Which of the following is the simplest amino acid?

1. Alanine 

2. Asparagine

3. Glycine 

4. Tyrosine

Subtopic:  Different Amino Acids |
 88%
Level 1: 80%+
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The essential chemical components of many coenzymes are:
1. Nucleic acid
2. Carbohydrates
3. Vitamins
4. Proteins

Subtopic:  Enzyme Cofactors |
 72%
Level 2: 60%+
AIPMT - 2013
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Which one of the following structural formulae of two organic compounds are correctly identified along with its related function? 


 

1. A- Triglyceride – a major source of energy
2. B- Uracil – a component of DNA
3. A- Lecithin – a component of cell membrane
4. B- Adenine – a nucleotide that makes up nucleic acids

Subtopic:  Lipids |
 77%
Level 2: 60%+
AIPMT - 2011
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The curve given below shows enzymatic activity with relation to three conditions (pH, temperature and substrate concentration) what do the two axis (X and Y) represent? 

        
   

X-axis

Y-axis

(a)

Temperature

Enzyme activity

(b)

Substrate concentration

Enzyme activity

(c)

Enzyme activity

Temperature

(d)

Enzyme activity

pH

1.  (a)
2.  (b)
3.  (c)
4.  (d)

Subtopic:  Properties of Enzymes |
 72%
Level 2: 60%+
AIPMT - 2011
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How many groups of the methane can be substituted to form an amino acid Glycine.

1.4

2.3

3.2

4.1

Subtopic:  Different Amino Acids |
Level 3: 35%-60%
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How many types of proteinaceous amino acids are there?

1.20

2.more than 20

3.less than 20

4.Both 1 and 3

Subtopic:  Different Amino Acids |
 82%
Level 1: 80%+
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Which group of the amino acid contributes essentially to the chemical and physical properties of amino acids?

1.Amino group

2.Carboxyl group

3.Alkyl group (R group)

4.All of these

Subtopic:  Different Amino Acids |
 68%
Level 2: 60%+
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Which of the following is true about Lipids

1.It is a polymer of Fatty acids and Glycerol

2.Water soluble

3.Fatty acids can be saturated or unsaturated

4.both 1 and 3

Subtopic:  Lipids: Fatty Acids |
Level 4: Below 35%
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Which of the following is true about Cholesterol?

1. It contains four fused hydrocarbon rings

2. Organic molecule

3. Hydroxyl group is present

4. All of these

Subtopic:  Lipids: Glycerolipids, Phospholipids & Glycerol |
 94%
Level 1: 80%+
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Which of the following is incorrect.

1. Nucleotides- Nucleosides = phosphate

2. Nucleosides + Phosphate = Nucleotides

3. Nucleosides – Nucleotides = Phosphate

4. Both 1 and 2

Subtopic:  Double Helix : Watson & Crick Part 1 | Double Helix : Watson & Crick |
 66%
Level 2: 60%+
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