Bioenergetics and Metabolism Miscellaneous Easy Questions and Answers | Page - 1

Bioenergetics and Metabolism Miscellaneous

Energy capture efficiency of the aerobic cells using glucose as a substrate is

1. 50%
1. 40%
1. 30%
1. 20%

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Complete aerobic metabolism of glucose produces water and carbon dioxide as products.
C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6 H₂O
Energy is released in this process. The overall “G of glucose breakdown is -720 kcal/mole. Normally about 32% of the energy is released is captured through the formation of ATP the remainder is released as heat.

Correct Option: C

Complete aerobic metabolism of glucose produces water and carbon dioxide as products.
C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6 H₂O
Energy is released in this process. The overall “G of glucose breakdown is -720 kcal/mole. Normally about 32% of the energy is released is captured through the formation of ATP the remainder is released as heat.

The maximum reaction velocity (V_m) for an enzyme catalyzed reaction was experimentally measured at two different temperatures and following results obtained : Temperature, °C 27 37
V_m mmol m^–3 2.25 4.50
The energy of activation for the reaction is

1. 12834 cal mol^–1
1. 25668 cal mol^–1
1. 6417 cal mol^–1
1. 19251 cal mol^–1

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log K₂ = K_α T² - T₁
K₁ 2.303 R T₁ T₂

log (2) = E_a (10)
2.303 × 1.986(300 × 310)

E_α = 0.3010 × 425359.5
10

= 12803.3 cal mol^–1

Correct Option: A

log K₂ = K_α T² - T₁
K₁ 2.303 R T₁ T₂

log (2) = E_a (10)
2.303 × 1.986(300 × 310)

E_α = 0.3010 × 425359.5
10

= 12803.3 cal mol^–1

28. What product will result from complete hydrolysis of soluble dextran ?

1. Sucrose only
1. Fructose only
1. Glucose and fructose only
1. Glucose only

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Complete hydrolysis of dextran yield solely β-dglucose i.e., hydrolysis is accompanied by inversion at carbon-1 in such a way that new reducing ends are released only in the β-configuration.

Correct Option: D

Complete hydrolysis of dextran yield solely β-dglucose i.e., hydrolysis is accompanied by inversion at carbon-1 in such a way that new reducing ends are released only in the β-configuration.

The respiratory coefficient for the reaction
aCH_mO_n + bO₂ + cNH₃ ? dCH_aO_ßN_?+ eH₂O + ƒCO₂ is defined as

1. ƒ/a
1. e/b
1. b/ƒ
1. ƒ/b

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The respiratory quotient (RQ) is calculated from the ratio RQ = CO₂ eliminated / O₂ consumed where the term "eliminated" refers to carbon dioxide (CO₂) removed ("eliminated") from the body. So, RQ for the equation is ƒ/b

Correct Option: D

The respiratory quotient (RQ) is calculated from the ratio RQ = CO₂ eliminated / O₂ consumed where the term "eliminated" refers to carbon dioxide (CO₂) removed ("eliminated") from the body. So, RQ for the equation is ƒ/b

Match items in group 1 with correct examples from those in group 2
Group 1 Group 2
P. Catabolic product 1. Griseofulvin
Q. Bioconversion 2. Bakers yeast
R. Biosynthetic product 3. 6-Aminopenici- llanic acid
S. Cell mass 4. Ethanol

1. P-4, Q-3, R-2, S-l
1. P-3, Q-4, R-l, S-2
1. P-4, Q-3, R-l, S-2
1. P-l, Q-4, R-3, S-2

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Bioconversed product is 6 Amiono penicillinic Acid, Grisseofuvin is biosynthetic product, Bakers yeast have definite cell mass ie Biomass and Ethanol is a catabolic product.

Correct Option: C

Bioconversed product is 6 Amiono penicillinic Acid, Grisseofuvin is biosynthetic product, Bakers yeast have definite cell mass ie Biomass and Ethanol is a catabolic product.