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Karnataka Board PUCPUC Science Class 11

Pyruvic acid is the end product of glycolysis. What are the three metabolic products of pyruvic acid produced under aerobic and anaerobic conditions?

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Question

Pyruvic acid is the end product of glycolysis. What are the three metabolic products of pyruvic acid produced under aerobic and anaerobic conditions? Write their name in the space provided in the diagram.

Diagram
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Solution

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Chapter 14: Respiration in Plants - Exercises [Page 80]

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NCERT Exemplar Biology Exemplar [English] Class 11
Chapter 14 Respiration in Plants
Exercises | Q 3. | Page 80

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RELATED QUESTIONS

Describe the process of glycolysis with the help of schematic representation.


Distinguish between the following: 

Glycolysis and Fermentation


Following reactions occur during glycolysis. Arrange them in the order of their occurrence in the glycolytic pathway.

  1. Dihydroxy acetone phosphate → Glyceraldehyde-3-phosphate
  2. Fructose-6-phosphate → Fructose-1, 6-bisphosphate
  3. Phosphoenolpyruvate → Pyruvic acid
  4. 2-Phosphoglycerat → Phosphoenolpyruvate
  5. Glucose-6-phosphate → Fructose-6- phosphate 
  6. 1,3-bisphosphoglyceric acid → 3- phosphoglyceric acid

In glycolysis, phosphorylation reaction leads to conversion of glucose to glucose-6-phosphate. Identify the number of carbon atoms that are added to glucose to make it glucose-6-phosphate.


How many oxygen molecules are utilized in glycolysis?


During glycolysis, cleavage of fructose 1, 6-diphosphate occurs in presence of enzyme ______


How many ATP molecules are generated when one molecule of reduced coenzyme NADH2 is re-oxidized during the respiratory chain? 


During glycolysis of one molecule of glucose, how many ADP molecules are phosphorylated?


During glycolysis of aerobic respiration, how many times oxidation of substrate occurs?


Which process does the following equation represent? 

\[\ce{C6H12O6 + 2NAD + 2ADP + 2Pi → CH3 - CO - COOH + 2 NADH2 + 2 ATP}\]


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The energy yield in terms of ATP is higher in aerobic respiration than anaerobic respiration. Why anaerobic respiration occurs even in organisms that live in aerobic condition like human beings and angiosperms?


The figure given below shows the steps in glycolysis. Fill in the missing steps A, B, C, D and also indicate whether ATP is being used up or released at step E?


Formation of acetyl CoA from pyruvic acid takes place by ______.


The first three steps of glycolysis are called as ______.


In glycolysis, electrons are removed by ______.


The process in which glucose is broken down into pyruvic acid is ______.


Assertion A: ATP is used at two steps in glycolysis.

Reason R: First ATP is used in converting glucose into glucose-6-phosphate and second ATP is used in conversion of fructose-6-phosphate into fructose-1-6-diphosphate.

In the light of the above statements, choose the correct answer from the options given below:


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