Question
How is peptide linkage $($dipeptide linkage$)$ formed in proteins? How is tripeptide formed?
✓
Answer
Peptide linkage is formed by condensation of acidic 
group of one molecule of $a-$amino acid and basic $NH_2$ group of other molecule of $\alpha -$amino acid with elimination of water.
When one more molecule of amino acid combines with dipeptide, it forms tripeptide.
Thus, it forms tetra, penta and finally a polypeptide chain i.e. proteins. Hence, proteins are basically polypeptides.
group of one molecule of $a-$amino acid and basic $NH_2$ group of other molecule of $\alpha -$amino acid with elimination of water.When one more molecule of amino acid combines with dipeptide, it forms tripeptide.
Thus, it forms tetra, penta and finally a polypeptide chain i.e. proteins. Hence, proteins are basically polypeptides.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
What are the characteristic properties of solids?
$0.022\ kg$ of $CO_2$ is compressed isothermally and reversibly at $298\ K$ from an initial pressure of $100\ kPa$ when the work obtained is $1200\ J$, calculate the final pressure.
→Which of the following will have highest fourth ionisation enthalpy,$La^{4+}, Gd^{4+}, Lu^{4+}.$
→What is zeroth-order reaction? Derive its integrated rate law. What are the units of rate constant?
How are following compounds prepared using Gngnard reagent
(1) Acetone
(2) Benzophenone?
(1) Acetone
(2) Benzophenone?
Predict the products when
$(1)$ dimethyl acetylene
$(2)$ ethyl acetylene and
$(3)$ diethyl acetylene are treated with mercuric sulphate in dilute sulphuric acid.
→$(1)$ dimethyl acetylene
$(2)$ ethyl acetylene and
$(3)$ diethyl acetylene are treated with mercuric sulphate in dilute sulphuric acid.
What is the action of mixture of $NaNO_2$ and $dil.HCl$ on:
$(a)$ Ethylamine $(b)$ Aniline $(c)$ Diethylamine
→$(a)$ Ethylamine $(b)$ Aniline $(c)$ Diethylamine
Write one example of each of ionisation, linkage and hydrated isomerism.
Explain why is cobalt chloride pink in colour when dissolved in water but turns deep blue when treated with concentrated hydrochloric acid.
Draw a well labelled diagram of a conductivity cell. Also write net cell reactions involved in electrolysis of aqueous NaCl.