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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Which one of the following is a peptide hormone?

1. Glucagon

2. Testosterone

3. Thyroxin

4. Adernaline

Subtopic:  Vitamins, Hormones & Enzymes |
 60%
From NCERT
AIPMT - 2006
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During the process of digestion, the proteins present in food materials are
hydrolysed to amino acids as shown below.

Proteins  \(\xrightarrow[]{\textbf{Enzyme(A)}}\mathrm{}\) Polypeptides  \(\xrightarrow[]{\textbf{Enzyme(B)}}\mathrm{}\)  Amino acids
 
Enzymes (A) and (B)  are respectively:
 

1. Amylase and maltase 2. Diastase and lipase
3. Pepsin and trypsin 4. Invertase and zymase
Subtopic:  Vitamins, Hormones & Enzymes |
 82%
From NCERT
AIPMT - 2006
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RNA and DNA are chiral molecules due to:

1. L- sugar component

2. Chiral bases

3. Chiral phosphate exter unit

4. D- sugar component

Subtopic:   DNA, RNA & Metal Ions |
 53%
From NCERT
AIPMT - 2007
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Which one of the following vitamins is water-soluble?

1. Vitamin-B 2. Vitamin-E
3. Vitamin-K 4. Vitamin-A
Subtopic:  Vitamins, Hormones & Enzymes |
 88%
From NCERT
AIPMT - 2007
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In DNA, the complementary bases are:

1. Adenine and thymine; guanine and cytosine

2. Adenine and thymine; guanine and uracil

3. Adenine and guanine, thymine and cytosine

4. Uracil and adenine; cytosine and guanine

Subtopic:   DNA, RNA & Metal Ions |
 92%
From NCERT
AIPMT - 2008
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An amine that acts as a hormone is:
1. Thyroxine 2. Oxypurin
3. Insulin 4. Progesterone
Subtopic:  Vitamins, Hormones & Enzymes |
 52%
From NCERT
AIPMT - 2008
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Which of the following hormones contains iodine?

1. Insulin

2. Testosterone

3. Adrenaline

4. Thyroxine

Subtopic:  Vitamins, Hormones & Enzymes |
 90%
From NCERT
AIPMT - 2009
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The segment of DNA, that acts as the instrumental manual for the synthesis of the protein is:

1. Nucleotide 2. Ribose
3. Gene 4. Nucleoside
Subtopic:   DNA, RNA & Metal Ions |
 59%
From NCERT
AIPMT - 2009
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