People with cystic fibrosis have significant respiratory difficulties and may have profound digestive complications because a genetic defect results in the inability to pump which ions across cell membranes?

a. Sodium
b. Potassium
c. Phosphate
d. Chloride


Ans: d. Chloride

Nutritional Science

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List at least four diseases known to be linked to obesity. Obesity indirectly accounts for what percentage of deaths in the United States?

What will be an ideal response?

Nutritional Science

Which activity is more effective in preventing the formation of dental caries than restricting intake of sugary foods?

a. regular tooth brushing and flossing b. consuming more raisins between meals c. substituting honey or raw sugar for table sugar d. spreading out the intake of snack foods throughout the day e. drinking beverages when consuming sugary foods

Nutritional Science

Current focus on the stress-and-disease phenomenon is directed toward:

A. Interactions of the immune system B. The central nervous system (CNS) C. Human consciousness D. All of the above

Nutritional Science

The opioid peptide, __________________, promotes eating and has pain-reducing properties. This morphine-like substance acts on the feeding centers of the hypothalamus to stimulate the consumption of highly palatable foods, such as fats. It may also play some role in stress-induced eating

a. Neuropeptide Y b. Peptide YY c. Dynorphin d. Galanin

Nutritional Science