Respiration

Question 1

What type of reaction is cellular respiration? How often does this occur in living cells?

Answer 1

Exothermic reactions happen continuously in living cells

Question 2

Aerobic respiration summarised:

Answer 2

Glucose + Oxygen —> C02 + Water

Energy transfered to the environment

Question 3

What does the energy transferred supply?

Answer 3

All the energy needed for living processes

Question 4

Effects of exercise on respiration and why

Answer 4

Increases:
breathing rate as more oxygen is needed,
heart rate oxygen needs to be pumped faster around the body,
blood movement as more oxygen needs to be delivered to the muscles

Question 5

Anaerobic respiration

Answer 5

Respiration without any oxygen

Question 6

Comparison between aerobic and anaerobic respiration

Answer 6

Aerobic respiration includes oxygen however anaerobic respiration does not. Aerobic respiration produces carbon dioxide and water from using glucose and oxygen however anaerobic respiration only uses glucose and produces lactic acid that builds up in the muscles

Question 7

Comparison of anaerobic respiration animals, bacteria and yeast

Answer 7

Animals such as humans and bacteria cells anaerobic restoration produces lactic acid. In yeast cells it produces ethanol and carbon dioxide