Ask a Teacher

Search



1.What is Pyruvate? 2.One example of aerobic & anaerobic respiration. 3.One example of Catabolic & anabolic process.
Pyruvate is a derivative of pyruvate acid, and plays a role in glycolysis, or sugar metabolism. While the human body naturally synthesizes this compound from glucose, it also occurs naturally in red wine, dark beer, red apples and other foods.

Anaerobic respiration is a type of respiration that does not use oxygen. It is used when there is not enough oxygen for aerobic respiration. It can be summarised by the following equation:
glucose ? lactic acid (+ energy released)

This type of respiration may be used when, for example, an animal is being chased by a predator.
Anaerobic respiration in plant cells and some microorganisms (such as yeast) produces ethanol and carbon dioxide, as opposed to lactic acid. It can be summarised by the following equation:

glucose ? ethanol + carbon dioxide (+ energy released)


In Aerobic respiration, the glucose food is completely broken down into carbon dioxide and water by oxidation. Aerobic respiration produces a considerable amount of energy for use by the organism which gets stored in the ATP molecules.
1 molecule of glucose (food) produces 38 energy-rich ATP molecules. Mitochondria are the sites of aerobic respiration in the cells.

Anabolism is a constructive phase of metabolism. Example: Protein synthesis, Glycogen synthesis.

Catabolism is a destructive phase of metabolism. Example: Glycogenolysis, Glycolysis.


comments powered by Disqus