Understanding Diffusion in the Human Body

What is the primary function of diffusion in the human body?

• To produce waste products

• To create energy

• To move molecules from low to high concentration

• To facilitate the movement of molecules from high to low concentration

How does oxygen enter the bloodstream from the lungs?

• Through the digestive system

• Via osmosis

• By diffusion from high to low concentration

• Through active transport

What role do red blood cells play in oxygen transport?

• They convert oxygen into carbon dioxide

• They transport oxygen throughout the body

• They store oxygen

• They produce oxygen

Where do nutrients diffuse into the bloodstream?

• In the stomach

• In the small intestine

• In the large intestine

• In the lungs

What happens to waste products produced by cells?

• They are converted into nutrients

• They remain in the bloodstream

• They diffuse out of cells into the bloodstream for removal

• They are stored in the cells