Which of the following components is found in least amounts in an average cell?
1. | Carbohydrates | 2. | Fats |
3. | Nucleic acids | 4. | Proteins |
Most abundant protein in the whole of the biosphere is:
1. | Collagen | 2. | Cellulose |
3. | RuBisCO | 4. | Keratin |
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
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
At each step of ascent, the helical strand of DNA turns
1. | 36 degree | 2. | 34 degree |
3. | 20 degree | 4. | 180 degree |
The pitch of DNA helix is:
1. 0.34 nm | 2. 3.4 nm |
3. 34 nm | 4. 340 nm |