Q. No.A natural source of vitamin A among the following is:
1.
Amla
2.
Yeast
3.
Fish liver oil
4.
Exposure to sunlight
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
Which of the following is an essential amino acid?
1. Valine
2. Alanine
3. Serine
4. All of the above
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 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. |
D-Glucose \(\xrightarrow[]{\textbf{?}}\) Saccharic acid
The oxidizing reagent used for this conversion is:
1. HI
2. Bromine water
3. HNO3
4. H2SO4
The main component present in starch and glycogen is:
1. Amylose
2. Glycose
3. Amylopectin
4. Cellulose
The main function of carbohydrates in plants is to serve as a:
1. Structural component of cell membranes
2. Building block of cell walls
3. Storage molecule (starch)
4. Transport sugar in phloem
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