Respiration in Plants MCQ Class 11 Biology
Please refer to Chapter 14 Respiration in Plants MCQ Class 11 Biology with answers below. These multiple-choice questions have been prepared based on the latest NCERT book for Class 11 Biology. Students should refer to MCQ Questions for Class 11 Biology with Answers to score more marks in Grade 11 Biology exams. Students should read the chapter Respiration in Plants and then attempt the following objective questions.
MCQ Questions Class 11 Biology Chapter 14 Respiration in Plants
The Respiration in Plants MCQ Class 11 Biology provided below covers all important topics given in this chapter. These MCQs will help you to properly prepare for exams.
Question. In glycolysis, which of the molecules undergoes splittng to produce 2 isomers of each other.
(a) Fructose. 1, 6 diphosplhale
(b) 1. 3, diPGA
(C) Glucose
(d) PEP
Answer
C
Question. During synthesis of a glucose molecule, ATP and NADPH consumed are respectively
(a) 15 and 12
(b) 12 and 8
(c) 30 and 20
(d) 18 and 12
Answer
D
Question. Which of the following biomolecules is common to respiration-mediated breakdown of fats, carbohydrates and proteins?
(a) Glucose -6-phosphate
(b) Fructose 1,6-bisphosphate
(c) Pyruvic acid
(d) Acetyl Co-A
Answer
D
Question. A connecting link between TCA cycle and nitrogen metabolistm is____
(a) Pyruvic acid
(b) a-ketoglutaric acid
(C) OAA
(d) Citric acid
Answer
C
Question. Chioroplast DNA or ct DNA is
(a) Naked
(b) Circular
(c) Single stranded
(d) All of these
Answer
D
Question. The number of substrate level of phosphorylations in one turn of citric acid cycle is
(a) One
(b) Two
(c) Three
(d) Four
Answer
A
Question. Which is a mobile e-carrier in ETS in mitochondria?
(a) Cyt C
(b) Cytc1
(c) Cyt a3
(d) all off these
Answer
B
Question. glycolysis ts regulated by_______
(a) phosphofrutokinase
(b) ATP/AMP ratio
(c) Ratio of NAD/NADH
(d) All of these
Answer
B
Question. 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
Answer
D
Question. The TCA cycle starts with the condensation of acetyl group with
(a) Oxaloacetic acid
(b) Water to yield citric acid
(c) (a) and (b) Both
(d) None of these
Answer
C
Question. The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that Adenosine Triphosphate ATP is formed because
(a) high energy bonds are formed in mitochondrial proteins
(b) ADP is pumped out of the matrix into the intermembrane space
(c) a proton gradient forms across the inner membrane
(d) there is a change in the permeability of the inner mitochondrial membrane toward Adenosine Diphosphate ADP
Answer
C
Question. In ETS, the nurmber of proton pumps when FADH2 donates e- is____
(a) 3
(b) 2
(C) 4
(d) 1
Answer
A
Question. All reactions of TCA cycle occur in matrix of mitochondria except_________
a) Oxidation of Malate
(b) Reduction of FADD
(c) Decarboxylation of oxalo succinic acid
(d) Break down of malic acid
Answer
A
Question. The net gain of ATP during glycolysis is
(a) 4
(b) 8
(c) 2
(d) 6
Answer
B
Question. Oxidative phosphorylation is production of
(a) ATP in photosynthesis
(b) NADPH in photosynthesis
(c) ATP in respiration
(d) NADH in respiration
Answer
C
Question. In which one of the following processes CO2 is not released?
