Biology Mcqs

If more substrate to already occurring enzymatic reaction is added more enzyme activity is seen because_____________?

(A) There is probably more substrate present than there is enzyme.

(B) There is probably more enzayme available than there is substrate.

(C) There is probably more product present than there is either substrate or enzyme.

(D) The enzyme substrate complex is probably failing to form during the reaction

Submitted By: Ali Uppal


Cellular organelles related with H2O2 are___________?

(A) Glyoxisomes

(B) Lysosomes

(C) Peroxisomes

(D) Ribosomes

Submitted By: Ali Uppal


Submitted By: Ali Uppal


Which statement about enzyme is incorrect_________________?

(A) Some of them consist solely of protein with no non protein part.

(B) They catalyze a chemical reaction without being utilized.

(C) All enzymes are fibrous Proteins.

(D) They without their cofactor are called apoenzym

Submitted By: Ali Uppal


Submitted By: Ali Uppal


An activated enzyme consisting of polypeptide chain and a cofactor is called_______________?

(A) Apoenzyme

(B) Holoenzyme

(C) Activated enzyme

(D) Both b and c

Submitted By: Ali Uppal


A cofactor made of inorganic ion which is detachable is called__________________?

(A) Prosthetic group

(B) Coenzyme

(C) Activator

(D) Cofactor

Submitted By: Ali Uppal


In golgi apparatus the maturing face is____________?

(A) Biconcave

(B) Convex

(C) Spherical

(D) Concave

Submitted By: Ali Uppal


If enzyme concentration is low than substrate pH and temperature values are equal to requirement then which of the following will increase rate of reaction____________________?

(A) increase in concentration of enzyme

(B) increase in concentration of substrate

(C) increase in pH

(D) increase in temperature

Submitted By: Ali Uppal


Excessive increase in temperature of medium causes the enzyme molecule to____________?

(A) Activate

(B) Unaffected

(C) Denatured

(D) None of these

Submitted By: Ali Uppal