i) Differentiate aerobic and anaerobic respiration.
ii) Name some organisms that use anaerobic mode of respiration.
iii) When does anaerobic respiration occur in human beings?
Answers
Answer:
I) ☆in Aerobic respiration oxygen is present when this form of respiration takes place.Gases are exchanged in this form of respiration.
It can be found in the cytoplasm and the mitochondria. Glucose breaks down into carbon dioxide and water.All higher organisms such as mammals have this type of respiration
☆ in anaerobic Respiration Oxygen is absent when this form of respiration takes place.Gases are not exchanged in this form of respiration.It can be found only in the cytoplasm.Glucose breaks down into ethyl alcohol, carbon dioxide and energy.Lower organisms such as bacteria and yeast use this type. In other organisms, it occurs during heavy activities.
ii)yeast, bacteria
iii) Anaerobic respiration in humans occurs in muscles during strenuous exercise when sufficient oxygen is not available. It results in the build-up of lactic acid leading to muscle fatigue. When there is an inadequate supply of oxygen during intense exercise, muscles derive energy from anaerobic respiration.
Less energy is produced in anaerobic respiration due to the partial breakdown of glucose. Pyruvic acid, which is the product of glycolysis is converted into lactic acid by lactate dehydrogenase.
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Answer:
Cellular respiration is a process that takes place inside the cells, where the breakdown of glucose molecules releases energy. The process can be conveniently divided into two categories based on oxygen usage, namely aerobic and anaerobic respiration.
Differences between aerobic and anaerobic respiration
The difference between aerobic and anaerobic respiration is tabulated below.
Aerobic Respiration Anaerobic Respiration
It is the process of cellular respiration that takes place in the presence of oxygen gas. It is the process of cellular respiration that takes place in the absence of oxygen gas.
It involves the exchange of gases between the organism and the outside environment. Exchange of gases is absent.
It can be found in the cytoplasm and the mitochondria It can be found only in the cytoplasm.
Glucose breaks down into carbon dioxide and water. Glucose breaks down into ethyl alcohol, carbon dioxide, and energy
All higher organisms such as mammals have this type of respiration. Lower organisms such as bacteria and yeast use this type.