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1. Pseudomonas saccharophila shows which of the following pathway?
(a) Glycolysis
(b) Kreb's cycle
(c) Entner-Deudroff pathway
(d) None of these
(b) Kreb's cycle
(c) Entner-Deudroff pathway
(d) None of these
2. What is the Formula of Pyruvic acid:
A) CH3COCOOH
B) C2H5OH
C). CHOCOOH
D). CHO
3. Fermentation is ;
a) Complete oxidation of carbo hydrate.
b) Incomplete oxidation of carbo hydrate.
c) anaerobic respiration.
d) none of the above.
4.Which group of the following scientist discovered the EMP pathway of glycolysis?
a) Embden , Mayerhoff & Paranas.
b) Embden , Morrison & Pitcher.
c) Emerson, Hoffman & Piterson.
d) Avery, Mclead & McCarthy.
7. Respiration enzymes are located in;
a) Mitochondrial matrix
b) Peri mitochondrial space.
c) Cristae.
d) Outer membrane.
8. How many NADP produce in kreb cycle?
A). 2
B). 6
C). 4
D). 8
9. The amount of energy received from one ATP molecule is ;
a) 7.3 k. cal.
b) 760 k. cal.
c) 76 k. cal.
d) 100 k. cal.
10. ATP formation occurs when there is change from ;
a) Glucose → glucose-6-phosphote
b) Pyruvic acid → Acetyl CoA
c) Fructose-6-phosphate → Fructose 1, 6- diphosphate
d) Glucose-6-phosphate → Fructose-6- diphosphate
Answer -
1 - C ( Entner Deudroff pathway )
2 - d
3 - b
4 - a
5 -
6 - b
7 - a
8 -
9 - a
10 -
11. The oxidation of glucose to pyruvates and their subsequent break down is
brought about by:
(a) Electron transfer system
(b) Respiratory enzyme system
(c) Cyclic electron system
(d) Respiratory phosphorylation
12. In Prokaryotes, the mitochondria are absent. Even then Krebs Cycle takes
place. What is the site of Krebs cycle in Bacteria ?
(a) Ribosomes
(c) Cytoplasm
(b) Nucleoid
(d) Plasma membrane
13. Incomplete oxidation of glucose into pyruvic acid with several
intermediate steps is known as
(a) Kreb's cycle
(b) TCA pathway
(c) HMS pathway
(d) Glycolysis
14. Which complex can't release electron in electron transport system?
A). Complex I
B). Complex II
C). Complex IV
D). Complex III
15. Cytochrome transfer the
A) electron
B). Proton
C) ATP
D) GTP
16. Hexose Monophosphate shunt is:
(a) Pentose-phosphate pathway or (a set of reactions that bypasses the
glycolytic and Kreb's cycle routes for glucose oxidation in the cell)
(b) Conversion of glucose into pyruvic acid
(c) The sum of all chemical transformations
(d) A process by which new products are synthesized
17. Which is the final electron acceptor in respiration?
(a) Cytochromes
(b) Oxygen
(C) Dehydrogenases
(d) Hydrogen
18. Photorespiration is characteristic of:
(a) C3 plants
(b) CAM plants
(c) C4 plants
(d) None of the above
19. The kreb's cycle begins with:
(a) Pyruvic acid
(b) Hydrochloric acid
(c) Corticosteriods
(d) Lysine
20. In respiration pyruvic acid is:
(a) Broken down into a two carbon fragment and carbon dioxide
(b) A result of protein breakdown
(c) Formed only when oxygen is available
(d) One of the product of Kreb's cycle
11 -
12 - d
13 - d
14 -
15 -
16 -
17- b
18- a
19- a
20- a
21. Pyruvate (Pyruvic) dehydrogenase is used in converting :
(a) Pyruvate to glucose
(b) Glucose to pyruvate
(c) Pyruvic acid to lactic acid
(d) Pyruvate (Pyruvic acid) to Acetyl CoA
22. Which of the following processes is used in the conversion of pyruvate
(pyruvic acid) to acetyl COA:
(a) Oxidative dehydration
(b) Oxidative phosphorylation
(c) Oxidative decarboxylation
(d) Oxidative dehydrogenation
23. R.Q. is less than one in the case of:
(a) Fats
(c) Glucose
(b) Fructose
(d) Organic acids
24. R.Q. of fatty substances is generally :
(a) Zero
(c) More than one 25.
