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 |
 72%
Level 2: 60%+
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%
Level 1: 80%+
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 |
 86%
Level 1: 80%+
AIPMT - 2011
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During the process of digestion, the proteins present in food materials are hydrolyzed to amino acids. The two enzymes involved in the process amino acids

1. pepsin and trypsin

2. invertase and zymase

3. amylase and maltase

4. diastase and lipase

Subtopic:  Vitamins, Hormones & Enzymes |
 87%
Level 1: 80%+
Please attempt this question first.
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Please attempt this question first.

During the process of digestion, the proteins present in food materials are hydrolysed to amino acids. The two enzymes involved in the process

ProteinsEnzyme(A)Polypeptides
Enzyme(B)Aminoacids,

are respectively                

1. amylase and maltase

2. diastase and lipase

3. pepsin and trypsin

4. invertase and zymase

पाचन के प्रक्रम के दौरान, खाद्य पदार्थों में उपस्थित प्रोटीन को एमीनो अम्ल में जलअपघटित किया जाता है। प्रक्रम में शामिल दो एंजाइम

प्रोटीनएंजाइम(A)पॉलीपेप्टाइड
एंजाइम(B) एमीनो अम्ल,

क्रमशः हैं

(a) एमाइलेज और माल्टेज़

(b) डायस्टेज़ और लाइपेज़

(c) पेप्सिन और ट्रिप्सिन

(d) इन्वर्टेज़ और ज़ाइमेज़

Subtopic:  Vitamins, Hormones & Enzymes |
 89%
Level 1: 80%+
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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%
Level 1: 80%+
AIPMT - 2000
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Glucose +x Phenyl hydrazine → Osazone 'x' will be:

1.  2
2.  3
3.  4
4.  1

Subtopic:  Polysaccharides & their Importance |
 66%
Level 2: 60%+
AIPMT - 1998
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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 |
 93%
Level 1: 80%+
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 |
 68%
Level 2: 60%+
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 |
 86%
Level 1: 80%+
AIPMT - 1999
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