K_ m of enzyme is: - Vidyadip

MCQ

$\mathrm{K}_{\mathrm{m}}$ of enzyme is:

✓
The substrate concentration at $1/2$ of maximum velocity of enzyme action.
B
The substrate concentration at maximum velocity of enzyme action.
C
Half of maximum velocity of enzyme at unit substrate concentration at infinite velocity of enzyme action.
D
Substrate concentration at infinite velocity of enzyme action.

✓

Answer

Correct option: A.

The substrate concentration at $1/2$ of maximum velocity of enzyme action.

The Michaelis Menten constant is the substrate concentration at which the reaction rate is one half the maximum.
The $\mathrm{K}_{\mathrm{m}}$ describes the affinity of enzyme for a substrate molecule.
Greater the affinity lower is the $\mathrm{K}_{\mathrm{m}}$ value and sooner the $\mathrm{V}_{\max }$ can be attained and vice versa.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Biomolecules→Biomolecules — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

When formaldehyde is heated with phenol in the presence of an alkali, the product formed is:

Methyl alcohol can be distinguished from ethyl alcohol using

The correct increasing order of trans-effect of the following species is

An example of a disaccharide is:

Reaction of phenol with chloroform in presence of dilute sodium hydroxide finally introduces which one of the following functional group ?

Considering ${H_2}O$ as a weak field ligand, the number of unpaired electrons in ${[Mn{({H_2}O)_6}]^{2 + }}$ will be (At. No. of $Mn = 25$)

An aqueous solution containing $\mathrm{V}^{\mathrm{x}+}$ ion has magnetic moment equal to $\sqrt{15\text{BM}}$ Therefore, the $x$ is:

What sequence of reagents is required to accomplish the following transformation ?

Fluorine is a stronger oxidising agent than chlorine in aqueous solution. This is attributed to many factors except

In the Victor-Meyer's test, the colour given by $1^o, 2^o$ and $3^o$ alcohols are respectively