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
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
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Identify the given nitrogenous base:
1. Adenine | 2. Guanine |
3. Thymine | 4. Cytosine |
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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 |
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Most abundant protein in the whole of the biosphere is:
1. | Collagen | 2. | Cellulose |
3. | RuBisCO | 4. | Keratin |
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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
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Adenine and guanine are:
1. Substituted purines
2. Substituted pyrimidines
3. Deoxyribonucleosides
4. Ribonucleotides
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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 |
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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
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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 |
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