Which of the following is true about glycolysis?

Glycolysis takes place in the mitochondria.

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Glycolysis is the last step in aerobic respiration.

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One glucose molecule is broken down to 3 pyruvic acid molecules.

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Glycolysis is a anaerobic process.

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Solution

The correct option is D Glycolysis is a anaerobic process.
Glycolysis is the first step in both aerobic and anaerobic respiration. None of its steps involve the use of oxygen to form the end product - pyruvic acid. It takes place in the cytoplasm. 2 molecules of pyruvic acid are formed from one glucose molecule.
However, immediately upon completing glycolysis, the cell must continue respiration in either an aerobic or anaerobic direction; this choice is made based on the circumstances of the particular cell.

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Similar questions

Q. Which combination of statement is correct?
(i) In aerobic respiration , glycolysis occurs in the cytoplasm of a cell.
(ii) In aerobic respiration, glycolysis cannot occur without the presence of oxygen.
(iii) In the process of glycolysis, glucose molecules are oxidised to produce the molecules of pyruvate.
(iv) In aerobic respiration , glycolysis occurs in the mitochondria of a cell.
(v) In aerobic respiration, oxidation of pyruvate molecules to produce

C O_{2}, H_{2} O

and energy, occurs in mitochondria.

Q. Assertion :During aerobic respiration pyruvic acid formed as a result of glycolysis undergoes phosphorylation reaction to form acetyl CoA. Reason: There is net gain of 18 ATP molecules during aerobic respiration of one molecule of glucose.

Q. Which of the following statements is/are correct?
i. Glycolysis is observed in aerobic organisms only.
ii. Sucrose is converted to two glucose molecules with the help of invertase enzyme.
iii. Glycolysis results in complete oxidation of glucose into pyruvic acid.

Out of 38 molecules of ATP produced after aerobic respiration of glucose, the break up in ATP production in glycolysis (P), pyruvic acid to acetyl CoA formation (Q) and Krebs cycle (R) is

Glycolysis is the breakdown of glucose to pyruvic acid. How many molecules of pyruvic acid are formed from one molecule of glucose?

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