Q. No.Examples of globular proteins are:
(a)
Insulin
(b)
Keratin
(c)
Albumin
(d)
Myosin
Choose the correct option :
1. (a) and (b)
2. (b) and (c)
3. (c) and (d)
4. (a) and (c)
Choose the correct option :
1. (a) and (b)
2. (b) and (c)
3. (c) and (d)
4. (a) and (c)
| Assertion (A): | β -Glycosidic linkage is present in maltose. |
| Reason (R): | Maltose is composed of two glucose units in which C1 of one glucose unit is linked to C4 of another glucose unit. |
| 1. | (A) and (R) both are correct statements and (R) explain the (A). |
| 2. | (A) and (R) both are correct statements but (R) does not explain (A). |
| 3. | (A) is the correct statement and (R) is the wrong statement. |
| 4. | (A) is the wrong statement and (R) is the correct statement. |
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.
Consider the following compounds:
Ribose, 2-deoxyribose, maltose, galactose, fructose and lactose
The number of disaccharide carbohydrates is/are:
| 1. | 3 | 2. | 1 |
| 3. | 4 | 4. | 2 |
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 open structure of glucose cannot be established by:
1. HCN
2. Schiff’s test
3. Hydroxylamine test
4. Reaction with HI
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) |
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