Question

Pick odd one out.

(a) α – amylase

(b) α – 1 macroproteinase

(c) Transaminase

(d) Proteinase

I got this question in an international level competition.

Question is taken from Clinical Significance of Amylase, Transaminase and Proteinases topic in section Clinical Enzymology of Enzyme Technology

Answer 1

Correct option is (b) α – 1 macroproteinase

The best I can explain: The odd one out is α – 1 macroproteinase as the other three namely, α – amylase, transaminase, proteinase are enzymes. α – 1 macroproteinase is an anti-proteinase which keeps a check on the activity of proteinases. Proteinases are the enzymes which hydrolyze elastin, various types of collagen and other proteins present in it. α-amylase hydrolyzes α-1,4 linkages in starch and glycogen to yield maltase. Transaminase are the enzymes which are involved in transfer of aminoacids.