BIO024 LAS 5 Vitamins Quiz

What is the primary function of Vitamin C in the body?

• Blood clotting

• Antioxidant and immune support

• Bone strengthening

• Vision improvement

Vitamin C is also known as:

• Tocopherol

• Retinol

• Ascorbic acid

• Riboflavin

Which vitamin is water-soluble?

• Vitamin A

• Vitamin D

• Vitamin K

• Vitamin C

Which test is used to measure Vitamin C content in food?

• Biuret test

• Benedict’s test

• Starch-iodine test

• Sudan III test

What color change indicates the presence of Vitamin C in the starch-iodine test?

• Blue-black

• Yellow

• Colorless

• Red

What is the molecular weight of Vitamin C?

• 176.12 g/mol

• 100.18 g/mol

• 58.44 g/mol

• 342.30 g/mol

What is the importance of adding HCl in the Vitamin C titration?

• It neutralizes the solution

• It stabilizes the iodine solution

• It prevents oxidation

• It acidifies the solution

Which of the following is a fat-soluble vitamin?

• Vitamin B1

• Vitamin C

• Vitamin E

• Vitamin B6

What happens to Vitamin C when exposed to heat?

• It becomes more effective

• It gets destroyed

• It turns into Vitamin A

• It turns blue

What type of reaction occurs when Vitamin C reacts with iodine?

• Oxidation-reduction

• Precipitation

• Hydrolysis

• Dehydration