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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Fructose reduces Tollen's reagent due to:

1. Primary alcoholic group
2. Secondary alcoholic group
3. Enolisation of fructose followed by conversion to aldehyde by base
4. Asymmetric carbon
Subtopic:  Carbohydrates - Classification & D-L configuration |
 69%
From NCERT
AIPMT - 2010
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Which of the following is not a fat-soluble vitamin?

1. Vitamin A 

2. Vitamin B complex

3. Vitamin D 

4. Vitamin E

Subtopic:  Vitamins, Hormones & Enzymes |
 93%
From NCERT
AIPMT - 2011
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The correct statements regarding "Denaturation" are:

(a) Denaturation of proteins causes the loss of secondary and tertiary structures of the protein. 
(b) Denaturation leads to the conversion of a double strand of DNA into a single strand.
(c) Denaturation affects the primary structure which gets distorted.


1. (a), (b) and (c)
2. (b) and (c)
3. (a) and (c)
4. (a) and (b)

Subtopic:  Denaturation of Proteins & Chemical Properties |
 84%
From NCERT
AIPMT - 2011
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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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α-D-glucose and β-D-glucose are:

1. Epimers

2. Anomers

3. Functional isomers

4. Chain isomers

Subtopic:  Carbohydrates - Classification & D-L configuration |
 83%
From NCERT
AIPMT - 2000
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The base found in DNA but not in RNA:

1. Thymine 2. Adenine
3. Guanine 4. Cytosine
Subtopic:   DNA, RNA & Metal Ions |
 92%
From NCERT
AIPMT - 1998
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Sucrose on hydrolysis gives:

1. L(+) Glucose + D(+) Fructose
2. L(–) Glucose + L(–) Fructose
3. D(+) Glucose + D(–) Fructose
4. D(+) Glucose + L(–) Fructose

Subtopic:  Carbohydrates - Classification & D-L configuration |
 66%
From NCERT
AIPMT - 1999
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The compound that does not reduce Fehling solution is:
1. Glucose
2. Fructose
3. Sucrose
4. Maltose

Subtopic:  Polysaccharides & their Importance |
 85%
From NCERT
AIPMT - 1999
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The hormone that helps in the conversion of glucose to glycogen is:

1. Bile acids

2. Adrenaline

3. Insulin

4. Cortisone 

Subtopic:  Vitamins, Hormones & Enzymes |
 79%
From NCERT
AIPMT - 2004
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