Products of hydrolysis of lactose are -
1. β-D-galactose and β-D-glucose.
2. -D-galactose and -D-glucose.
3. -D-galactose and β-D-maltose.
4. β-D-galactose and β-D-fructose.
The product of D-glucose with HI is -
1. | Neo-pentane | 2. | n-Hexane |
3. | Cyclohexane | 4. | Glucaric acid |
The fat-soluble vitamin(s) is/are-
1. | Vitamin A | 2. | Vitamin B |
3. | Vitamin E | 4. | Both 1 and 3 |
Carbohydrates are useful for plants-
1. To build cell membrane.
2. To support structure.
3. To serve as a storage molecule.
4. To help in the transport mechanism.
The main component present in starch and glycogen is:
1. | Amylose | 2. | Glycose |
3. | Amylopectin | 4. | Cellulose |
D-Glucose \(\xrightarrow[]{\textbf{?}}\) Saccharic acid
The oxidizing reagent used for this conversion is -
1. | HI | 2. | Bromine water |
3. | HNO3 | 4. | H2SO4 |
The incorrect statement about nucleic acid is:
1. | It is responsible for heredity. |
2. | It is responsible for protein synthesis in a cell. |
3. | It is a constituent of the chromosome. |
4. | It is responsible for the transmission of chemical signals. |
The correct statement about RNA is :
1. | The helical structure of RNA is mostly single-stranded . |
2. | It has deoxyribose sugar. |
3. | It is the chemical basis of heredity. |
4. | It contains thymine (T) |
The essential amino acid is/are-
1. Valine
2. Alanine
3. Serine
4. All of the above
The enzyme used for the above conversion is:
\(C_{12}H_{22}O_{11}\ \xrightarrow[H_2O]{?}\ \text{2 mole of glucose}\)
1. | Amylase | 2. | Lactase |
3. | Maltase | 4. | Peptidase |