Advertisements
Advertisements
Question
Name the site (s) of pyruvate synthesis. Also, write the chemical reaction wherein pyruvic acid dehydrogenase acts as a catalyst.
Solution
Pyruvate is synthesized in the cytoplasm of the cell by the process of glycolysis. 1 molecule of glucose forms 2 molecules of pyruvate through a series of reactions.
Pyruvic acid dehydrogenase catalyses the reaction in which pyruvate forms acetyl Co - A. It requires NAD+, Co-enzyme A and Mg2+ ions for its activity. The reaction is as follows
\[\ce{Pyruvic acid + Co - A + NAD^{+} ->[Mg^{2+}][Pyruvate Dehydrogenase] Acetyl Co - A + NADH + H^+ + Co2 ↑}\]
APPEARS IN
RELATED QUESTIONS
Differentiate between aerobic respiration and fermentation.
What type of repiration takes place in humans?
Answer the following in one word.
What is formed when oxygen combines with hemoglobin?
Match the terms of column A with the statements in column B:
| Column A | Column B |
| (i) Yeast | (a) partial breakdown of food substance. |
| (ii) Glucose | (b) nutrients are oxidized without using molecular oxygen by the process of fermentation. |
| (iii) Anaerobic | (c) is the best organic substrate for respiration. |
| (iv) Glycolysis | (d) the intermediate substance in the breakdown of glucose. |
| (v) Pyruvic acid | (e) the series of changes from glucose to pyruvic acid in respiration. |
Name the following:
The products formed as a result of anaerobic respiration.
Answer the following question.
Which of the following step of aerobic respiration would be omitted when fatty acids are used as respiratory substrate?
Identify X and Yin the following reaction.
\[\ce{Pyruvic acid + CoA + NAD+ \frac{Mg^{2+}}{X} Y + CO2 + NADH + H+}\]
Anaerobic respiration is also called as ______.
Mark the following statement as True or False. Correct the false statement.
Oxygen breaks down glucose outside the cells of organisms.
Mention the important series of events of aerobic respiration that occur in the matrix of the mitochondrion and in the inner membrane of the mitochondrion.
