Which of the following is the simplest amino acid?

1. Alanine 

2. Asparagine

3. Glycine 

4. Tyrosine

Subtopic:  Different Amino Acids |
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The zwitterion is shown by:

1. Only A

2. Only B

3. Both A and C

4. A, B and C

Subtopic:  Different Amino Acids |
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Category of aromatic amino acids include all except

1. Serine

2. Tyrosine

3. Phenylalanine

4. Tryptophan

Subtopic:  Different Amino Acids |
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Following is the diagrammatic representation of three different amino acids labelled as 1, 2 and 3?

               

Select the option which is correct identification of amino acids 1, 2 and 3.

         1                                     2                                     3

     Glycine                             Valine                          Threonine

     Glycine                           Isoleucine                      Aspartic acid

     Glycine                           Alanine                              Serine   

     Glycine                            Serine                              Alanine 

         

Subtopic:  Different Amino Acids |
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The body meets the demand of essential amino acids through

(1) Food

(2) Body synthesised  on its own

(3) Both A and B

(4) None of these

Subtopic:  Different Amino Acids |
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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 |
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Identify the amino acid with hydroxymethyl as its R group:

1. Glycine

2. Alanine

3. Serine

4. Phenylalanine

Subtopic:  Different Amino Acids |
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Match each item in Column I with one item in Column II and chose your answer from the codes given below:

    Column I          Column II

(Amino Acid)          (Nature)
I. Tryptophan    1. Sulfur-containing
II. Cysteine       2. 
Aromatic
III. Valine          3. Basic
IV. Lysine         4. Neutral

Codes:

  I II III IV

1. 1 2 3 4

2. 2 1 4 3

3. 2 1 3 4

4. 1 2 4 3

Subtopic:  Different Amino Acids |
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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 |
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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 |
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