MCQ ON RESPIRATION IN PLANTS class 11 for NEET

MCQ ON RESPIRATION IN PLANTS class 11 for NEET | RESPIRATION IN PLANTS class 11 | MCQ RESPIRATION IN PLANTS with Answer | Check the below NCERT MCQ question for class 11 Biology chapter 14 based on the RESPIRATION IN PLANTS with Answers.

MCQ on RESPIRATION IN PLANTS class 11 Biology with answers were prepared based on the latest pattern.We have provided class 11 Biology MCQs questions on RESPIRATION IN PLANTS with Answers to help students understand the concept very well.

MCQ RESPIRATION IN PLANTS is useful for NEET / CSIR / UGC / CBSE / ICSE / AIIMS / EXAM / AFMC EXAM / STATE LEVEL MEDICAL EXAM 2022-23

Introduction:-
All of us breathe to live , but why is breathing so essential to life ? What happens when we breathe ? Also , do all living organisms , including plants and microbes , breathe ? If so, how ?
All living organisms need energy for carrying out daily life activities , be it absorption , transport , movement , reproduction or even breathing . Where does all this energy come from ? We know we eat food for energy but how is this energy taken from food ? How is this energy utilised ? Do all foods give the same amount of energy ? Do plants eat ? Where do plants get their energy from ? And micro- organisms – for their energy requirements , do they eat food.

MCQ ON RESPIRATION IN PLANTS class 11 for NEET

1. A molecule of glucose on complete oxidation yields

(a) 36 ATP
(b) 34 ATP
(c) 40 ATP
(d) 42 ATP

Ans (b) 36 ATP

2.End product of glycolysis is

(a) glucose – 1 phosphate
(b) fructose -1 phosphate
(c) pyruvic acid
(d) acetyl Co A

Ans. (c) pyruvic acid

3. Instant source of energy is

(a) amino acids
(b) fat
(c) glucose
(d) sucrose

Ans. (c) glucose

4. The intermediate between glycolysis and TCA cycle is

(a) pyruvic acid
(b) glucose 1-6 diphosphate
(c) oxaloacetate
(d) acetyl – CoA

Ans.(d) acetyl – CoA

5.Krebs cycle begins with

(a) pyruvic acid
(b) glycogen
(c) lysine
(d) glucose

Ans.(a) pyruvic acid

6. In which part of a mitochondria are succinate dehydrogenase and cytochrome oxidase located

(a) matrix
(b) inner membrane
(c) intermembrane space
(d) outer membrane

Ans.(b) inner membrane

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7. Link between glycolysis , Krebs cycle and beta – oxidation of fatty acids or between carbohydrates and fat metabolism is

(a) oxaloacetic acid
(b) succinic acid
(c) citric acid
(d) acetyl CoA

Ans.(d) acetyl CoA

8. The apparatus used to measure rate of respiration and RQ is called

(a) Auxanometer
(b) Potometer
(c) Respirometer
(d) Manometer

Ans.(c) Respirometer

9. Respiratory quotient is maximum when the respiratory substrate is

(a) Fat
(b) Protein
(c) Glucose
(d) Mallic acid

Ans. (d) Mallic acid

10. Respiratory quotient varies with

(a) temperature
(b) respiratory substrate
(c) light and oxygen
(d) respiratory product

Ans. (b) respiratory substrate

11. Out of 38 ATP molecules produced per glucose molecule , 32 are produced from NADH and FADH2 in

(a) Krebs cycle
(b) ETC
(c) oxidative decarboxylation
(d) EMP

Ans.(b) ETC

12. The fermentation products of glucose formed by yeast are

(a) methyl alcohol and CO2
(b) CO2 and H2O
(c) methyl alcohol and H2O
(d) ethyl alcohol and CO2

Ans.(d) Ethyl alcohol and CO2

13. In animal cell , the first phase in glucose break down is

(a) ETS
(b) Krebs cycle
(c) Glycolysis
(d) Fermentation

Ans. (c) Glycolysis

14. Protein is the substrate in the

(a) aerobic respiration
(b) protoplasmic respiration
(c) seedling stage
(d) floating respiration

Ans.(b) protoplasmic respiration

15. Oxidation of NADH2 yields

(a) 3 ATP
(b) 38 ATP
(c) 1 ATP
(d) 2 ATP

Ans. (a) 3 ATP

16. Which of the following are essential for ATP synthesis.

(a) Fe and Mo
(b) N and P
(c) Fe and P
(d) Mg and Mn

Ans.(c) Fe and P

17. Organism used in the industrial preparation of ethanol is

(a) lactobacillus
(b) azotobacter
(c) penicillium
(d) sachharomyces

Ans.(d) sachharomyces

18. Metabolism of one lipid molecule produces

(a) 36 ATP
(b) 38 ATP
(c) 147 ATP
(d) 56 ATP

And.(c) 147 ATP

19. How many ATP molecules are formed in ETS from the reduced nicotinamide adenine dinucleotide generated in one turn cycle of Krebs cycle ?

(a) 3
(b) 6
(c) 9
(d) 12

Ans. (c) 9

20. The correct sequence of electron acceptor in ATP synthesis is

(a) cytochrome a , a3 , b , c
(b) cytochrome b, c, a, a3
(c) cytochrome b , c , a3 , a
(d) cytochrome c, b , a , a3

Ans.(b) cytochrome b , c , a ,a3