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NEET UG BIOLOGY MCQ: BIOMOLECULES
1
Medium
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Analyzing
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Read the following statements carefully and select the appropriate option given below.
(i) Plant cell wall consists of cellulose, hemicellulose, pectins and proteins.
(ii) As there are 20 types of amino acids, a protein is a heteropolymer and not a homopolymer.
(iii) Amino acids are organic compounds containing an amino group and a basic group as substituents on the same carbon.
(iv) The long protein chain is also folded upon itself like a hollow woollen ball, giving rise to the tertiary structure.
(v) In a polysaccharide, the individual monosaccharides are linked by a glycosidic bond.
(i) Plant cell wall consists of cellulose, hemicellulose, pectins and proteins.
(ii) As there are 20 types of amino acids, a protein is a heteropolymer and not a homopolymer.
(iii) Amino acids are organic compounds containing an amino group and a basic group as substituents on the same carbon.
(iv) The long protein chain is also folded upon itself like a hollow woollen ball, giving rise to the tertiary structure.
(v) In a polysaccharide, the individual monosaccharides are linked by a glycosidic bond.
View answer and explanation
Correct option: C
All are correct except (iii)
Option C (All are correct except (iii)) is correct because amino acids contain an amino group and a *carboxyl* group, not a basic group, as substituents on the same carbon.
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