Cell Cycle and Cell DivisionHard

Question

In which one of the following is nitrogen not a constituent ?

Options

A.Pepsin
B.Idioblast
C.Bacteriochlorophyll
D.Invertase

Solution

dioblast seems to be most appropiate (not correct) choice. invertase and pepsin are proteins (contain nitrogen), bacteriochlorofhyll also contains nitrogan. Idioblasts are crystals of calcium oxalate, called raphides.

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