CBSE 2025 · Region 5 · Set 3 · Q28 · 3 marks
(a)Name the vitamin which is responsible for coagulation of blood. $\displaystyle 1$(b)What is meant by denaturation of protein ? Give an example.
(a)
Name the vitamin which is responsible for coagulation of blood. $\displaystyle 1$
(b)
What is meant by denaturation of protein ? Give an example.
Marking-scheme solution
(a)
Vitamin K
(b)
The loss in biological activity of native protein when it is subjected to physical or
chemical change/Disruption in secondary and tertiary structures of protein when
subjected to physical or chemical change.
Example: coagulation of egg on boiling.
BiomoleculesVitaminsRemembershort_answereasy
More from Biomolecules
- The specific sequence in which amino acids are arranged in a protein is called its2024 · asked 4×
- Assertion: Glucose gets oxidized to six carbon gluconic acid on reaction with bromine water. Reason (R): The…2026 · asked 3×
- Living systems are made up of various complex biomolecules like carbohydrates, proteins, nucleic acids,…2023 · asked 3×
- Carbohydrates are optically active polyhydroxy aldehydes and ketones. They are also called saccharides. All…2023 · asked 3×
- Identify the polysaccharide among the following:2026 · asked 3×
- Which of the following structures represents α -D-glucose?2023 · asked 3×
- Certain organic compounds are required in small amounts in our diet but their deficiency causes specific…2024 · asked 3×
- Give reasons for any 3 of the following observations: Penta-acetate of glucose does not react with…2023 · asked 3×
CBSE Class 12 Chemistry past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.