(b) Unity
(d) Less than one
25. An indispensable role in energy metabolism is played by :
(a) Sodium
(b) Calcium
(c) Phosphorus
(d) Lithium
26. Respiration and photosynthesis both require:
(A) Energy from carbon bends
(b) Cytochromes
(c) Sunlight
(D) Organic fuel
27. The correct sequence in Kreb's cycle is:
(a) Isocitric acid →Oxalosuccinic acid →a-Ketoglutaric acid
(b) Oxalosuccinic acid → Isocitric acid→a-Ketoglutaric acid
(c) a-Ketoglutaric acid→Isocitric acid→ Oxalosuccinic acid
(d) Isocitric acids → Ketoglutaric acid → Oxalosuccinic acid
28. In Hexose monophosphate shunt the number of CO2 molecules evolved is
:
(a) Same as in glycolysis
(b) Less than glycolysis
(c) More than glycolysis
(d) Much lesser than glycolysis
29. Oxidation of one molecule of glucose in aerobic respiration results in the
formation of
(a) 36 ATP molecules
(b) 38 ATP molecules
(c) 2 ATP molecules
(d) 15 ATP molecules
30. Oxidation of succinate to fumarate in Kreb's cycle is due to:
(a) Loss of electron from it
(b) Removal of hydrogen from it
(c) Addition of oxygen to it
(d) None of the above
Answers:
21-d
22- c
23-
24- d
25- c
26- b
27-
28- c
29 - b
30 - b
31. Under anaerobic circumstances end products of pyruvic acid are:
(a) C2H5OH + CO2 + H₂O
(b) C2H5OH + Energy
(c) CO+H2O+ Energy
(d) C2H5OH + CO2 + Energy
32. The organelles involved with Photorespiration are:
(a) Mitochondria, Nucleus and Ribosomes
(b) Mitochondria, Peroxisomes and Chloroplasts
(c) Mitochondria, Peroxisomes and Glyoxysomes
(d) Mitochondria, Chloroplasts and Ribosomes
33. Who discovered the process of fermentation?
(a) Jones
(b) Pasteur
(c) Buchner
(d) Kreb
34. Conversion of pyruvic acid to ethyl alcohol is catalysed by:
(a) Decarboxylase
(b) Dehydrogenase
(c) Both (a) and (b)
(d) Phosphatase
35. Alcohol is formed during :
(a) Aerobic respiration
(b) Anaerobic respiration
(c) Fermentation
(d) Glycolysis
36. Anaerobic respiration can be the represented by:
(a) 6CO2 + 6H2O → C6H12O6 +302
(b) C6H12O6+02→ CO2 + H2O + Energy
(c) C6H12O6 - 2C2H5OH + 2CO2 + Energy
(d) 6CO2 + 6H2O - C6H12O6+ 6H20 + 302
37. A plant respiring in darkness produces more CO2 than in light because
(a) Respiration is increased in darkness
(b) Respiration occurs in darkness
(c) Photosynthesis is stopped in dark
(d) Photorespiration is stopped
38. Number of ATP equivalents generated by EMP pathway is :
(a) 6 ATP
(b) 8 ATP
(c) 38 ATP
(d) 40 ATP
39. The end product of glycolysis is:
(a) ATP and NADPH2
(b) Pyruvic acid and ATP
(c) CO2 and Lactic acid or C2H5OH
(d) Glycerophosphate/citric acid
40. The enzyme which brings about the conversion of Fr.-6-phosphate into
Fr.-1-6 diphosphate is :
(a) Hexokinase
(b) Phospho-fructokinase
(c) Phosphofructo isomerase
(d) Fructomutase
31 -
32 - b
33 - b
34 - c
35 - c
36 - c
37 - c
38 - b
39 - b
40 - c
41. If carbon dioxide contents of the atmosphere is as high as 300 ppm :
(a) All plants will be killed.
