Respiration

• 1 only

• 1 and 3

• 2 only

• 3 only

What are the products of aerobic respiration in a muscle?

• heat, lactic acid and water

• lactic acid, heat and carbon dioxide

• water, carbon dioxide and heat

• carbon dioxide, water and ethanal

Which word equation shows anaerobic respiration in yeast?

• glucose → ethanol

• glucose → ethanol + carbon dioxide

• glucose → lactic acid

• glucose → lactic acid + carbon dioxide

Which process does not result in an overall loss of energy from the organism?

• a boy running a hundred metres

• photosynthesis in a green plant

• respiration in an animal

• the germination of a seed of a flowering plant

Which process does not require energy?

• focussing of eye

• growth of hair

• secretion of sweat

• tissue respiration

• have gone down by the same amount in both tubes.

• be higher in tube 1 than in tube 2.

• be higher in tube 2 than in tube 1.

• have gone up by the same amount in both tubes.

• produces carbon dioxide.

• releases energy.

• requires glucose.

• uses up oxygen.

• A

• B

• C

• D

• carbon dioxide.

• food.

• nitrate.

• oxygen.

An experiment was setup as shown.

Flask 1 and 2 contains lime water. Air is pumped through the flasks.

• A

• B

• C

• D