What is a free radical??
A) ?an antioxidant substance that prevents accumulation of cell-damaging oxides
B) ?a substance in food that interacts with nutrients to decrease their utilization
C) ?a nutrient in excess of body needs that the body is free to degrade with no consequence
D) ?a molecule that is unstable and highly reactive because it contains unpaired electrons
D
You might also like to view...
Delirium tremens, known as the "DTs," are a result of:
a. thiamin deficiency. b. niacin deficiency. c. thiamin toxicity. d. niacin toxicity.
The purpose of the Acceptable Macronutrient Distribution Ranges (AMDRs) is
A. to assure appropriate energy intake for a given physical activity level. B. to assess the adequacy of vitamins and minerals in the diet. C. to determine if the distribution of carbohydrates, proteins, and fats in the diet is healthy. D. to determine if the energy provided by each meal is adequate.
What is the chief reason that health-care professionals advise people to engage only in low-to-moderate intensity activities for prolonged duration rather than more intense, shorter routines?
a. Cost is lower b. Boredom is reduced c. Compliance is better d. Monitoring time is diminished
The insoluble fiber that provides the main structural component of plant cell walls is
A) cellulose. B) mucilage. C) pectin. D) lignin.