Ferrocene is :
1. Fe(-C5H5)2
2. Fe(-C5H5)2
3. Cr(-C5H5)5
4. Os(-C5H5)2
Phospholipids are esters of glycerol with
1. one carboxylic acid residue and two phosphate groups
2. three phosphate groups
3. three carboxylic acid residues
4. two carboxylic acid residues and one phosphate groups
Compound that gives positive Fehling's solution test is :
1. Sucrose
2. Glucose
3. Fat
4. Protein
Which of the following is the sweetest sugar?
1. Sucrose
2. Glucose
3. Fructose
4. Maltose
a-D-(+)-glucose and b-D-(+)-glucose are
1. | Anomers | 2. | Epimers |
3. | Enantiomers | 4. | Geometrical isomers |
The couplings between base units of DNA is through :
1. | Hydrogen bonding | 2. | Electrostatic bonding |
3. | Covalent bonding | 4. | Van der waal's forces |
RNA and DNA are chiral molecules, their chirality is due to
1. L-sugar component
2. chiral bases
3. chiral phosphate ester units
4. D-sugar-component
The correct option about the presence of H-bond in nucleotides is:
1. A-T, G-C
2. A-G, T-C
3. G-T, A-C
4. A-A, T-T
Glycolysis is
1. oxidation of glucose to pyruvate
2. conversion of glucose to haem
3. oxidation of glucose to glutamate
4. conversion of pyruvate to citrate
Which is not a true statement?
1. a-carbon of a-amino acid is asymmetric except glycine
2. All proteins are found in L-form
3. Human body can synthesis all proteins they need
4. At pH = 7 both amino and carboxylic groups exist in ionised form