Specialized Exchange Surfaces Quiz

What are specialized exchange surfaces?

• Parts of an organism that regulate body temperature

• Parts of an organism that store nutrients

• Parts of an organism that help with reproduction

• Parts of an organism that exchange substances with their environment

What are the main specialized exchange surfaces in humans?

• Lungs and Small intestines

• Root hair cells and Leaves

• Bronchioles and Intestines

• Alveoli and Villi

What is the role of alveoli in the lungs?

• Absorb carbon dioxide from the air

• Absorb water and mineral ions from the soil

• Help absorb nutrients like glucose and amino acids

• Exchange oxygen and carbon dioxide between the air and the blood

What is the role of Villi in the small intestines?

• Absorb water and mineral ions from the soil

• Absorb carbon dioxide from the air

• Exchange oxygen and carbon dioxide between the air and the blood

• Help absorb nutrients like glucose and amino acids

What is the purpose of having a large surface area in specialized exchange surfaces?

• Allows more molecules to diffuse across at the same time

• Blocks the diffusion of substances

• Helps maintain a concentration gradient

• Allows substances to diffuse across quickly

Why are specialized exchange surfaces usually very thin?

• Helps maintain a concentration gradient

• Allows more molecules to diffuse across at the same time

• Shortens the diffusion distance for substances

• Blocks the diffusion of substances

What does it mean for exchange surfaces to be permeable to substances?

• Help maintain a concentration gradient

• Block the diffusion of substances

• Shortens the diffusion distance for substances

• Allow the substances to diffuse across

Why is a good blood supply important for animal exchange surfaces?

• Helps maintain a concentration gradient

• Shortens the diffusion distance for substances

• Allows more molecules to diffuse across at the same time

• Blocks the diffusion of substances

What is the external medium for the alveoli in animals?

• Food

• Soil

• Water

• Air

What is the external medium for the Villi in animals?

• Food

• Air

• Water

• Soil