Among the regulatory peptide molecules, some are recognized as true hormones. Which substance is a paracrine rather than a hormone??
A) ?somatostatin
B) ?secretin
C) ?cholecystokinin
D) ?gastrin
A
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Which of the following is thought to promote the development of brain senile plaques and neurofibrillary tangles?
a. Oxidative stress b. Excess acetylcholine c. Dietary deficiency of choline d. Low blood levels of homocysteine
Vitamin C-rich fruits and vegetables act as antioxidants and helps ________ free radicals
A) promote B) maintain C) convert trans fats to D) neutralize
Which of the following is a risk factor that increases one's chances of developing osteoporosis?
A. participation in weight-bearing exercise B. consumption of a plant-based diet C. smoking D. moderate alcohol intake
Brian's need for a vitamin is 100 milligrams each day. The bioavailability of this vitamin is 35%. This means that Brian needs to consume _____ milligrams each day for this vitamin to meet his needs.
A. 65 B. 100 C. 135 D. 170