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Which of the following are the most abundant elements in the living cells? A C, H, S and P B C, O, N and P C C, H, O and N D C, H, Mg and Ca

Which of the following are the most abundant elements in the living cells?

A

C, H, S and P

B

C, O, N and P

C

C, H, O and N

D

C, H, Mg and Ca

 

Grade:12

1 Answers

Omveer Singh
askIITians Faculty 52 Points
3 years ago

The most common elements in living things are carbon, hydrogen, oxygen, nitrogen. 
A carbohydrate is a biological molecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms.
Proteins are made up of amino acids which are organic compounds  (C, H, and O) containing amine (-NH2), along with a side chain (R group) specific to each amino acid.
Each nucleotide consists of a nitrogen-containing aromatic base attached to a pentose sugar (C, H, and O), which is in turn attached to a phosphate group. 

 
So, major macromolecules consist of C, H, O and N and hence, are the most abundant elements in living cells.
Thus, the correct answer is option (C). 

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