Gas Exchange in Animals Quiz

Which organ do fish use for gas exchange?

• Lungs

• Gills

• Skin

• Spiracles

How do insects exchange gases?

• Through their lungs

• Through gills

• Through spiracles and tracheal tubes

• Through their skin

What is the main purpose of gas exchange in animals?

• To absorb nutrients

• To obtain oxygen and remove carbon dioxide

• To digest food

• To regulate body temperature

How do amphibians like frogs breathe in water?

• Using lungs

• Using gills

• Through cutaneous (skin) respiration

• Through spiracles

What allows oxygen and carbon dioxide to move in and out of cells during gas exchange?

• Active transport

• Diffusion

• Osmosis

• Filtration

What structure in the human respiratory system is responsible for gas exchange?

• Trachea

• Bronchi

• Alveoli

• Diaphragm

Why do fish continuously open and close their mouths?

• To drink water

• To help with digestion

• To force water over their gills for oxygen absorption

• To regulate their body temperature

How do earthworms perform gas exchange?

• Through their lungs

• Through their skin

• Through their gills

• Through their spiracles

What role do red blood cells play in gas exchange?

• They produce oxygen

• They carry oxygen to body tissues and remove carbon dioxide

• They break down oxygen

• They store carbon dioxide

Which of the following animals uses countercurrent exchange to maximize oxygen absorption?

• Mammals

• Birds

• Fish

• Reptiles