How many types of amino acids are found in li | vedclass

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(B) $\Rightarrow$ Amino acids are organic compounds containing an amino group and an acidic group as substituents on the same carbon,i.e.,the $\alpha$

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$20$

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(B) $\Rightarrow$ Amino acids are organic compounds containing an amino group and an acidic group as substituents on the same carbon,i.e.,the $\alpha$-carbon. Hence,they are called $\alpha$-amino acids.$\Rightarrow$ There are four substituent groups occupying the four valency positions of the $\alpha$-carbon. These are hydrogen,a carboxyl group,an amino group,and a variable group designated as the $R$ group.$\Rightarrow$ Based on the nature of the $R$ group,there are many amino acids,but only $20$ types of amino acids are commonly found in the proteins of living organisms.

List-$I$	List-$II$
$(1)$ Non-polar $R$ group	$(a)$ Tyrosine
$(2)$ Polar positive $R$ group	$(b)$ Glutamic acid
$(3)$ Polar negative $R$ group	$(c)$ Histidine
$(4)$ Polar uncharged $R$ group	$(d)$ Tryptophan

How many types of amino acids are found in living organisms?

Similar Questions

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Select the correct option for the following matches:
List-$I$ List-$II$
$(1)$ Non-polar $R$ group $(a)$ Tyrosine
$(2)$ Polar positive $R$ group $(b)$ Glutamic acid
$(3)$ Polar negative $R$ group $(c)$ Histidine
$(4)$ Polar uncharged $R$ group $(d)$ Tryptophan

Which bond is repeatedly found in the structure of a polypeptide?

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