NUTR 100- quiz 4 Questions With Complete Solutions

Why is very little sodium (200 mg) required in the diet for a sedentary individual? correct answer: because the kidneys actively reabsorb sodium. True or false: Electrolytes move freely across the cell membrane, whereas water requires a special channel or protein. correct answer: False Which of the following is NOT a way the body regulates fluid balance? correct answer: By decreasing urine output from the kidneys What is the name of the primary mechanism used by cells to maintain water balance between themselves and their surrounding environment? correct answer: the sodium-potassium pump When sodium concentrations are low in blood plasma (hyponatremia), what would be true of water movement? correct answer: Water would move into the cell from the plasma, making cells swell. A major electrolyte mineral that is important for fluid balance, nerve impulse transmission, and muscle contraction; found in a wide variety of fresh plant and animal foods, but most Americans do not consume enough of it. correct answer: Potassium Which one of the following foods has the lowest sodium content? correct answer: baked potato (unseasoned) Which of the following is a true statement? correct answer: Water moves freely across the cell membrane.