BiomoleculesHard
Question
The four elemrnts making 99% of living system are
Options
A.CHOS
B.CHOP
C.CHON
D.CNOP
Solution
Carbon, hydrogen, oxygen and nitrogen are called as big four of the cell. C is 18 %, O is 65%, H is 10 % and N is 2.5 % These are principal non-metal elements and form 95 % of total cellular materials.
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