Grade 8 - Aerobic Respiration

Cells use oxygen to release the energy stored in a type of sugar called ____________________.

• sucrose

• glucose

• fructose

• maltose

Which food component provides humans with glucose?

• protein

• fibre

• lipids

• carbohydrates

Aerobic means

• requiring from water.

• requiring from air.

• requiring from plasma.

Which gas is used to release energy from substances in organisms?

• carbon dioxide

• oxygen

• nitrogen

• argon

Which one of the following is the correct word equation for aerobic respiration.

• oxygen + glucose -------> carbon monoxide + water

• oxygen + glucose -------> carbon dioxide + water

• oxygen + glucose -------> carbonate + water

• oxygen + glucose -------> nitrogen oxide + water

In the following equation, which elements are reactants?

oxygen + glucose -------> carbon dioxide + water

• water and carbon dioxide

• carbon dioxide

• glucose

• oxygen and glucose

In the following equation, which elements are products?

oxygen + glucose -------> carbon dioxide + water

• water

• oxygen and glucose

• carbon dioxide and water

• oxygen

Which one of the following is true for aerobic respiration?

• some of the released energy keeps the body warm.

• some of the released energy lowers the body temperature.

• some of the released energy is wasted.

Where does respiration takes place in human body?

• only in heart.

• only in muscles.

• only in brain.

• all parts of human body.

Which one of the following is produced as a waste product during aerobic respiration?

• oxygen

• glucose

• carbon dioxide

• energy