question_answer 1) Net gain of ATP molecules during aerosol respiration is: [AIPMT 1999]
A)
36 molecules
done
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B)
60 molecules
done
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C)
38 molecules
done
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D)
48 molecules
done
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question_answer 2) ATP is a: [AIPMT 2000]
A)
nucleotide
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B)
nucleosome
done
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C)
purine base
done
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D)
nucleoside
done
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question_answer 3) How may ATP molecules are produced by aerobic oxidation of one molecule of glucose? [AIPMT 2002]
A)
2
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B)
4
done
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C)
38
done
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D)
34
done
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question_answer 4) During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP? [AIPMT (S) 2005]
A)
Conversion of pyruvic acid to acetyl Co-A
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B)
Electron transport chain
done
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C)
Glycolysis
done
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D)
Krebs cycle
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question_answer 5) Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on: [AIPMT (S) 2005]
A)
proton gradient
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B)
accumulation of K ions
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C)
accumulation of Na ions
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D)
membrane potential
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question_answer 6) 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? [AIPMT (S) 2006]
A)
Two
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B)
Thirty
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C)
Fifty seven
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D)
One
done
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question_answer 7) During photorespiration, the oxygen consuming reaction (s) occur in: [AIPMT (S) 2006]
A)
stroma of chloroplasts and mitochondria
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B)
stroma of chloroplasts and peroxisomes
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C)
grana of chloroplasts and peroxisomes
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D)
stroma of chloroplasts
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question_answer 8) The energy-releasing process in which the substrate is oxidized without an external electron acceptor is called [AIPMT (S) 2008]
A)
fermentation
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B)
photorespiration
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C)
aerobic respiration
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D)
glycolysis
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question_answer 9) Aerobic respiratory pathway is appropriately termed [AIPMT (S) 2009]
A)
catabolic
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B)
parabolic
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C)
amphibolic
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D)
anabolic
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question_answer 10) \[{{\text{C}}_{\text{4}}}\text{-}\]plants are more efficient in photosynthesis than \[{{\text{C}}_{3}}\text{-}\]plants due to [AIPMT (S) 2010]
A)
higher leaf area
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B)
presence of larger number of chloroplasts in the leaf cells
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C)
presence of thin cuticle
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D)
lower rate of photorespiration
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question_answer 11) In mitochondria, protons accumulate in the [AIPMT (M) 2011]
A)
outer membrane
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B)
inner membrane
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C)
inter membrane space
done
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D)
matrix
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question_answer 12) The correct sequence of cell organelles during photorespiration is [AIPMT (S) 2012]
A)
chloroplast-Golgi bodies-mitochondria
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B)
chloroplast-rough endoplasmic reticulum-dictyosomes
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C)
chloroplast-mitochondria-peroxisome
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D)
chloroplast-vacuole-peroxisome
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question_answer 13)
The three boxes in this diagram represent the three major biosynthetic pathways in aerobic respiration. [NEET 2013] Arrows numbered 4, 8 and 12 can all be
A)
NADH
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B)
ATP
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C)
\[{{H}_{2}}O\]
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D)
\[FA{{D}^{+}}orFAD{{H}_{2}}\]
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question_answer 14) Which of the metabolites is common to respiration mediated breakdown of fats, carbohydrates and proteins? [NEET 2013]
A)
Glucose-6-phosphate
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B)
Fructose 1, 6-bisphosphate
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C)
Pyruvic acid
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D)
Acetyl Co-A
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question_answer 15) In which one of the following processes \[C{{O}_{2}}\]is not released? [NEET 2014]
A)
Aerobic respiration in plants
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B)
Aerobic respiration in animals
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C)
Alcoholic fermentation
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D)
Lactate fermentation
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question_answer 16) Cytochromes are found in [NEET [C] 2015]
A)
matrix of mitochondria
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B)
outer wall of mitochondria
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C)
cristae of mitochondria
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D)
lysosomes
done
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question_answer 17) In which of the following, all three are macronutrients? [NEET - 2016 Phase-I]
A)
Boron, zinc, manganese
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B)
Iron, copper, molybdenum
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C)
Molybdenum, magnesium, manganese
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D)
Nitrogen, nickel, phosphorus
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question_answer 18) Which of the following biomolecules is common to respiration - mediated breakdown of fats, carbohydrates and proteins? [NEET - 2016 Phase-II]
A)
Glucose - 6 - phosphate
done
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B)
Fructose 1, 6- bisphosphate
done
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C)
Pyruvic acid
done
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D)
Acetyl CoA
done
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question_answer 19) Which statement is wrong for Krebs' cycle? [NEET-2017]
A)
The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid
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B)
There are three points in the cycle where \[NA{{D}^{+}}\]is reduced to \[NADH+{{H}^{+}}\]
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C)
There is one point in the cycle where \[FA{{D}^{+}}\]is reduced to \[FAD{{H}_{2}}\]
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D)
During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesized
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question_answer 20) What is the role of \[\text{NA}{{\text{D}}^{\text{+}}}\]in cellular respiration? [NEET - 2018]
A)
It is a nucleotide source for ATP synthesis.
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B)
It functions as an electron carrier.
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C)
It functions as an enzyme.
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D)
It is the final electron acceptor for anaerobic respiration.
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question_answer 21) Respiratory Quotient (RQ) value of tripalmitin is: [NEET 2019]
A)
0.07
done
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B)
0.09
done
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C)
0.9
done
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D)
0.7
done
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question_answer 22) Conversion of glucose to glucose-6phosphate, the first irreversible reaction of glycolysis, is catalyzed by- [NEET 2019]
A)
Enolase
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B)
Phosphofructokinase
done
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C)
Aldolase
done
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D)
Hexokinase
done
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question_answer 23) The number of substrate level phosphorylations in one turn of citric acid cycle is [NEET 2020]
A)
One
done
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B)
Two
done
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C)
Three
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D)
Zero
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question_answer 24) The oxygenation activity of RuBisCo enzyme in photorespiration leads to the formation of [NEET 2020]
A)
1 molecule of 3-C compound
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B)
1 molecule of 6-C compound
done
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C)
1 molecule of 4-C compound and 1 molecule of 2-C compound
done
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D)
2 molecules of 3-C compound
done
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