General Reaction Kinetics for Biological Systems MCQ

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• In a particular enzyme-catalyzed reaction, Vmax = 0.2 mol/sec and Km = 6 mM. Assume the enzyme shows standard Michaelis-Menten kinetics. What is the rate of the reaction when = 20 mM?
  ক

  = 20 mM? ] 0.155

  খ

  S

  গ

  S

  ঘ

  S
• In a particular enzyme-catalyzed reaction, Vmax = 0.2 mol/sec and Km = 5 mM. Assume the enzyme shows standard Michaelis-Menten kinetics. What is the rate of the reaction when = 10 mM?
  ক

  = 10 mM? ] 0.133

  খ

  S

  গ

  S

  ঘ

  S
• The rate limiting step of Michaelis Menten kinetics is _________
  ক

  Complex formation step

  খ

  Non-complex formation step

  গ

  Complex dissociation step

  ঘ

  Non- complex dissociation step
• Linear inhibition is sometimes called as ____________
  ক

  Complete inhibition

  খ

  Partial inhibition

  গ

  Incomplete inhibition

  ঘ

  Mixed inhibition
• Unbinding of Enzyme- Substrate complex increases the reaction rate.
  ক

  True

  খ

  False
• Catalytic efficiency is defined as__________
  ক

  kcat/KM

  খ

  KM/kcat

  গ

  Km/k0

  ঘ

  Km/k1
• Convert 35 K into °C.
  ক

  230.18

  খ

  238.15

  গ

  -230.18

  ঘ

  -238.15
• Convert 35°C into K.
  ক

  300.08 K

  খ

  305.18 K

  গ

  308.15 K

  ঘ

  315.18 K
• High substrate concentration follows which order?
  ক

  Zero order

  খ

  First order

  গ

  Zero- Second order

  ঘ

  Second order
• What do you mean by the “Turn- over number”?
  ক

  Occurrence of saturation

  খ

  Conversion of amount of substrate into product

  গ

  Conversion of amount of product into substrate

  ঘ

  Enzyme unbound with substrate
• Refer to Q3, and estimate the unit of Km?
  ক

  kg mol m-2

  খ

  kg mol

  গ

  kg mol m-1

  ঘ

  kg mol m-3
• The following enzyme reaction is applicable for which order?
  ক

  Zero order

  খ

  Zero-First order

  গ

  Zero-Second order

  ঘ

  First order
• The relationship between reaction rate and reactant concentration is of which order from the following relation? rA = k1 CA
  ক

  Zero order

  খ

  First order

  গ

  Zero-First order

  ঘ

  Second order
• Which order represents Michelis-Menten kinetics?
  ক

  First-Second order

  খ

  Zero-First order

  গ

  Zero-Second order

  ঘ

  Second order