Question
Biology Question on Digestion and absorption
Which of the following acid is also a vitamin?
A
Ascorbic acid
B
Formic acid
C
Malic acid
D
Palmitic acid
Answer
Ascorbic acid
Explanation
Solution
Ascorbic acid or vitamin C is a colourless, crystalline, water-soluble, heat labile vitamin with antioxidant properties, found especially in citrus fruits and green vegetables. It functions as a scavenger of free radicals within cells and in extracellular fluid and blood plasma. Most organisms synthesize it from glucose but humans and other primates obtain it form diet. The recommended daily intake is 30mg for an adult. Deficiency of vitamin C leads to scurvy.