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प्रश्न
Give scientific reason.
Some higher plants, animals and aerobic microorganisms also sometimes perform anaerobic respiration.
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उत्तर
- Respiration is an energy-yielding process and takes place by the oxidation of foodstuffs.
- Higher plants and animals require oxygen in order to respire aerobically.
- However, in conditions where oxygen is depleted, these organisms perform anaerobic respiration to obtain energy.
- Glucose is incompletely oxidized and a comparatively lesser amount of energy is obtained through anaerobic respiration.
Therefore, sometimes, higher plants, animals, and aerobic microorganisms also perform anaerobic respiration.
संबंधित प्रश्न
Redraw the flowchart with corrections. Explain in brief the process of obtaining energy through oxidation of carbohydrates, lipids and proteins.

At the end of glycolysis, ______ molecules are obtained.
We get ______ energy from carbohydrates.
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Answer the following questions.
a) Why some living organisms have to perform anaerobic respiration?
b) Give examples of such living organisms.
c) What are the two steps of anaerobic respiration?
Give scientific reason.
We feel exhausted after exercising.
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State two methods of cellular respiration.
Identify the given reaction and explain it.

What are the main steps of anaerobic respiration?
Which hormones are formed from the fatty acids?
Why is water an essential nutrient?
Complete the following concept map.

Identify the statement that correctly describes phosphorylation.
During which of the following steps of glycolytic pathway ATP is directly formed?
- 3 - phospboglyceric acid to 2 phosphoglycerate
- Phosphoenolpyruvate to pyruvic acid
- 1, 3 - bisphosphoglyceric acid to 3 phosphoglycerate
- Fructose 1, 6 - bisphospbate to glyceraldehyde - 3 - phosphate
Substrate level phosphorylation takes place in ______.
Where does the oxidative phosphorylation occur?
Which of the following statement is incorrect about ATP?
The common immediate source of energy in cellular activity is ______.