(a) Aerobic respiration in plants
(b) Aerobic respiration in animals
(c) Alcoholic fermentation
(d) Lactate fermentation
Answer
D
Question. The meeting ground of all food stutfs is__________
(a) Pyruvic acid
(b) Citric acid
(c) Acetyl CoA
(d) All of these
Answer
A
Question. ETC poisons are________
(a) Cyanide
(b) Rotenone
(C) Barbituratess
(d) All of these
Answer
C
Question. 1 molecule of acetyl Co-A produces________
(a) 15 ATP
(b) 14 ATP
(c) 12 ATP
(d) 18 ATP
Answer
B
Question. Maximum amount of energy/ATP is liberated on oxidation of:
(a) fats
(b) proteins
(c) starch
(d) vitamins
Answer
A
Question. Cytochromes are concerned with
(a) Protein synthesis
(b) Cellular digestion
(c) Cell division
(d) Cell-respiration
Answer
D
Question. The co- factor of succinic dehydrogenase is ________
(a) NADP
(b) FAD
(c) TPP
(d) NAD
Answer
C
Question. How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation of one mole of glucose to CO2 and H2O yields 686 kcal and the useful chemical energy available in the high energy phosphate bond of one mole of ATP is 12 Kcal?
(a) Two
(b) Thirty
(c) Fifty seven
(d) One
Answer
C
Question. Major fraction of CO2 released during cellular respiration is transported in blood through the lungs in the form of
(a) Free CO2
(b) HCO3
(c) H2 CO3
(d) In combination with Hb CO2+
Answer
C
Question. Chioroplast DNA or ct DNA is
(a) Naked
(b) Circular
(c) Single stranded
(d) All of these
Answer
D
Question. Green plants convert solar energy into chemical energy of organic matter was proved by
(a) Van Mayer
(b) Lavoisier
(c) Joseph Priestly
(d) Semebier
Answer
A
Question. The complete oxidation of pyruvate take place in
(a) cell cytoplasm
(b) inner mitochondrial membrane
(c) mitochondrial matrix
(d) nucleus
Answer
C
Question. When one glucose molecule is completely oxidised, it changes:
(a) 36 ADP molecules into 36 ATP molecules
(b) 38 ADP molecules into 38 ATP molecules
(c) 30 ADP molecules into 30 ATP molecules
(d) 32 ADP molecules into 32 ATP molecules
Answer
B
Question. If a photosvnthesising plant releases oxygen containing more amount of lsO, it is concluded that the plant has been supplied with
(a) 18O from 18 CO2
(b) 18O from 18 CO2
(c) 18O from H2 18O
(d) .None of these
Answer
C
Question. First product of photorespiration is
(a) Glycolate
(b) Glycine
(c) Glvceine
(d) Phosphoglycolate
Answer
D
Question. Respiratory Quotient RQ value of tripalmitin is:
(a) 0.09
(b) 0.9
(c) 0.7
(d) 0.007
Answer
C
Question. NADH produced in the mitochondrial matrix during citric acid cycle are oxidised by an NADH dehydrogenase
(a) Complex I
(b) Complex II
(c) Complex III
(d) Complex IV
Answer
A
Question. The universal hydrogen acceptor is
(a) NAD
(b) ATP
(c) Co-A
(d) FMN
Answer
A
Question. Green plants trap light energy and convert it into chemical energy that is stored in the bonds of carbohydrates like ………., ………… and ………….
Answer
glucose, sucrose, starch
Question. ………… is favoured substrate for respiration.
Answer
Glucose
Question. ATP is utilised at two steps: first in the conversion of ………… into glucose 6-phosphate and second in the conversion of ………….. 6- phosphate to fructose 1, 6-diphosphate.
Answer
glucose, fructose
Question. In stems, the ‘…………..’ cells are organised in thin layers in and beneath the bark.
Answer
living
Question. For the complete oxidation of glucose to O2 and CO2, however, organisms adopt Kreb’s cycle which is also called as aerobic respiration. This requires CO2 supply.
Answer
False
Question. Only during photosynthesis are large volumes of gases exchanged and each leaf is well adapted to take care of its own needs during these periods.
Answer
True
Question. NADH is oxidised to NAD– rather slowly in fermentation, however the reaction is very vigorous in case of aerobic respiration.
Answer
True
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