Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is:

1. Sr 2. Be
3. Mg 4. Ca

Subtopic:  Vitamins, Hormones & Enzymes |
 81%
From NCERT
NEET - 2019
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The non-essential amino acid among the following is:
1. Lysine
2. Valine
3. Leucine
4. Alanine

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 66%
From NCERT
NEET - 2019
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The two forms of D-Glucopyranose are called : 


1. Anomers

2. Epimers

3. Enantiomers

4. Diastereoisomers

Subtopic:  Carbohydrates - Classification & D-L configuration |
 79%
From NCERT
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Cellulose upon acetylation with excess acetic anhydride/H2SO4 (catalytic) gives cellulose triacetate whose structure is –

Subtopic:  Carbohydrates - Classification & D-L configuration |
 58%
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Waxes are esters of:

1. Glycerol and fatty acid.

2. Long-chain alcohols and long-chain fatty acids.

3. Glycerol.

4. Long-chain alcohol.

Subtopic:  Polysaccharides & their Importance |
 53%
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The incorrect statement among the following options is: 

1. Chlorophyll is responsible for the synthesis of carbohydrates in plants.

2. The compound formed by the addition of oxygen to hemoglobin is called oxyhemoglobin.

3. Acetylsalicylic acid is known as aspirin.

4. The metal ion present in vitamin B12 is Mg++

Subtopic:  Vitamins, Hormones & Enzymes |
 73%
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An optically inactive amino acid is-

1. Lactic acid 2. Serine
3. Alanine 4. Glycine
Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 86%
From NCERT
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A linkage present in proteins and peptides is:

1. 2.
3. 4.
Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 86%
From NCERT
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An acids among the followingthat acts as vitamin is:

1. Benzoic acid

2. Ascorbic acid

3. Oxalic acid

4. Formic acid

Subtopic:  Vitamins, Hormones & Enzymes |
 89%
From NCERT
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Insulin regulates the metabolism of : 

1. Minerals 2. Amino acids
3. Glucose 4. Vitamins
Subtopic:  Vitamins, Hormones & Enzymes |
 86%
From NCERT
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