At which sites is the inactive form of vitamin D converted to the active form?
A) in the stomach and then in the small intestine B) in the liver and then in the kidneys
C) in the liver and then in the gallbladder D) in the blood and then in the skin
Q. 2Observational research is defined as
A) an idea generated by scientists based on their observations.
B) a process that involves looking at factors in two or more groups of subjects to see if there is a relationship to certain outcomes.
C) a stepwise process used by scientists to evaluate different observational techniques.
D) a process involving one group of subjects that receives a specific treatment and a second group of subjects that does not receive the treatment.
Q. 3According to a study conducted by the National Eye Institute, which of the following lists of supplements may lower the risk of age-related macular degeneration?
A) vitamin D, vitamin K, and niacin B) choline, carnitine, and inositol
C) pantothenic acid, biotin, and thiamin D) vitamin C, vitamin E, and beta-carotene
Q. 4A hypothesis is
A) a stepwise process used by scientists to generate sound research findings.
B) research involving one group of subjects that receives a specific treatment and a second group of subjects that does not receive the treatment.
C) an idea generated by scientists based on their observations.
D) research that involves looking at factors in two or more groups of subjects to see if there is a relationship to certain outcomes.
Q. 5A double-blind placebo-controlled study is
A) an idea generated by scientists based on their observations.
B) research in which neither the subjects nor the scientists know which group received the treatment and which group received a placebo.
C) a stepwise process used by scientists to identify effective placebos.
D) research that involves looking at factors in two or more groups of subjects to see if there is a relationship to certain outcomes.
Q. 6Which of the following people might not benefit from a vitamin supplement?
A) individuals who don't drink milk or go out in the sun
B) strict vegetarians
C) women of childbearing age
D) individuals who regularly eat fortified foods
Q. 7Experimental research is
A) a process involving one group of subjects that receives a specific treatment and a second group of subjects that does not receive the treatment.
B) an idea generated by scientists based on their observations.
C) a stepwise process used by scientists to evaluate different types of experiments.
D) a process that involves looking at factors in two or more groups of subjects to see if there is a relationship to certain outcomes.
Q. 8Pernicious anemia occurs when there is a deficiency of which vitamin?
A) B2 B) B5 C) B12 D) B6
Q. 9Lentils are a staple in the diet of which of the following ethnic groups?
A) Mexican B) Alaskan C) Native American D) Indian
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