The incorrect statements regarding enzymes are :
(A) Enzymes are biocatalysts.
(B) Enzymes are non-specific and can catalyse different kinds of reactions.
(C) Most Enzymes are globular proteins.
(D) Enzyme - oxidase catalyses the hydrolysis of maltose into glucose.
Choose the correct answer from the option given below :

Solution

Chemistry ma’am · 2 steps

Test each statement on its own, then find the option that lists exactly the false ones.

1. Check each statement. Enzymes are proteins that speed up reactions inside living cells. Two facts decide this question: each enzyme works on one particular reaction, and an enzyme's name tells you which reaction that is.

   Statement	True or false	Reason
   (A) Biocatalysts	True	They are catalysts made by living cells.
   (B) Non-specific	False	Enzymes are highly specific. Each fits only its own substrate and catalyses one kind of reaction.
   (C) Mostly globular proteins	True	Almost all enzymes are globular proteins.
   (D) Oxidase hydrolyses maltose	False	Maltase hydrolyses maltose into glucose. An oxidase catalyses oxidation, not hydrolysis.

2. So. The incorrect statements are (B) and (D), which is option (a).

The idea to keep. An enzyme's name tells you its job: maltase splits maltose, sucrase (invertase) splits sucrose, and an oxidase oxidises. Enzymes are also highly specific, so each one catalyses only its own reaction.

Answer from the NTA final answer key. Solution by PrepWiser.