Cheilosis occurs due to a deficiency of:
1. Thiamine  2. Nicotinamide 
3. Pyridoxamine  4. Riboflavin 

Subtopic:  Vitamins, Hormones & Enzymes |
 67%
From NCERT
NEET - 2023
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Given below are two statements: 
Statement I:  A unit formed by the attachment of a base to 1' position of sugar is known as a nucleoside.
Statement II:  When nucleoside is linked to phosphorous acid at 5' position of sugar moiety we get nucleotide.
In the light of the above statements choose the correct answer from the options given below:
1.  Statement I is false but Statement II is true.
2.        Both Statement I and Statement II are true.
3.  Both Statement I and Statement II are false.
4. Statement I is true but Statement II is false.
Subtopic:   DNA, RNA & Metal Ions |
From NCERT
NEET - 2023
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The incorrect statement about the denaturation of proteins is:
1. It results due to change of temperature and pH.
2. It results in the loss of biological activity of proteins.
3. A protein is formed from amino acids linked by peptide bonds.
4. Uncoiling of the helical structure takes place.
Subtopic:  Denaturation of Proteins & Chemical Properties |
 66%
From NCERT
NEET - 2022
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Which one is not a D-sugar:

1. 2.
3. 4.
Subtopic:  Carbohydrates - Classification & D-L configuration |
 67%
From NCERT
NEET - 2022
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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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Which is the correct statement among the following?

1. Starch is a polymer of α-glucose 
2. Amylose is a component of cellulose
3. Proteins are composed of only one type of amino acid
4. In the cyclic structure of fructose, there are four carbons and one oxygen atom
Subtopic:  Polysaccharides & their Importance |
 62%
From NCERT
AIPMT - 2001
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A compound that gives a positive Fehling solution test is: 

1. Sucrose 2. Glucose
3. Fats 4. Protein
Subtopic:  Polysaccharides & their Importance |
 85%
From NCERT
AIPMT - 2001
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Among the following, reducing sugar is:

1. Galactose

2. Gluconic acid

3. β-methyl galactoside

4. Sucrose

Subtopic:  Polysaccharides & their Importance |
 70%
From NCERT
AIPMT - 2002
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Which is not a true statement:
 

1. α-carbon of α-amino acid is asymmetric except glycine.
2. Some proteins of human body are found in L-form
3. Human body can synthesize all proteins they need
4. At pH = 7 both amino and carboxylic groups exist in ionized form
Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
From NCERT
AIPMT - 2002
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Enzymes are made up of:

1. Edible proteins.

2. Proteins with specific structures.

3. Nitrogen-containing carbohydrates.

4. Carbohydrates.

Subtopic:  Vitamins, Hormones & Enzymes |
 92%
From NCERT
AIPMT - 2002
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