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
Given below are two statements:
Assertion (A): | β -Glycosidic linkage is present in maltose. |
Reason (R): | Maltose is composed of two glucose units in which C- 1 of one glucose unit is linked to C- 4 of another glucose unit. |
1. | Assertion and reason both are correct statements and reason explain the assertion. |
2. | Assertion and reason both are correct statements but reason does not explain assertion. |
3. | Assertion is the correct statement and reason is the wrong statement. |
4. | Assertion is the wrong statement and reason 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) |
The essential amino acid is/are-
1. Valine
2. Alanine
3. Serine
4. All of the above