1. | The positional information of amino acids in a protein is called the primary structure. |
2. | Alpha helix is a secondary structure and beta pleated sheet is a tertiary structure of a protein. |
3. | Tertiary structure is absolutely necessary for the many biological activities of proteins. |
4. | Quaternary structures are seen in proteins made of more than one polypeptide chain. |
Regarding RuBisCO:
I: | It is the most abundant protein in the whole of the biosphere. |
II: | Mg2+ is its activator |
1. | Only I is correct |
2. | Only II is correct |
3. | Both I and II are correct |
4. | Both I and II are incorrect |
Which of the following is the least likely to be involved in stabilizing the three-dimensional folding of most proteins?
1. | Ester bonds | 2. | Hydrogen bonds |
3. | Electrostatic interaction | 4. | Hydrophobic interaction |
Identify the zwitter ion configuration of alanine:
1. | 2. | ||
3. | 4. |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Assertion (A): | Dietary proteins are the source of essential amino acids. |
Reason (R): | All essential amino acids are aromatic. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
1. | RuBisCO | Most abundant protein in the whole of the biosphere |
2. | Insulin | A polymer of fructose |
3. | Vinblastin | A secondary metabolite used as a drug |
4. | Adenine | A substituted purine |
A pure protein should normally have
1. | Two ends | 2. | One end |
3. | Three ends | 4. | No ends |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Identify the substances having a glycosidic bond and peptide bond, respectively in their structure:
1. | Glycerol, trypsin | 2. | Cellulose, lecithin |
3. | Inulin, insulin | 4. | Chitin, cholesterol |