The R group in a proteinaceous amino acid is hydroxymethyl. This amino acid:
1. is not an essential amino acid
2. is not genetically coded for
3. is involved in disulfide linkage
4. is acidic in nature

Subtopic:  Amino Acids |
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The given compound:
 

1. is a storage product in archaea
2. is the source of energy in fungi
3. is present in the cell walls of gram negative bacteria
4. is a structural component of plasma membrane

Subtopic:  Lipids |
 85%
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Identify the given nitrogenous base:
 

1. Adenine 2. Guanine
3. Thymine 4. Cytosine
Subtopic:  Nucleic Acid |
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Which of the following components is found in least amounts in an average cell?

1. Carbohydrates 2. Fats
3. Nucleic acids 4. Proteins
Subtopic:  Introduction |
 69%
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Most abundant protein in the whole of the biosphere is:

1.Collagen2.Cellulose
3.RuBisCO4.Keratin

Subtopic:  Proteins |
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Inulin is a:
1. Disaccharide containing two galactose
2. Disaccharide containing fructose and galactose
3. Polymer of fructose
4. Polysaccharide used in microbial culture

Subtopic:  Carbohydrates |
 88%
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Adenine and guanine are:
1. Substituted purines
2. Substituted pyrimidines
3. Deoxyribonucleosides
4. Ribonucleotides

Subtopic:  Nucleic Acid |
 89%
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The first amino acid in the primary structure of a protein is termed as:

1. C – terminus amino acid 2. N – terminus amino acid
3. An imino acid 4. Alpha amino acid
Subtopic:  Proteins |
 72%
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Quaternary structure is seen in proteins that:
1. act as biochemical catalysts
2. are embedded within the plasma membrane
3. are assembly of more than one subunits
4. do not have any structural role in the cell

Subtopic:  Proteins |
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The double helix model of DNA by Watson and Crick exhibits its:

1. Primary structure 2. Secondary structure
3. Tertiary structure 4. Quaternary structure
Subtopic:  Double Helix : Watson & Crick |
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