define homeostasis.

Back

The maintenance of a stable internal environment in an organism.

Front

What is the function of the cell membrane?

Back

To protect the cell and regulate what enters and exits.

Front

Explain 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 is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the significance of concentration gradients in cellular transport?

Back

They drive the movement of substances across the cell membrane.