(b) The plants would not grow properly.
(c) Plans would grow for sometimes and then die.
(d) The plants would thrive well.
42. Which statement is wrong?
(a) Stomatal opening is influenced by many factors and potassium
(b) All enzymes are proteins but all proteins are not enzymes
(c) All angiosperms are with seeds but all seed plants are not angiosperms
(d) The factors which effect the respiration influenced the photosynthesis but
reverse is not possible.
43. Cytochrome is related to:
(a) Cellular digestion
(b) Protein synthesis
(c) Cell division
(d) Cellular respiration
44. When ATP molecule is hydrolysed in ADP, then the quantity of energy
released is about
(a) 120 cal.
(b) 1,200 cal.
(c) 12,000 cal.
(d) 1,20,000 cal.
45. Which conversion would not involve EMP pathway?
(a) Pyruvate to COH₂O
(b) Glucose to pyruvate and CO2
(c) Glucose to lactic acid
(d) Glucose to ethanol
46. Generally the aerial parts of a green plant processes its respiratory
substrate through:
(a) The Enterner Duodroff pathway and Kreb's cycle
(b) EMP and TCA cycle
(c) PPP or HMP pathway and Kreb's cycle
(d) All the above
47. Pentose phosphate pathway, an alternative pathway of respiration was
elucidated by:
(a) Warburg
(b) Dickens
(c) Horecker
(d) Blackman
48. HPM-shunt is a set of reactions:
(a) Called pentose phosphate pathway
(b) Which bypass EMP route of glucose oxidation
(c) Both A & B
(d) Which converts glucose to phosphoglycerate
49. Pasteur effect is concerned with the shifting of environmental conditions
from:
(a) Light to dark
(b) Anaerobic to aerobic
(C) Aerobic to anaerobic
(d) Light to anaerobic
50. In how many steps is CO2 released in aerobic respiration?
(a) In One or two steps
(b) In Three steps
(d) In Twelve steps
(c) In Six steps
41 - D
42 -
43 - D
44 - C
45 -
46 -
47 - A
48 - C
49 - B
50 - B
51. Reduction of NADP to NADPH2 is associated with:
(a) EMP
(b) Calvin cycle
(C) HMP
(d) Glycolysis
52. Hydrogen acceptor in anaerobic respiration is
A) NAD+
B) FAD+
C). Both A&B
D) GTP
53. Hydrogen acceptor in aerobic respiration is
A) FAD+
B) NAD+
C). Both A&B
D) GTP
54. Glycolysis take place in
A). Plasmid
B). plasmalemma
C). Mitochondria
D). Nucleus
55.
60. The product of aerobic respiration of glucose is:
(a)CO + H2O + ATP
(c) CO₂+ ethyl alcohol
(b) CO2 + pyruvic acid
(d) CO₂+ pyruvic acid + citric acid
51 - C
52 -
53 -
54 -
55 -
56 -
57 -
58 -
59 -
60 -
61. Oxidative phosphorylation is related to the formation of:
(a) ATP by chloroplast via photosynthesis
(b) ATP by chondriosome via photolysis
(c) ATP by cytoplasm via glycolysis
(d) ATP by chondrisomes via respiration
62. The process of phosphorylation was discovered by:
(a) Calvin
(c) Priestley
(b) Arnon
(d) Warburg
63. When 100% carbon is oxidized to CO2. The efficiency of such a respiration
is:
(a) 40%
(b) 90%
(c) 60%
(d) 100%
64. Kreb has been awarded Nobel Prize in 1953 for explaining:
(a) Energy forming process in the cell
(b) ATP metabolism
(c) Respiration chain
(d) Oxidation of cytoplasm
65. Which of the following observation most strongly support the view that
mitochondria contain
electron transfer enzymes aggregated into compact
associations?
