RESPIRATION ASSIGNMENT

1	Inner membrane of mitochondrion is less permeable to H2O CO2 O2 H+ Ans:H+
2	Percentage of aerobic respiratory enzymes present in mitochondrial matrix is 80% 70% 40% 60% Ans:70%
3	Amount of energy released upon hydrolysis of one ATP is 7.6 K.Cal 8.6 K.cal 6.7 K.Cal 6.6 K.Cal Ans:7.6 K.Cal
4	Choose the correct statement ETS can be operated before the initiation of Kreb’s cycle All products of glycolytic reactions are phosphorylated substances Glycolysis can not be carried out in the presence of Oxygen The first of enzyme of Glycolysis is a Lyase Ans:ETS can be operated before the initiation of Kreb’s cycle
5	Match the following with respect to Glycolysis A - V, B - III,C - II, D - I A - V, B - III,C - IV, D - II A - IV, B - V,C - II, D - I A - V, B - III,C - IV, D - I Ans:A - V, B - III,C - IV, D - I
6	Study the following table with respect to Glycolysis and choose the correct combination I and II II and IV III and IV I and III Ans:I and III
7	[A]: Anaerobic respiration is less efficient than aerobic respiration [R]: ATP production ratio between aerobic and anaerobic respiration is 20:1 Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:A is true but R is false
8	The following intermediate of Glycolysis can not directly take part in further oxidation reactions respiration GAP 1, 3 BiPGA DHAP 2PGA Ans:DHAP
9	In Glcolysis, there is no involvement of I. Hydrolases II. Ligases III. Lyases IV. Transferases I and II II and III III and IV II and IV Ans:I and II
10	Arrange the involvement of the following of a cell in correct sequence during aerobic respiration. I. Inner membrane of Mitochondron II. Cytosol III. Oxysomes IV. Mitochondrial matrix I, II, III, IV II, I, IV, III II, IV, I, III II, IV, III, I Ans:II, IV, I, III
11	The sequence of events that occur during conversion of Pyruvic acid to Acetyl Co.A is Condensation, decarboxylation, oxidation Decarboxylation, Condensation, Oxidation Oxidation, decarboxylation, Condensation Decarboxylation, Oxidation, Condensation Ans:Decarboxylation, Oxidation, Condensation
12	One of the following is an intrinsic protein Isocitrate dehydrogenase Succinate dehydrogenase Fumarase Malate dehydrogenase Ans:Succinate dehydrogenase
13	Arrange the involvement of following enzymes in correct sequence during Kreb’s cycle I. Thiokinase II. Decarboxylase III. Fumarase IV. Aconitase IV, II, I, III IV, I, II, III IV, II, III, I II, IV, I, III Ans:IV, II, I, III
14	Choose the correct match with respect to oxidation of Pyruvate in mitochondrial matrix A - V, B - IV, C - II, D - I A - IV, B - III, C - I, D - II A - V, B - IV, C - II, D - III A - V, B - III, C - II, D - I Ans:A - V, B - IV, C - II, D - I
15	Study the following table with respect to aerobic respiration in Mitochondrial matrix and choose the correct combinations I, II II, III, IV I, II, III I, II, III, IV Ans:I, II, III, IV
16	[A]: Kreb’s cycle is Amphibolic pathway [R]: Citric acid cycle helps in oxidation of Proteins and also provides intermediates for amino acid formation Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:Both A and R are true and R is the correct explanation of A
17	Substrates of Kreb’s cycle subjected to Condensation I. Oxalo acetic acid II. Acetyl Co.A III. α-keto glutaric acid IV. Co.A All except IV All except I All except III All Ans:All
18	If there is formation of 30 ATP due to substrate level phosphorylation in Aerobic respiration, the number of Glucose molecules oxidized in respiraton must be 10 15 30 5 Ans:5
19	During Glycolysis, the C-C bond of the substrate is broken by the activity of Kinase Dehydrogenase Mutase Aldolase Ans:Aldolase
20	Identify the correct sequence of enzymes involved in Acetyl Co.A formation Dihydrolipoyl dehydrogenase, Pyruvate decarboxylase, Dihydrolipoyl transacetylase Pyruvate decarboxylase, Dihydrolipoyl transacetylase, Dihydrolipoyl dehydrogenase Dihydrolipoyl transacetylase, Dihydrolipoyl dehydrogenase, Pyruvate decarboxylase Dihydrolipoyl dehydrogenase, Dihydrolipoyl transacetylase, Pyruvate decarboxylase Ans:Pyruvate decarboxylase, Dihydrolipoyl transacetylase, Dihydrolipoyl dehydrogenase
21	FAD behaves as cofactor during the formation of following in aerobic respiration I. Acetyl Co.A II. Succinyl Co.A III. Fumaric acid IV. Citric acid All except IV All except I All except II All except III Ans:All except IV
22	The following enzyme can either remove or add water to the substrate Fumarase Citrate synthase Succinyl thiokinase Aconitase Ans:Aconitase
23	If only one molecule of O2 is provided during aerobic breakdown of one molecule of Glucose, aerobic respiration ends with the formation of following product Acetyl Co.A Oxalosuccinic acid Pyruvic acid Malic acid Ans:Pyruvic acid
24	The last formed 6-C acid in Kreb’s cycle is α – keto glutaric acid Isocitric acid Oxalosuccinic acid Cis aconitic acid Ans:Oxalosuccinic acid
25	10threaction of Kreb’s cycle is Oxidation Hydration Cleavage Decarboxylation Ans:Oxidation
