We have compiled the NCERT MCQ Questions for Class 11 Biology Chapter 14 Respiration in Plants with Answers Pdf free download covering the entire syllabus. Practice MCQ Questions for Class 11 Biology with Answers on a daily basis and score well in exams. Refer to the Respiration in Plants Class 11 MCQs Questions with Answers here along with a detailed explanation.
Respiration in Plants Class 11 MCQs Questions with Answers
Question 1.
Maximum amount of energy/ATP is liberated on oxidation of:
(a) fats
(b) proteins
(c) starch
(d) vitamins
Answer
Answer: (a) fats
Question 2.
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
Answer: (b) 38 ADP molecules into 38 ATP molecules
Question 3.
Glycolysis takes place in
(a) Cytoplasm
(b) Chloroplast
(c) Ribosome
(d) Mitochondria
Answer
Answer: (a) Cytoplasm
Question 4.
Most of the energy of the carbohydrates is released by oxidation when
(a) Pyruvic acid is converted into CO2 and H2O
(b) Pyruvic acid is converted into acetyl Co-A
(c) Sugar is converted into pyruvic acid
(d) Glucose is converted into alcohol and CO2
Answer
Answer: (a) Pyruvic acid is converted into CO2 and H2O
Question 5.
ATP is injected in cyanide poisoning because it is:
(a) necessary for cellular functions
(b) necessary for Na+ – K+ pump
(c) Na+ – K+ pump operates at the cell membranes
(d) ATP breaks down cyanide
Answer
Answer: (a) necessary for cellular functions
Question 6.
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
Answer
Answer: (d) Citric acid
Question 7.
Number of oxygen atoms required for aerobic oxidation of one pyruvate
(a) 10
(b) 8
(c) 5
(d) 12
Answer
Answer: (a) 10
Question 8.
The TCA cycle is named after
(a) Robert Emerson
(b) Melvin Calvin
(c) Embden
(d) Hans Krebs
Answer
Answer: (d) Hans Krebs
Question 9.
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
Answer
Answer: (b) Mitochondrial matrix
Question 10.
Energy obtained by a cell from catabolic reaction is stored immediately in the form of
(a) Glucose
(b) Pyruvic acid
(c) ADP
(d) ATP
Answer
Answer: (d) ATP
Question 11.
Oxidative phosphorylation is production of
(a) ATP in photosynthesis
(b) NADPH in photosynthesis
(c) ATP in respiration
(d) NADH in respiration
Answer
Answer: (c) ATP in respiration
Question 12.
The net gain of ATP during glycolysis is
(a) 4
(b) 8
(c) 2
(d) 6
Answer
Answer: (b) 8
Question 13.
Complete oxidation of 1 gm mol of glucose gives rise to
(a) 6860000 cals
(b) 686000 cals.
(c) 68600 cals.
(d) 6860 cals.
Answer
Answer: (b) 686000 cals.
Question 14.
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
Answer
Answer: (d) Glykos and lysis
Question 15.
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.
Answer
Answer: (d) The intermediate compound which links glycolysis with the Krebs cycle is malic acid.
Question 16.
End-product of citric acid/Krebs cycle is
(a) Citric acid
(b) CO2 + H2O
(c) Lactic acid
(d) Pyruvic acid
Answer
Answer: (b) CO2 + H2O
Question 17.
Oxidative phosphorylation involves simultaneous oxidation and phosphorylation to finally form:
(a) pyruvate
(b) NADP
(c) DPN
(d) ATP
Answer
Answer: (d) ATP
Question 18.
The respiratory ratio of protein is
(a) 0.2
(b) 0.9
(c) 1.0
(d) 0.7
Answer
Answer: (b) 0.9
Question 19.
In which of the following do the two names refer to one and the same thing?
(a) Krebs cycle and Calvin cycle
(b) Citric acid cycle and Calvin cycle
(c) Tricarboxylic acid cycle and citric acid cycle
(d) Tricarboxylic acid cycle and urea cycle
Answer
Answer: (c) Tricarboxylic acid cycle and citric acid cycle
Question 20.
Respiratory quotient (R.Q.) for fatty acid is:
(a) > 1
(b) < 1
(c) 1
(d) 0
Answer
Answer: (b) < 1
Question 21.
The universal hydrogen acceptor is
(a) NAD
(b) ATP
(c) Co-A
(d) FMN
Answer
Answer: (a) NAD
Question 22.
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
Answer
Answer: (b) 2 are produced outside mitochondria and 34 inside mitochondria
Question 23.
The net gain of ATP molecules by glycolysis is
(a) Zero
(b) Two
(c) Four
(d) Eight
Answer
Answer: (b) Two
Question 24.
In anaerobic respiration seeds respire
(a) In presence of O2
(b) In presence of CO2
(c) In absence of O2
(d) In absence of CO2
Answer
Answer: (c) In absence of O2
Question 25.
End product of glycolysis is:
(a) acetyl CoA
(b) pyruvic Acid
(c) glucose 1-phosphate
(d) fructose 1-phosphate
Answer
Answer: (b) pyruvic Acid
Question 26.
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
Answer: (d) acetyl CoA
Question 27.
Glycolysis is conversion of
(a) Glucose to citric acid
(b) Glucose to fructose
(c) Glucose to pyruvic acid
(d) Glucose to malic acid
Answer
Answer: (c) Glucose to pyruvic acid
Question 28.
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
Answer
Answer: (b) Glycolysis
Question 29.
Cytochromes are concerned with
(a) Protein synthesis
(b) Cellular digestion
(c) Cell division
(d) Cell-respiration
Answer
Answer: (d) Cell-respiration
Question 30.
Common immediate source of energy in cellular activity is
(a) glucose
(b) aldohexose
(c) ATP
(d) NAD
Answer
Answer: (c) ATP
Question 31.
The following is required both by the process of respiration and photosynthesis
(a) Carbohydrates
(b) Sunlight
(c) Chlorophyll
(d) Cytochromes
Answer
Answer: (d) Cytochromes
Question 32.
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
Answer
Answer: (a) respiratory chain
Hope the information shed above regarding NCERT MCQ Questions for Class 11 Biology Chapter 14 Respiration in Plants with Answers Pdf free download has been useful to an extent. If you have any other queries of CBSE Class 11 Biology Respiration in Plants MCQs Multiple Choice Questions with Answers, feel free to reach us so that we can revert back to us at the earliest possible.