Q. No.Biologists describe the protein structure at four levels. Which level described the sequence of amino acids, i.e., the positional information in a protein?
1. Primary structure
2. Secondary structure
3. Tertiary structure
4. Quaternary structure
Mark the Incorrect statement
| 1. | Co-enzymes are also organic compounds but their association with apoenzyme is only transient |
| 2. | Vmax (maximum velocity) represent that there are no substrate molecules to bind with free enzyme molecule |
| 3. | Living state is non-equilibrium steady state to be able to perform work |
| 4. | Enzymes eventually bring down the energy barrier making the transition of substrate to product more easy |
Lecithin is formed by
| 1. | Fatty acid (2) + Phosphoric acid (1) + Ethanolamine |
| 2. | Fatty acid (2) + Phosphoric acid (1) + Serine |
| 3. | Fatty acid (3) + Glycerol |
| 4. | Glycerol (1) + Fatty acid (2) + Phosphoric acid (1) + Choline |
Which of the following monosaccharide is pentose sugar?
| 1. | Mannose | 2. | Ribose |
| 3. | Galactose | 4. | Glucose |
Which of the following is not a nucleoside?
1. Uridine
2. Cytidylic acid CMP
3. Thymidine
4. Guanosine
The structure given below is of
| 1. | A purine base | 2. | Adenosine |
| 3. | Adenylic acid | 4. | A pyrimidine base |
Compounds which consists of only one type of monosaccharide monomer are called homopolysaccharides. Which one of the following does not belong this category?
| 1. | Starch | 2. | Pectin |
| 3. | Cellulose | 4. | Glycogen |
Exoskeleton of anthropods possesses chitin which is
| 1. | A complex polysaccharide |
| 2. | A polymer of N-acetylglucosamine |
| 3. | Known for forming complex helices in its secondary structure |
| 4. | Both (1) & (2) |
Most enzymes consist of two parts i.e.
| 1. | Holoenzyme and prosthetic group | 2. | Enzyme and coenzyme |
| 3. | Apoenzyme and enzyme | 4. | Apoenzyme and cofactor |
Which one is the most abundant protein in the animal world?
1. Collagen
2. RUBISCO
3.Trypsin
4. Insulin
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