26	Lipoic acid is involved as a part of enzyme during the formation of the following of Kreb’s cycle Succinic acid α – keto glutaric acid Succinyl Co.A Isocitric acid Ans:α – keto glutaric acid
27	During aerobic breakdown of a molecule of Glucose, arrange the following electron carriers of ETS with respect to their involvement for the first time. I. Complex III II. Complex II III. Complex I IV. UQ III, IV, I, II IV, I, III, II IV, III, I, II III, II, IV, I Ans:IV, I, III, II
28	During aerobic oxidation of a molecule of Glucose, the total number of protons transported through Complex I is 16 20 24 12 Ans:16
29	Fe-S centers are absent in Complex II Complex I Complex IV Complex III Ans:Complex IV
30	During ETC, protons are not carried by I. Complex II II. UQ III. Complex III IV. Cytochrome C I and II III and IV II and IV I and IV Ans:I and IV
31	The total number of protons removed from mitochondrial matrix during aerobic breakdown of a molecule of Glucose is 120 144 128 104 Ans:128
32	The following particle of inner membrane of mitochondrion allows the movement of protons down the concentration gradient. UQ Complex IV F0 F1 Ans:F0
33	Match the following with respect to Inner membrane of Mitochondrion during ETS A - V, B - III, C - II, D -I A - IV, B - III, C - II, D -I A - V, B - IV, C - II, D -III A - IV, B - II, C - I, D -V Ans:A - V, B - III, C - II, D -I
34	Study the following table and choose the correct combination with respect to ETS I and II III and IV I and III II and IV Ans:II and IV
35	[A]: Reduced UQ always gives e- to complex III [R]: It picks e- only from Complex I and Complex II Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:A is true but R is false
36	The following electron carrier of ETS is not exposed towards intermembrane space of Mitochondrion Complex I Complex II Ctochrome C Complex III Ans:Complex II
37	During ETS, O2 picks protons from Complex IV matrix perimitochondrial space UQ Ans:Complex IV
38	Rotatory movement is shown by Cytochrome C F1 F0 UQ Ans: F1
39	If a molecule of Acetyl Co.A is aerobically oxidized, the no.of ATP formed in F1 would be 24 11 12 14 Ans:11
40	[A]: There is no net production of NADH + H+ in anaerobic respiration [R]: Anaerobic respiration lacks oxidation reactions Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:A is true but R is false
41	The term fermentation was given by Pasteur Gaylussac Mitchel Ganong Ans:Pasteur
42	Amount of energy lost as heat during anaerobic oxidation of a molecule of Glucose is 56 K.Cal 40.8 K.Cal 15.2 K.Cal 50 K.Cal Ans:40.8 K.Cal
43	Ratio between decarboxylation reactions of Aerobic and anaerobic respirations is 3:1 2:1 2:3 1:1 Ans:3:1
44	Clostridium botulinum is Obligate anaerobe Facultative anaerobe Faculatative aerobe Obligate aerobe Ans:Obligate anaerobe
45	Arrange the following reactions of anaerobic respiration in a sequence. I. Oxidation II. Reduction III. Substrate level phosphorylation IV. Decarboxylation III, I, IV, II I, III, IV, II I, IV, III, II IV, I, II, III Ans:I, III, IV, II
46	If the chemical formula of a respiratory substrate is C75H160O50, the respiratory substrate must be a Protein Organic acid Lipid Carbohydrate Ans:Protein
47	Arrange the following respiratory substrate with gradual increase in its R.Q. I. Tartaric acid II. Oleic acid III. Fructose IV. Malic acid II, IV, III, I III, II, IV, I II, III, IV, I I, IV, III, II Ans:II, III, IV, I
48	Ganongs respirometer is used to estimate Respiratory Quotient Photorespiration Anaeorobic respiratory rate Aerobic respiratory rate Ans:Respiratory Quotient
49	The highest number of H2O molecules are released during the oxidation of Oleic acid Tripalmitin Glucose Triolein Ans:Triolein
50	The R. Q. for these respiratory intermediates is same I. Acetyl Co.A II. PEP III. GAP IV. Malic acid I and II II and III III and IV I and III Ans:I and III
51	Arrange the following respiratory substrate with gradual increase in the consumption of O2 during each of its molecule oxidation. I. Oxalic acid II. Oleic acid III. Tartaric acid IV. Glucose IV, III, II, I I, III, II, IV I, III, IV, II III, I, IV, II Ans:I, III, IV, II
52	Match the following A - II, B - III, C - IV, D - I A - II, B - I, C - III, D - IV A - III, B - I, C - IV, D - V A - II, B - I, C - IV, D - V Ans:A - II, B - I, C - IV, D - V
53	Study the following table and choose the correct combination A-IV, B-III, C-V, D-II A-IV, B-III, C-I, D-II A-V, B-III, C-I, D-II A-II, B-IV, C-III, D-I Ans:A-IV, B-III, C-I, D-II
54	[A]: R.Q. of Triolein is less than the R.Q of Glucose [R]: Triolein has less number of Oxygen atoms per molecule than Glucose Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:A is true but R is false
55	Study the following table and choose the correct combination I and II III, IV II, IV I, III Ans:II, IV
56	[A]: R.Q. of fats is lesser than that of organic acids. [R]: The number of O2 atoms in a molecule of Tripalmitin is equal to the number of oxygen atoms in Tartaric acid. Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A A is true but R is false A is false but R is true Ans:Both A and R are true but R is not the correct explanation of A