Proteins contain which of the following elements?
- A$C, H, O$ and $N$
- BOnly $C$ and $H$
- C$Cl, H$ and $O$
- DAll of these
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Similar Questions
Match List-$I$ with List-$II$.
List-$I$ (Natural amino acid) List-$II$ (Code) $A$. Glutamic acid $I$. $Q$ $B$. Glutamine $II$. $W$ $C$. Tyrosine $III$. $E$ $D$. Tryptophan $IV$. $Y$
| List-$I$ (Natural amino acid) | List-$II$ (Code) |
|---|---|
| $A$. Glutamic acid | $I$. $Q$ |
| $B$. Glutamine | $II$. $W$ |
| $C$. Tyrosine | $III$. $E$ |
| $D$. Tryptophan | $IV$. $Y$ |
Identify the essential amino acid from the following.
For $\alpha$-amino acids having the structure $R-CH(NH_2)-CO_2H$,which of the following statements are true?
$(a)$ Water solubility is maximum at a $pH$ when concentrations of anions and cations are equal.
$(b)$ They give ninhydrin test.
$(c)$ On reacting with nitrous acid,they give off $N_2$.
$(a)$ Water solubility is maximum at a $pH$ when concentrations of anions and cations are equal.
$(b)$ They give ninhydrin test.
$(c)$ On reacting with nitrous acid,they give off $N_2$.
Medium
View SolutionIdentify the basic amino acid.
Easy
View SolutionHow many tripeptides can be prepared by linking the amino acids glycine,alanine and phenylalanine?
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