The enzymes present in the membrane of mitochondria are 

(A) Flavoproteins and cytochromes 

(B) Fumarase and lipase 

(C) Enolase and catalase 

(D) Hexokinase and zymase

An enzyme in saliva which hydrolyzes starch is 

(A) Pepsinogen 

(B) Chymotrysin 

(C) α-Amylase 

(D) Malate

Enzymes functional in cell or mitochondria are 

(A) Endoenzymes 

(B) Exoenzymes 

(C) Apoenzymes 

(D) Holoenzymes

Which enzyme hydrolyses starch? 

(A) Invertase 

(B) Maltase 

(C) Sucrase 

(D) Diastase

In competitive inhibition which of the following kinetic effect is true ? 

(A) Decreases both K_m and V_max 

(B) Increases both K_m and V_max 

(C) Decreases K_m without affecting V_max 

(D) Increases K_m without affecting V_max

In enzyme assays, all the following are kept constant except 

(A) Substrate concentration 

(B) Enzyme concentration 

(C) pH 

(D) Temperature

The abnormal isoenzyme need not 

(A) Be an oxidoreductase 

(B) Have any coenzyme

(C) Require ATP

(D) Be localized intracellularly 

(E) Be a catalyst

The presence of a non competitive inhibitor 

(A) Leads to both an increase in the V_max of a reaction and an increase in K_m 

(B) Leads to a decrease in the observed V_max 

(C) Leads to a decrease in K_m and V_max 

(D) Leads to an increase in K_m without affecting V_max

In competitive inhibition of enzyme action 

(A) The apparent K_m is decreased 

(B) The apparent K_m is increased 

(C) V_max is decreased 

(D) Apparent concentration of enzyme molecules decreased

LDH assays are most useful in diagnosing diseases of the 

(A) Heart 

(B) Pancreas 

(C) Brain 

(D) Kidney