Choose the correct options
E + S → ES → E + P →EP
E + S ⇌ ES → E - P → E + P
E + S → ES ⇌ E - P → E + P
E + S ⇌ ES ⇌ E - P ⇌E+P
Related Questions
Which of the following statements about enzymes are correct?
I. Enzymes do not alter the overall change in free energy for a reaction
II. Enzymes are highly specific for reactions
III. The energy input needed to start a chemical reaction is called activation energy
IV. Enzymes are proteins whose three dimensional shape is key to their functions
I and II only
III and IV only
I, II, and III only
I, II, III, and IV
Enzymes that catalyze inter-conversion of optical, geometrical or positional isomers, are
Ligases
Lyases
Hydrolases
Isomerases
In which one of the following sets of three items each belong to the category mentioned against them?
Iron, Silver, Gold : Metals
Mercury, Bromine, Water : Metals
Hydrogen, Oxygen, Nitrogen : Metals
Brass, Bronze, Air : Metals
Allosteric modulation is due to inhibition action of enzyme by
Competitive inhibition
Substrate concentration
Products of reaction
Enzyme concentration
How does radiations inactivates enzymes?
By destroying tertiary structure
By destroying primary structure
Both (a) and (b)
None of the above
Which of the following statements about ribozymes is INCORRECT?
They are composed of protein.
They can catalyze biological reactions.
They are a type of RNA.
They can act as enzymes.
Which of the following is a competitive inhibitor of succinic dehydrogenase?
Cyanide
Arsenic
Malonate
Fluoride
Which of the following is NOT a step in the catalytic cycle of an enzyme?
Substrate binding to the active site.
Release of products.
Formation of the enzyme-substrate complex.
Denaturation of the enzyme
The 'lock and key' model of enzyme action describes:
The flexibility of the enzyme's active site.
The specific fit between enzyme and substrate.
The change in enzyme shape upon substrate binding.
The allosteric regulation of enzyme activity.
A non-proteinaceous enzyme is
deoxyribonuclease
lysozyme
Ribozyme
ligase
