Biological Psychology Ch 9 Quiz

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An advantage of maintaining a constant body temperature is that it

enables an animal to stay equally active at all environmental temperatures.

Fructose, used in corn syrup as a sweetener, may lead to increased obesity by

failing to trigger satiety

On average, people with bulimia show a variety of biochemical abnormalities, including increased production of

ghrelin

Sodium-specific hunger is closely associated with ____.

hypovolemic thirst

Taste and other mouth sensations contribute to ____.

satiety

(T or F) The physiological changes that defend body temperature depend on areas in and near the hypothalamus.

True

A common misconception is that eating turkey increases the body's supply of ____, which enables the brain to make chemicals that make you sleepy.

tryptophran

(T or F) Orexin inhibits appetite.

False

(T or F) Homeostasis refers to temperature regulation and other biological processes that keep body variables within a fixed range.

True

A set point refers to

a very narrow range that the body works to maintain at a stable level

Vasopressin raises blood pressure by

constricting the blood vessels

Lenora loves eating carbohydrates. When she does, they are initially broken down in her

mouth

(T or F) Allyn suffers from anorexia. After she eats, she purges her food by forcing herself to vomit.

False

(T or F) Paige wants to lose weight. The most effective long-term plan is for her to limit her intake of sweet foods.

False

(T or F) Obese people tend to produce more insulin than people of normal weight.

True

Pamala has a fever of 107f. Her doctor is concerned because

at this temperature, she is starting to damage her own body cells

What does the eating cycle of bulimia have in common with addictive drugs?

both activate the brain's reinforcement areas

What kind of thirst is produced by an increased concentration of solutes in the blood?

osmotic

What is the main site for absorption of digested food into the bloodstream?

small intestine

Which hormone, released by the posterior pituitary, both raises blood pressure and enables the kidneys to reabsorb water?

vasopressin


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