Proteins are found to have two different types of secondary structures via -helix and -pleated sheet structure. The -helix structure of a protein is stabilized by-
1. Peptide bonds
2. Van der waals forces
3. Hydrogen bonds
4. Dipole-dipole interactions
In disaccharides, if the reducing groups of monosaccharides, i.e., aldehydic or ketonic groups are bonded, these are non-reducing sugars. Which of the following disaccharide is a non-reducing sugar?
1. | |
2. | |
3. | |
4. |
Among the options provided, which acid is classified as a vitamin?
1. | Aspartic and | 2. | Ascorbic acid |
3. | Adipic acid | 4. | Saccharic acid |
Carbon atoms of pentose sugars of nucleotides having phosphodiester linkage are:
1. 5' and 3'
2. 2' and 5'
3. 5' and 5'
4. '3 and 3'
Nucleic acids are the polymers of :
1. Nucleosides
2. Nucleotides
3. Bases
4. Sugars
The incorrect statement among the following regarding glucose is:
1. | It is an aldohexose. |
2. | n-Hexane is formed when glucose is heating with HI. |
3. | It is present in furanose form. |
4. | It does not give 2, 4- DNP test. |
Each polypeptide in a protein has amino acids linked with each other in a specific sequence. This sequence of amino acids is said to be:
1. Primary structure of proteins
2. Secondary structure of proteins
3. Tertiary structure of proteins
4. Quaternary structure of proteins
RNA does not contain:
1. Adenine
2. Uracil
3. Thymine
4. Cytosine
Which of the following B group vitamins can be stored in our body?
1. Vitamin
2. Vitamin
3. Vitamin
4. Vitamin
DNA does not have:
1. Adenine
2. Thymine
3. Cytosine
4. Uracil