Which structure(s) of proteins remains(s) intact during denaturation process?

1. Both secondary and tertiary structures

2. Primary structure only

3. Secondary structure only

4. Tertiary structure only

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 80%
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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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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Sucrose on hydrolysis gives:

1. α-D-Glucose + β-D-Glucose

2. α-D-Glucose + β-D-Fructose

3. α-D-Fructose + β-D-Fructose

4. β-D-Glucose + α-D-Fructose

Subtopic:  Polysaccharides & their Importance |
 85%
From NCERT
NEET - 2020
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Which of the following metal ions activates many enzymes participating in the oxidation of glucose to produce ATP and with Na it is also responsible for the transmission of nerve signals:

1. Copper

2. Calcium

3. Potassium

4. Iron

Subtopic:  Vitamins, Hormones & Enzymes |
 76%
From NCERT
NEET - 2020
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Which of the following is a basic amino acid?

1. Alanine

2. Tyrosine

3. Lysine

4. Serine 

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 86%
From NCERT
NEET - 2020
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The reaction of concentrated sulphuric acid with carbohydrates (C12H22O11) is an example of:

1. Dehydration 2. Oxidation
3. Reduction 4. Sulphonation
Subtopic:  Polysaccharides & their Importance |
 62%
From NCERT
NEET - 2020
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Deficiency of which vitamin causes osteomalacia ?

1. Vitamin A 2. Vitamin D
3. Vitamin K 4. Vitamin E
Subtopic:  Vitamins, Hormones & Enzymes |
 79%
From NCERT
NEET - 2020
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Which of the following statement is not true about glucose?

1. It is an aldohexose.

2. It contains five hydroxyl groups.

3. It is a reducing sugar.

4. It is an aldopentose.

Subtopic:  Carbohydrates - Classification & D-L configuration |
 79%
From NCERT
NEET - 2020
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The RBC deficiency is a deficiency disease of:

1. Vitamin B1 2. Vitamin B2
3. Vitamin B12 4. Vitamin B6
Subtopic:  Vitamins, Hormones & Enzymes |
 85%
From NCERT
NEET - 2021
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