Question

Choose the incorrect statement about Glycolysis.

(a) Glucose is converted to carbon dioxide and water.

(b) Takes place in cytoplasm.

(c) Doesn’t require oxygen.

(d) The first phase of cellular respiration.​

Answer 1

Answer:

(c) Doesn’t require oxygen. ✔✔✌⚡

Explanation:

Answer by @MissMiracle12 ❤

Answer 2

Answer:

Glycolysis is a series of reactions that extract energy from glucose by splitting it into two three-carbon molecules called pyruvates. Therefore, the incorrect statement about Glycolysis is (a) Glucose is converted to carbon dioxide and water.

Explanation:

Glycolysis is a series of reactions that break down glucose into two three-carbon molecules known as pyruvates and extract energy from them.

In living organisms, glycolysis is the first stage in the cellular respiration process. Glycolysis does not require oxygen, hence it is found in many anaerobic (non-oxygen-using) organisms.

Glycolysis has ten steps:-

Step 1

• By the activity of the enzyme hexokinase, the phosphate group is added to glucose in the cell cytoplasm.
• ATP transfers a phosphate group to glucose, resulting in glucose. 6-phosphate.

Step 2

The enzyme phosphoglucomutase converts glucose-6-phosphate to fructose-6-phosphate.

Step 3

The second ATP molecule adds a phosphate group to fructose 6-phosphate and converts it to fructose 1,6-bisphosphate through the activity of the enzyme phosphofructokinase.

Step 4

Aldolase converts fructose 1,6-bisphosphate into the isomers glyceraldehyde 3-phosphate and dihydroxyacetone phosphate.

Step 5

Triose-phosphate isomerase converts dihydroxyacetone phosphate to glyceraldehyde 3-phosphate, which serves as the following step in glycolysis.

Step 6

This stage is subjected to two reactions:

• The enzyme glyceraldehyde 3-phosphate dehydrogenase forms NADH + H+ by transferring one hydrogen molecule from glyceraldehyde phosphate to nicotinamide adenine dinucleotide.

• Glyceraldehyde 3-phosphate dehydrogenase forms 1,3-bisphosphoglycerate by adding a phosphate to the oxidized glyceraldehyde phosphate.

Step 7

With the aid of phosphoglycerokinase, phosphate is transferred from 1,3-bisphosphoglycerate to ADP to produce ATP. At the completion of this process, two molecules of phosphoglycerate and ATP are obtained.

Step 8

Phosphate is transferred from the third to the second carbon of both phosphoglycerate molecules by the enzyme phosphoglyceromutase, resulting in two molecules of 2-phosphoglycerate.

Step 9

The enzyme enolase removes a water molecule from 2-phosphoglycerate to produce phosphoenolpyruvate.

Step 10

Pyruvate kinase converts phosphoenolpyruvate to pyruvate and ATP by transferring a phosphate from phosphoenolpyruvate to ADP. Two molecules of pyruvate and two molecules of ATP are the end products.

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