Question

List in tabular form the two differences between aerobic and anaerobic respiration. Why do we feel cramps in our muscles during sudden physical activity ?

CBSE Class X Science LA (5 Marks)

Answer 1

AEROBIC resp. - 1. Occurs in presence of oxygen 2. Glucose is the final product.
ANAEROBIC resp. - 1. Occurs in the absence of oxygen 2. Final product is Lactic acid

We feel pain(cramps) in muscles usually after heavy exercises because our muscles had gone through anaerobic respiration due to lack of oxygen which results in formation of lactic acid which causes cramps

Answer 2

Difference between Aerobic and Anaerobic respiration :

Aerobic Respiration

occurs in presence of oxygen

releases large amount of energy

Anaerobic Respiration:

occur in the absence of oxygen

releases relatively small amount of energy

During sudden physical activity, there is a lack of oxygen in our muscular cells, the pathway for the breakdown of pyruvate into lactic acid that develops camps in the body.