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Quiz 9
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Q.1
Anaerobic respiration of yeast produces … ..[ AFMC 2000]
0%
a) N2
0%
b) O2
0%
c) CO2
0%
d) H2O
Explanation
Yeast is used to make alcoholic drinks. When yeast cells are reproducing rapidly during beer or wine production, the oxygen is used up. The yeast has to switch to using anaerobic respiration to ensure it can survive. Ethanol and carbon dioxide are produced. Answer : (c)
Q.2
Bond between first phosphate and adenosine in ATP is .. ..[ KCET 2001]
0%
a) Phosphoester bond
0%
b) Nitrophosphate bond
0%
c) Phosphoanhydride bond
0%
d) Adenophosphate bond
Explanation
Answer : (a)
Q.3
Arrange the enzyme in increasing order of carbon number of substrate on which they act a) Enolase (b) Aconitase (c) Fumarase (d) Alcohol dehydrogenase
0%
a) d, a, b, c
0%
b) b, d, c, a
0%
c) a, d, c, b
0%
d) d, a, c, b
Explanation
Answer : (d)
Q.4
Direct ATP yield during Krebs cycle per glucose molecule is .. … [ WB 2009]
0%
a) NADH dehydrogenase
0%
b) ATP synthetase
0%
c) Succinate dehydrogenase
0%
d) Ubiquinone
Explanation
Answer : (b)
Q.5
Chemiosmotic hypothesis given by Peter Mitchell process the mechanism of … .. [ KCET 2011]
0%
a) Synthesis of ATP
0%
b) Synthesis of FADH2
0%
c) Synthesis of NADH
0%
d) Synthesis of NADPH
Explanation
Answer : (a)
Q.6
Link reaction between glycolysis and Krebs cycle is … .. [ MHTCET 2011]
0%
a) Pyruvate → Acetyl CoA
0%
b) PGAL → 1:3-diPGA
0%
c) Citric acid → Isocitric acid
0%
d) Malate → OAA
Explanation
Answer : (a)
Q.7
When one molecule of glucose undergoes glycolysis aerobically, last stable product will be … .. [ Chd. CET 2012]
0%
a) One pyruvic
0%
b) Two pyruvic
0%
c) Three pyruvic
0%
d) Four pyruvic
Explanation
Answer : (b)
Q.8
The substrate for pentose phosphate pathway is … .. [ BHU 2012]
0%
a) Glucose 6-phosphate
0%
b) Glucose 1-phosphate
0%
c) Fructose 6-phosphate
0%
d) Fructose 1-phosphate
Explanation
Answer : (a)
Q.9
In Krebs cycle .. .. [ MPPMT 2004]
0%
a) Pyruvic acid is converted into ATP
0%
b) ADP is converted into ATP
0%
c) Glucose is converted into CO2
0%
d) Pyruvic acid is converted into ADP
Explanation
Answer : (a)
Q.10
When one glucose molecule is completely oxidized, it changes … .. [ CBSE 1992]
0%
a) 36 ADP molecules into 36 ATP molecules
0%
b) 38 ADP molecules into 38 ATP molecules
0%
c) 30 ADP molecules into 30 ATP molecules
0%
d) 32 ADP molecules into ATP molecules
Explanation
Answer : (b)
Q.11
R.Q. is ratio of .. .. [ CBSE 1990]
0%
a) CO2 produced to substrate consumed
0%
b) CO2 produced to O2 consumed
0%
c) Oxygen consumed to water produced
0%
d) Oxygen consumed to CO2 produced
Explanation
Answer : (b)
Q.12
Fermentation products of Yeast are … .. [ JIPMER 2005]
0%
a) H2O + CO2
0%
b) Methyl alcohol + CO2
0%
c) Methyl alcohol + Water
0%
d) Ethyl alcohol + CO2
Explanation
Answer : (d)
Q.13
Anaerobic process after glycolysis is known as … ..[ AFMC 1997]
0%
a) TCA cycle
0%
b) Krebs cycle
0%
c) Calvin cycle
0%
d) None of the above
Explanation
Answer : (d)
Q.14
Which of the following enzymes is absent in mitochondria? … … [ CPMT 1998]
0%
a) Aconitase
0%
b) Malic dehydrogenase
0%
c) Fumarase
0%
d) Hexokinase
Explanation
hexokinase is a part of glycolysis and it occurs in cytoplasm and absent in mitochondria Explanation provided by Miss Shraddha Ghag Answer : (d)
Q.15
Component of ETC of mitochondria is … ..[ DPMT 2001]
0%
a) Carotenoids
0%
b) Plastocyanin
0%
c) Phytochrome
0%
d) Cytochrome oxidase
Explanation
Answer : (c)
Q.16
Maximum number of ATP is synthesized during oxidation of … .. [ RPMT 1990]
0%
a) β-amino acid
0%
b) Malic acid
0%
c) Palmitic acid
0%
d) Glucose
Explanation
Answer : (c)
Q.17
The site of Krebs cycle in bacteria is …..
