An electrical charge or membrane potential exists across nerve cell membranes because:
a. the membrane is permeable to sodium ions
b. the cell membrane allows more positively charged ions to leak out than to leak in
c. the membrane is impermeable to all ions
d. water can slow freely across the membrane
Answer: b. the cell membrane allows more positively charged ions to leak out than to leak in
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Premilk, which is rich in immune factors and protein, is also called
A. prolactin. B. colostrum. C. lactation. D. oxytocin.
The Acceptable Macronutrient Distribution Range for fat recommends that the percentage of total kcalories from fat should fall between:
a. 10% and 20%.
b. 20% and 25%
c. 20% and 35%.
d. 30% and 45%.
Which one of the following food items would have the highest nutrient density for calcium?
a. Skim milk b. 1% milk c. 2% milk d. Whole milk
Which of the following dietary practices reduces inflammation and oxidative stress?
A) Eating a variety of meats daily B) Eating whole-fat dairy products daily C) Eating a variety of fruits and vegetables daily D) Eating plenty of low-sodium snack foods with trans fats