Marathon Runner HW 1

Front

What system in the human body moves blood containing glucose and oxygen to every cell?

Back

Circulatory system.

Front

What is the tendency of an organism to maintain a balanced state in order to stay healthy?

Back

Homeostasis.

Front

How does oxygen enter the cell?

Back

By diffusion.

Front

How does water enter the cell?

Back

By osmosis.

Front

What is needed for cell respiration and is absorbed from the air?

Back

Oxygen.

Front

What is the primary function of the circulatory system?

Back

To transport nutrients, gases, hormones, and waste products throughout the body.

Front

Define homeostasis in biological terms.

Back

Homeostasis is the process by which living organisms regulate their internal environment to maintain stable, constant conditions.

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is osmosis?

Back

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

Front

What role does glucose play in the body?

Back

Glucose is a primary source of energy for cells.