(a) A contractile protein capable of utilizing ATP has been obtained from
mitochondria
(b) Mitochondria have highly folded inner wall
(c) Disruption of mitochondria yields membrane fragments which are able to
synthesize ATP
(d) Mitochondria in animal embryos have a tendency to concentrate in cells
which are to
become part of locomotary structures
66. The common phase between aerobic and anaerobic respiration is
called:
(a) Tricarboxylic acid cycle
(b) Oxidative phosphorylation
(c) Embden, Meyerhof, Paranas cycle
(d) Kreb's cycle
67. Maximum number of ATP is obtained from:
(a) Glucose
(c) Malic acid
(b) Palmitic acid
(d) B-amino acid
68. Plants which exhibit photorespiration are:
(a) C4 plants
(b) Ca plants
(c) CAM plants
(d) Alpine plants
69. Which of the following plants are high CO2 compensation plants?
(a) C3 plants
(b) C4 plants
(c) C2 plants
(d) Alpine plants
70. Salt respiration is also called as :
(a) Anion respiration
(b) Cation respiration
(c) Photorespiration
(d) None of these
71. R.Q. is less than one in:
(a) Starch
(b) Sugarcane
(c) Glucose
(d) Groundnut
72. Evolution of CO2 is more than intake of oxygen when:
(a) Sucrose is respired
(b) Glucose is respired
(c) Organic acids are respired
(d) Fats are respired
13. In succulents respiratory quotient is always less than one because of:
(a) Complete oxidation
(b) Complete reduction
(d) Incomplete reduction
(c) Incomplete oxidation
74. Photorespiration is favoured by:
(a) Low O2 and high CO2
(b) Low light and high 02
(c) High O2 and low CO2
(d) Low temperature and high CO2
75. Kreb's cycle means:
(a) Anaerobic respiration
(c) Photosynthesis
(b) Aerobic respiration
(d) Transpiration
76. The enzymes Herokinase which catalyses glucose to Glucose-6-phosphate in
glycolysis is inhibited by glucose-6-phosphate. This is an example of:
(a) Feedback Allosteric inhibition
(b) Positive feedback
(c) Competitive inhibition
(d) Non-competitive inhibition
77. The general formula of aerobic respiration is as follows:
(a) Acetaldehyde + NADH2 Dehydrogenase + Ethyl alcohol
(b) C6H12O6- →2C2H5OH + 2CO2 + Energy (2 ATP)
(c) C6H12O6+6026CO2 + 6H2O+686 kcals, energy
(d) None of these
78. Mitochondria are the site for:
(a) Photophosphorylation
(b) Oxidative phosphorylation
(c) Transpiration
(d) Carboxylation
79. The enzymes which take part in glycolysis are found in:
(a) Mitochondria
(b) Cytoplasm
(c) Mitochondria and cytoplasm
(d) Vacuoles
80. Respiratory site in a cell is:
(a) Chloroplast
(b) Cytoplasm
(c) Mitochondria
(d) Golgi body
81. The formula for the process of Glycolysis is :
(a) 2H2O+ 6C0gCgH12O6+ 602
(b) C6H12O62C3H4O3 + 4H
(c) C6H12O6+6CO2 6CO2 + 6H2O
(d) None of these
82. In Kreb's cycle FAD participates as electron:
(a) Succinyl Co-A to succinic acid
(b) Succinic acid to fumaric acid
(c) Alpha keto glutarate to succinyl Co-A
(d) Fumaric acid to malic acid
The mechanism of ATP formation both in chlorophyll as well as mitochondria is
explained by:
(a) Relay pump theory of Godlewski
(b) Munch's Pressure/Mass flow Model
(c) Chemiosmotic Theory of Mitchell
(d) Cholodny Went's Model
84. Photorespiration takes place only in
(a) Green parts of the plant
(b) All the living cells of the plant
(c) Mitochondria
(d) Root
Source
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https://www.sarthaks.com/2183223/hexose-monophosphate-shunt-is
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