Q. No.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
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 |
Which of the following components is found in least amounts in an average cell?
| 1. | Carbohydrates | 2. | Fats |
| 3. | Nucleic acids | 4. | Proteins |
Inulin is a:
1. Disaccharide containing two galactose
2. Disaccharide containing fructose and galactose
3. Polymer of fructose
4. Polysaccharide used in microbial culture
Adenine and guanine are:
1. Substituted purines
2. Substituted pyrimidines
3. Deoxyribonucleosides
4. Ribonucleotides
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 |
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
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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