MCQ Questions for Class 11 Biology Chapter 14 Respiration in Plants with Answers

MCQ Questions for Class 11 Biology Chapter 14 Respiration in Plants with Answers

Check the below NCERT MCQ Questions for Class 11 Biology Chapter 14 Respiration in Plants with Answers Pdf free download. MCQ Questions for Class 11 Biology with Answers were prepared based on the latest exam pattern. We have provided Respiration in Plants Class 11 Biology MCQs Questions with Answers to help students understand the concept very well.


Q1. End-product of citric acid/Krebs cycle is​

(a) Citric acid
(b) CO2 + H2O
(c) Lactic acid
(d) Pyruvic acid

(b) CO2 + H2O


Q2. Out of 38 ATP molecules produced per glucose, 32 ATP molecules are formed from NADH/FADH2 in:

(a) respiratory chain
(b) Krebs cycle
(c) oxidative decarboxylation
(d) EMP

(a) respiratory chain


Q3. Which of the following is not correct about the Krebs cycle?

(a) It starts with a six-carbon compound.
(b) It occurs in mitochondria.
(c) It is also called the citric acid cycle.
(d) The intermediate compound which links glycolysis with the Krebs cycle is malic acid

(d) The intermediate compound which links glycolysis with the Krebs cycle is malic acid


Q4. The following is required both by the process of respiration and photosynthesis

(a) Carbohydrates
(b) Sunlight
(c) Chlorophyll
(d) Cytochromes

(d) Cytochromes


Q5. The term ‘Glycolysis’ has originated from the Greek words

(a) Glucose and lysis
(b) Glyco and lysis
(c) Glycose and lysis
(d) Glykos and lysis

(d) Glykos and lysis


Q6. Common immediate source of energy in cellular activity is

(a) glucose
(b) aldohexose
(c) ATP
(d) NAD

(c) ATP


Q7. Complete oxidation of 1 gm mol of glucose gives rise to

(a) 6860000 cals
(b) 686000 cals.
(c) 68600 cals.
(d) 6860 cals.

(b) 686000 cals.


Q8. Cytochromes are concerned with

(a) Protein synthesis
(b) Cellular digestion
(c) Cell division
(d) Cell-respiration

(d) Cell-respiration


Q9. The net gain of ATP during glycolysis is

(a) 4
(b) 8
(c) 2
(d) 6

(b) 8


Q10. Incomplete oxidation of glucose into pyruvic acid with several intermediate steps is known as

(a) TCA-pathway
(b) Glycolysis
(c) HMS-pathway
(d) Krebs cycle

(b) Glycolysis


Q11. Oxidative phosphorylation is production of

(a) ATP in photosynthesis
(b) NADPH in photosynthesis
(c) ATP in respiration
(d) NADH in respiration

(c) ATP in respiration


Q12. Glycolysis is conversion of

(a) Glucose to citric acid
(b) Glucose to fructose
(c) Glucose to pyruvic acid
(d) Glucose to malic acid

(c) Glucose to pyruvic acid


Q13. Energy obtained by a cell from catabolic reaction is stored immediately in the form of

(a) Glucose
(b) Pyruvic acid
(c) ADP
(d) ATP

(d) ATP


Q14. Connecting link between glycolysis and Krebs cycle is/before entering Krebs cycle pyruvate is changed to:

(a) oxaloacetate
(b) PEP
(c) pyruvate
(d) acetyl CoA

(d) acetyl CoA


Q15. Most of the enzymes of the TCA cycle are present in

(a) Intermembrane space of mitochondria
(b) Mitochondrial matrix
(c) Inner membrane of mitochondria
(d) Cytoplasm

(b) Mitochondrial matrix


Q16. Incomplete oxidation of glucose into pyruvic acid with several intermediate steps is know as

(a) TCA pathway
(b) Glycolysis
(c) Hms pathway
(d) Glycolysis

(b) Glycolysis


Q17. End product of glycolysis is

(a) acetyl Coenzyme A
(b) PEP
(c) pyruvate
(d) OAA

(c) pyruvate


Q18. Respiratory enzymes are located in

(a) mitochondrial matrix
(b) Cristae
(c) perimitochondrial space
(d) outer membrane

(b) Cristae


Q19. Respiratory quotient of carbohydrates is

(a) 0.9
(b) 1.2
(c) 1
(d) 0

(c) 1


Q20. One molecule of glucose yields _ ATP molecules in aerobic respiration.

(a) 2
(b) 16
(c) 38
(d) 42

(c) 38


Q21. Acetyl CoA combine with oxalo-acetate in presence of condensing enzyme citrate synthase to form 6-C compound called

(a) Malic acid
(b) Tartaric acid
(c) Pyruvic acid
(d) Citric acid

(d) Citric acid


Q22. Out of 36 ATP molecules produced per glucose molecule during respiration:

(a) 2 are produced outside glycolysis and 34 during respiratory chain
(b) 2 are produced outside mitochondria and 34 inside mitochondria
(c) 2 during glycolysis and 34 during Krebs cycle
(d) All are formed inside mitochondria

(b) 2 are produced outside mitochondria and 34 inside mitochondria


MCQ Questions for Class 11 Biology with Answers Chapter Wise


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