Quiz 9

Question 1

do humans spend more energy on which of the following than everything else combined?

Answer 1

maintaining basal metabolism

Question 2

the ___________ organisms generate body heat so they can remain significantly above the temperature of the environment

Answer 2

endothermic

Question 3

the _________ organisms depend on external sources for body heat instead of generating it themselves

Answer 3

ectothermic

Question 4

the _______ can be thought of as the body’s attempt to maintain ____

Answer 4

homeostasis/constancy

Question 5

processes that reduce any discrepancies from the setpoint are known as ____.

Answer 5

negative feedback

Question 6

what evidence exists that the preoptic area controls body temperature?

Answer 6

heating or cooling the preoptic area leads to sweating or shivering

Question 7

a fever represents an increased ________ for body temperature

Answer 7

set point

Question 8

Dinah’s body has produced aldosterone so that she ____

Answer 8

is able to conserve sodium

Question 9

your posterior pituitary is most likely to release antidiuretic hormone (ADH) ___

Answer 9

if you are very thirsty

Question 10

the tendency of water to flow across a semipermeable membrane from the area of low solute concentration to the area of higher concentration is termed ___

Answer 10

osmotic pressure

Question 11

vasopressin raises blood pressure by ___

Answer 11

constricting the blood vessels

Question 12

which statement about the relationship between anorexia nervosa and depression is accurate?

Answer 12

antidepressant medications are ineffective in treating anorexia

Question 13

alternating between deprivation and periods of excessive eating is called _______

Answer 13

bulimia nervosa

Question 14

the genetic ability to metabolize lactose in adulthood is common in societies with long histories of ____

Answer 14

keeping domesticated cattle

Question 15

in general, giving a person who is obese leptin will ___

Answer 15

increase sensitivity to leptin

Question 16

when neuropeptide Y inhibits the paraventricular nucleus, it ___

Answer 16

produces extreme overeating

Question 17

the brain finds out about the degree of stretch of the stomach from ___

Answer 17

activity of the vagus nerve

Question 18

after damage in and around the ventromedial hypothalamus, animals are more likely to ___

Answer 18

overeat and gain weight

Question 19

the release of cholecystokinin stimulates hunger

Answer 19

false

Question 20

in most mammals, the level of lactase declines at about the time of weaning

Answer 20

true