Gas Exchange Quiz

What is the primary organ involved in gas exchange in humans?

• lungs

• stomach

• liver

• heart

How does the respiratory system of fish differ from that of humans?

• Fish use skin to extract oxygen from water.

• Fish use lungs to extract oxygen from water.

• Fish use nostrils to extract oxygen from water.

• Fish use gills to extract oxygen from water.

Explain the concept of countercurrent exchange in fish gills.

• Inefficient oxygen exchange between water and blood

• Efficient oxygen exchange between water and blood

• No exchange of oxygen between water and blood

• Exchange of carbon dioxide between water and blood

What is the tracheal system in insects and how does it facilitate gas exchange?

• It facilitates gas exchange by allowing oxygen to diffuse directly into the cells and carbon dioxide to diffuse out.

• It is a system for producing sound

• It is a system for transporting food and nutrients

• It is a system for regulating body temperature

What is the role of alveoli in the mechanism of gas exchange in humans?

• Alveoli store excess carbon dioxide in the body

• Alveoli produce mucus to protect the lungs

• Alveoli regulate blood pressure in the lungs

• Alveoli facilitate the exchange of oxygen and carbon dioxide in the lungs.

Describe the structure and function of fish gills in relation to gas exchange.

• Fish gills facilitate the exchange of oxygen and carbon dioxide between the water and the fish's blood.

• Fish gills are used for digesting food

• Fish gills are responsible for producing sound

• Fish gills help in regulating body temperature

How do insects prevent water loss while facilitating gas exchange through their tracheal system?

• Exhaling excess water through their tracheal system

• Using gills to extract water from the air

• Drinking large amounts of water to compensate for the loss

• Closing their spiracles and using specialized tracheal end cells

Compare the efficiency of gas exchange in humans, fish, and insects.

• Humans have a less efficient gas exchange compared to fish and insects.

• Insects have a less efficient gas exchange compared to humans and fish.

• Humans have a more efficient gas exchange compared to fish and insects.

• Fish have a less efficient gas exchange compared to humans and insects.

Explain the role of hemoglobin in the transport of gases in humans and fish.

• Hemoglobin binds to oxygen and transports it in both humans and fish.

• Hemoglobin binds to carbon dioxide and transports it in both humans and fish.

• Hemoglobin is not involved in the transport of gases in humans and fish.

• Hemoglobin only transports gases in humans, not in fish.