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Quiz 10
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Q.1
For formation of ethanol, pyruvic acid is first changed to acetaldehyde by enzyme … ..[ JKCMEE 2007]
0%
a) Pyruvate dehydrogenase
0%
b) Pyruvate carboxylase
0%
c) Alcohol oxidase
0%
d) Alcohol dehydrogenase
Explanation
Answer : (b)
Q.2
Before combining with OAA, pyruvic acid is changed into … .. [ BHU 2002]
0%
a) Succinic acid
0%
b) Malic acid
0%
c) Acetyl CoA
0%
d) Citric acid
Explanation
Answer : (c)
Q.3
Alcohol fermentation uses .. … [ MHTCET 2001]
0%
a) Ribosomes
0%
b) Golgi bodies
0%
c) Mitochondrial enzymes
0%
d) Cytoplasmic enzymes
Explanation
Answer : (d)
Q.4
A molecule of FADH2 …
0%
a) Consumes one O2
0%
b) Consumes one H2O molecules
0%
c) Forms 2ATP
0%
d) All the above
Explanation
Answer : (c)
Q.5
Energy for ATP synthesis is obtained from … ..[ CPMT 2000]
0%
a) Oxygen ion gradient
0%
b) Hydrogen ion gradient
0%
c) Nitrogen ion gradient
0%
d) All the above
Explanation
Answer : (b)
Q.6
Electron transport system of mitochondria is located in … .. [ CPMT 1999]
0%
a) Outer chamber
0%
b) Inner membrane
0%
c) Inter-cristal space
0%
d) Outer chamber
Explanation
The electron transport chain is a series of electron transporters embedded in the inner mitochondrial membrane that shuttles electrons from NADH and FADH2 to molecular oxygen. Answer : (c)
Q.7
In germinating seed, R.Q. falls when there is shift from … … [ BHU 1993]
0%
a) Carbohydrate to fat as substrate
0%
b) Fat to carbohydrate
0%
c) Aerobic to anaerobic respiration
0%
d) Protein to carbohydrate
Explanation
Answer : (a)
Q.8
In mitochondria, ATP synthesis occurs … [ CPMT 1990]
0%
a) At the outer membrane
0%
b) At the cristae
0%
c) In the matrix
0%
d) In the intra-cristal space
Explanation
Answer : (b)
Q.9
ATP is injected in cyanide poisoning because it is … .. [ CBSE 1994]
0%
a) Necessary for cellular functions
0%
b) Necessary for Na+ - K+ pump
0%
c) Na+ - K+ pump operates at the cell membranes
0%
d) ATP breaks down cyanide
Explanation
Answer : (a)
Q.10
In glycolysis, glucose splits into compounds which are … ..[ CBSE 1996]
0%
a) 5-C
0%
b) 4-C
0%
c) 2-C
0%
d) 3-C
Explanation
Answer : (d)
Q.11
Energy required to synthesis ATP from ADP and inorganic phosphate is … .. [ AFMC 2000]
0%
a) 2500 cal
0%
b) 7600 cal
0%
c) 12000 cal
0%
d) 20000 cal
Explanation
Answer : (b)
Q.12
Number of Oxygen atoms required for complete oxidation of pyruvic acid is … .. [ DPMT 1997]
0%
a) 6
0%
b) 12
0%
c) 3
0%
d) 8
Explanation
Answer : (a)
Q.13
Hydrogen atoms released at succinate level in Krebs cycle are accepted by … .. [ CPMT 1996]
0%
a) NAD
0%
b) FAD
0%
c) NADP
0%
d) ADP
Explanation
Answer : (b)
Q.14
Which one is a product of glycolysis, besides 2ATP? … .. [ CPMT 1995]
0%
a) FAD
0%
b) NADH
0%
c) NAD
0%
d) NADP
Explanation
Answer : (b)
Q.15
R.Q. can vary due to … … [ RPMT 1992]
0%
a) Temperature
0%
b) respiratory substrate
0%
c) Light and oxygen
0%
d) Respiratory product
Explanation
Answer : (b)
Q.16
