Scientists at a major university have isolated a chemical from grapes.Which of the following features is an indication that this chemical could be a vitamin?
A)When large amounts of the chemical are consumed,no health problems occur.
B)When a person's diet lacks the chemical,his or her body experiences abnormal functioning.
C)The chemical is in grapes,cherries,and tomatoes.
D)The chemical has a very limited range of safe intake.

Question

Quizplus · Accepted Answer

Vitamins are organic compounds that are essential for normal physiological functions of the body. When a person's diet lacks a vitamin, their body experiences abnormal functioning. This is a characteristic feature of vitamins and is true for all vitamins, including the one isolated from grapes. Choice A is not a clear indicator of a vitamin as some chemicals may be safe in high doses but still not be vitamins. Choice C is not relevant to determining if a chemical is a vitamin as many compounds can be found in different foods. Choice D suggests that there is a narrow therapeutic window for safe intake, which may or may not be indicative of a vitamin, as some vitamins have wide therapeutic windows while others have narrower.

Scientists at a Major University Have Isolated a Chemical from Grapes.Which