Grade 7 Unit 1: Respiration End of unit quiz

1. Which of the following is NOT a product of aerobic respiration?

• a) Carbon dioxide

• b) Water

• c) Glucose

• d) Energy

2. What is the primary gas exchanged during inhalation and exhalation?

• a) Oxygen

• b) Nitrogen

• c) Carbon dioxide

• d) Hydrogen

Which organ is responsible for inhaling and exhaling?

• Lungs

• Heart

• Liver

• Stomach

During aerobic respiration, glucose reacts with oxygen to produce:

• Carbon Dioxide and water

• Nitrogen gas

• Hydrogen peroxide

• Sulfuric acid

What is the function of red blood cells in our body?

• To fight against infections

• To produce energy through photosynthesis

• To regulate body temperature

• To carry oxygen to body tissues

6. Which component of blood helps in clotting when we get injured?

• White blood cells

• Platelets

• Red blood cells

• Plasma

The process by which oxygen enters the bloodstream from the lungs is called

• Inhalation

• Exhalation

• Diffusion

• Osmosis

Where does most of the exchange between oxygen and carbon dioxide occur in our lungs?

• Bronchi

• Alveoli

• Trachea

• Diaphragm

Which of the following is NOT a waste product of aerobic respiration?

• Carbon dioxide

• Water

• Glucose

• Heat

During exhalation, which gas is expelled from our lungs? (From the body)

• Oxygen

• Nitrogen

• Carbon dioxide

• Hydrogen