Respiration Set 1

All India Pre Medical Test (AIPMT)

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This set of Biology Multiple Choice Questions & Answers (MCQs) focuses on Respiration Set 1

Q1 | Substrate in glycolysis is normally
  • Fructose
  • Glucose
  • Pyruvic acid
  • Phosphoglyceric acid
Answer: Glucose
Q2 | Decarboxylation of pyruvic acid results in the formation of
  • Water
  • Acetyl CoA
  • Glucose
  • PGA.
Answer: Acetyl CoA
Q3 | Number of direct ATPs produced in glycolysis is (Gujarat GET Q.B.)
  • 2
  • 4
  • 6
  • 1
Answer: 4
Q4 | Number of reduced coenzymes NADH produced during glycolysis are
  • 1
  • 2
  • 4
  • 6
Answer: 2
Q5 | Net gain of glycolysis is
  • 3 ATP and 1 NADH + H+
  • 2 ATP and 2 NADH + H+
  • 6 ATP and 4 NADH + H+
  • 10 ATP and 6 NADH + H+
Answer: 2 ATP and 2 NADH + H+
Q6 | In respiration, the oxygen is used in
  • Glycolysi
  • Krebs cycle
  • ETS
  • Fermentation
Answer: ETS
Q7 | One molecules of NADH+ H + gives how many ATPs in ETS (Gujarat CETQ.B.)
  • 2 ATP
  • 3 ATP
  • 4 ATP
  • 6 ATP
Answer: 3 ATP
Q8 | Conversion of pyruvic acid to acetyl Co A is called
  • Glycolysi
  • Fermentation
  • ETS
  • Oxidative decarboxylation
Answer: Oxidative decarboxylation
Q9 | Reduction of acetaldehyde gives
  • Methyl alcohol
  • Ethyl alcohol
  • Glycerol
  • All these
Answer: Ethyl alcohol
Q10 | Lactic acid is formed due to the reduction of (Gujarat GET Q.B.)
  • Pyruvic acid
  • Acetaldehyde
  • Malic acid
  • Acetyl CoA
Answer: Pyruvic acid
Q11 | Fermentation is the primary mode of energy production in
  • Higher plant
  • Animals
  • Yeast
  • Algae.
Answer: Yeast
Q12 | Krebs cycle occurs in (Gujarat GET Q.B.)
  • Cytoplasmic matrix
  • Mitochondrial matrix
  • F1 particles
  • All these
Answer: Mitochondrial matrix
Q13 | Krebs cycle is also known as
  • Citric acid cycle
  • TCA cycle
  • Both a and b
  • Calvin cycle
Answer: Both a and b
Q14 | The location of ETS is ;
  • Mitochondria! matrix
  • Cytoplasm
  • Outer mitochondrial membranes
  • Inner mitochondrial membrane
Answer: Inner mitochondrial membrane
Q15 | Krebs cycle starts with the condensation of acetyl CoA with
  • Pyruvic aicd
  • Oxalo-acetic acid
  • Malic acid
  • Citric acid
Answer: Oxalo-acetic acid
Q16 | ?- keto glutaric acid consists of
  • 3 carbon
  • 4 carbons
  • 5 carbons
  • 6 carbons
Answer: 5 carbons
Q17 | Citric acid cycle was proposed by
  • Kreb
  • Calvin
  • Mendel
  • Lavosier
Answer: Kreb
Q18 | Direct synthesis of ATPs in one turn of Krebs cycle is
  • l
  • 2
  • 3
  • 4
Answer: l
Q19 | Number of NADH + H+, formed in one turn of Krebs cycle is
  • 2
  • 4
  • 6
  • 5
Answer: 4
Q20 | Number of FADH2 formed in one turn of Krebs cycle is
  • l
  • 2
  • 3
  • 4
Answer: l
Q21 | Number of ATPs which can be generated by one FADH2 in ETS are (Gujarat GET Q.B.)
  • l
  • 2
  • 3
  • 4
Answer: 2
Q22 | Formation of ATPs in mitochondria is known as
  • Oxidative phosphorylation
  • Cyclic photophosphorylation
  • Noncyclic photophosphorylatian
  • Fermentation
Answer: Oxidative phosphorylation
Q23 | Formation of ATP occurs
  • In outer mitochondrial membrane
  • On F1 particles
  • Mitochondrial matrix
  • In mitochondrial DNA
Answer: On F1 particles
Q24 | Phosphorylation means
  • Formation of reduced coenzyme
  • Formation of PGA
  • Formation of ATP
  • Breakdown of ATP
Answer: Formation of ATP
Q25 | Oxidative phosphorylation occurs in
  • Mitochondria
  • Chloroplast
  • Cytoplasm
  • Golgi bodies
Answer: Mitochondria
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