ommon phase between aerobic and anaerobic modes of respiration is .. .. [ RPMT 1996]
0%
a) krebs cycle
0%
b) EMP/glycolysis
0%
c) Oxidative phosphorylation
0%
d) PPP
Explanation
Answer : (b)
Q.17
Which of the following process is used in the conversion of pyruvate to acetyl CoA? [ CEPMT 1990]
0%
a) Oxidative decarboxylation
0%
b) Oxidative dehydrogenation
0%
c) Oxidative dehydration
0%
d) Oxidative phosphorylation
Explanation
Answer : (a)
Q.18
Identify the membrane across which proton gradient promotes ATP synthesis in eukaryotic cell …. .. [ WB 2012]
0%
a) Plasma membrane
0%
b) Mitochondrial outer membrane
0%
c) Mitochondrial inner membrane
0%
d) Nuclear membrane
Explanation
Answer : (c)
Q.19
In glycolytic pathway which of the following shows reduction of coenzyme … .. [ Odisha 2010]
0%
a) 1,3-diphosphoglycerate to 3-phosphoglycerate
0%
b) Glucose 6-phosphate to fructose 6-phosphate
0%
c) 3-phosphoglycerate to 2-phospgoglycerate
0%
d) Glyceraldehyde 3- phosphate to 1-3, diphosphoglycerate.
Explanation
Answer : (d)
Q.20
During EMP pathway, ATP is produced through .. …[ MPPMT 2012]
0%
a) Oxidative phosphorylation
0%
b) Cyclic phosphorylation
0%
c) Substrate phosphorylation
0%
d) None of the above
Explanation
Answer : (c)
Q.21
he respiratory process of yeast is … .. [ MPPMT 2010]
0%
a) Rarely anaerobic
0%
b) Anaerobic
0%
c) Purely aerobic
0%
d) Both aerobic and anaerobic
Explanation
Answer : (d)
Q.22
Decarboxylation occurs during .. ..[ MHTCET 2011]
0%
a) Glycolysis
0%
b) ETS
0%
c) Krebs cycle
0%
d) All the above
Explanation
Answer : (c)
Q.23
Cellular respiration first begins in .. …[ DPMT 2008]
0%
a) Cytoplasm
0%
b) Golgi bodies
0%
c) E.R.
0%
d) Lysosomes
Explanation
Answer : (a)
Q.24
Aerobic respiration occurs in … … [ MHTCET 2008]
0%
a) Mitochondria
0%
b) Peroxisomes
0%
c) Cytoplasm
0%
d) Cytoplasm and mitochondria
Explanation
Answer : (d)
Q.25
Lactic acid is produced in the process of … .. [ DPMT 2007]
0%
a) Fermentation
0%
b) HMP
0%
c) Krebs cycle
0%
d) Glycolysis
Explanation
Answer : (a)
Q.26
RQ of 4, 1 and 0.7 occur in case of … .. [ kerala 2007]
0%
a) malic acid, palmitic acid and tripalmitin
0%
b) Oxalic acid, carbohydrate and tripalmitin
0%
c) Tripalmitin, malic acid and carbohydrate
0%
d) Palmitic acid, carbohydrate and oxalic acid
Explanation
Answer : (b)
Q.27
Enzyme used in conversion of glucose into glucose 6-phosphate is … ..[ JIPMER 2005]
0%
a) Hexokinase
0%
b) Isomerase
0%
c) Phosphokinase
0%
d) Phosphohexokinase
Explanation
Answer : (a)
Q.28
Number of glucose molecules required to produce 38 ATP molecules under anaerobic conditions is … ..[ kerala 2004]
0%
a) 2
0%
b) 4
0%
c) 19
0%
d) 38
Explanation
Answer : (c)
Q.29
hat occurs in glycolysis … .. [ AFMC 2002]
0%
a) Fixation
0%
b) Reduction
0%
c) Dehydration
0%
d) Oxidation
Explanation
Answer : (d)
Q.30
Which one forms ATP? … ..[ AFMC 2000]
0%
a) Fe and P
0%
b)N and P
0%
c) Fe and Mo
0%
d) Mg and Mn
Explanation
Answer : (b)
0 h : 0 m : 1 s
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