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Vignette #1 John has started working out at the local gym and has been buying protein-packed snack bars and other high-protein foods. He started at 180 pounds and has increased his weight to 195 pounds. He is convinced the extra weight is all muscle. His wife, Jill, thinks that the there may be risks involved with eating extra protein. They decide to find out more about how much protein they need and explore the risks associated with consuming too much as well as too little protein. Thinking about what you have read in your nutrition text, answer the following questions. Jill and John are out to dinner and deciding what to order. Which of the following choices most closely follows the guidelines for selecting protein sources from your text?
Osmoconformer
An animal in which the salt concentration of body fluids varies along with changes in the surrounding sea water so that it stays in osmotic equilibrium with its surroundings.
Osmoregulator
An organism that regulates its internal osmotic pressure, maintaining fluid and electrolyte balance despite external conditions.
Antidiuretic Hormone
A hormone released by the pituitary gland that regulates water retention in the body by increasing the concentration of solutes in the blood.
Collecting Ducts
Tubules in the kidneys that receive urine from the nephrons and transport it into the renal pelvis and ureter.
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