0%
a) Nucleoid
0%
b) Cytoplasm
0%
c) Plasma membrane
0%
d) Ribosomes
Explanation
Answer : (c)
Q.18
Complete oxidation of one gram mol. Of glucose gives rise to .. .. [ MPPMT 1991]
0%
a) 6860,000 cal
0%
b) 686,000 cal
0%
c) 68,600 cal
0%
d) 6,860 cal
Explanation
Answer : (b)
Q.19
Net gain of ATP in glycolysis … [ CBSE 1990]
0%
a) 6
0%
b) 2
0%
c) 4
0%
d) 8
Explanation
Answer : (d)
Q.20
In ETS, complexes I and IV are respectively .. .. [ kerala 2011]
0%
a) NADH dehydrogenase and FADH2
0%
b) FASH2 and NADH dehydrogenase
0%
c) NADH dehydrogenase and cytochrome oxidase complex
0%
d) NADH dehydrogenase and ATP synthase
Explanation
Answer : (c)
Q.21
RQ is more than one indicating … .. [ AMU 2002]
0%
a) Aerobic respiration
0%
b) Anaerobic respiration
0%
c) Both a and b
0%
d) None of the above
Explanation
Answer : (c)
Q.22
Products of anaerobic respiration are .. .. [ Manipal 2001]
0%
a) Ethyl alcohol and carbon monoxide
0%
b) Ethyl alcohol and lactic acid
0%
c) Lactic acid and glycogen
0%
d) Acetic acid and carbon dioxide
Explanation
Answer : (b)
Q.23
ATP is synthesized in … ..[ CPMT 2010]
0%
a) Ion channels
0%
b) Plasmalemma
0%
c) F0 particles
0%
d) F1 Particles
Explanation
Answer : (d)
Q.24
Calorific value of carbohydrates, protein and fats are … .. [ WB PMT 2007]
0%
a) 4.1 kcal/g, 5.65 kcal/g, 9.45 kcal/g
0%
b) 5.65 kcal/g, 10 kcal/g, 2.3 kcal/g
0%
c) 3.1 kcal/g, 9 kcal/g, 6 kacl/g
0%
d) none of the above
Explanation
Answer : (a)
Q.25
Which of the following processes makes direct use of oxygen? … .. [ CPMT 2010]
0%
a) Glycolysis
0%
b) Fermentation
0%
c) Electron transport
0%
d) Krebs citric acid cycle
Explanation
Answer : (c)
Q.26
How many ATPs are formed per glucose molecule in Krebs cycle? .. ..[ Bih PMT 2006]
0%
c) 6
0%
a) 2
0%
b) 24
0%
d) 28
Explanation
Krebs cycle forms (per two molecules of pyruvic acid ) two ATP molecules, ten NADH molecules, and two FADH2 molecules. The NADH and the FADH2 will be used in the electron transport system. Answer : (a)
Q.27
Which of the following is incorrect for glycolysis? .. ..[ Manipal 2005]
0%
a) It produces ATP
0%
b) It uses ATP
0%
c) End products are CO2 and H2O
0%
d) None of the above
Explanation
Answer : (c)
Q.28
In glycolysis, electrons are removed by .. .. [ CBSE 2004]
0%
a) ATP
0%
b) NAD
0%
c) Glyceraldehyde 3-phosphate
0%
d) Molecular oxygen
Explanation
Answer : (b)
Q.29
The reaction forming 3-phosphoglyceric acid is glycolysis is … .. [ MHTCET 2007]
0%
a) Cleavage
0%
b) Oxidative phosphorylation
0%
c) Dephosphorylation
0%
d) Oxidative decarboxylation
Explanation
Answer : (c)
Q.30
Which of the following is the first step of glycolysis? … .[ CPMT 2004]
0%
a) Conversion of glucose into fructose
0%
b) Dehydration of glucose
0%
c) Breakdown of glucose
0%
d) Phosphorylation of glucose
Explanation
Answer : (d)
0 h : 0 m : 1 s
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