Question 1

​Output from the paraventricular nucleus acts on the ____.

Accepted Answer

A)  preoptic area
B)  ventromedial hypothalamus​
C)  lateral hypothalamus​
D)  baroreceptors​E) A) and C)
F) C) and D)

Question 2

​The large intestine absorbs water and minerals.

Accepted Answer

A) True 
 B)False

Question 3

​The hormone aldosterone results in the ____.

Accepted Answer

A)  conservation of water
B)  excretion of sodium​
C)  conservation of sodium​
D)  decreased preference for salty tastes​E) All of the above
F) None of the above

Question 4

​Electrical stimulation of a rat's lateral hypothalamus would most likely result in ____.

Accepted Answer

A)  an increase in food seeking behaviors
B)  a decrease in food seeking behaviors​
C)  a decrease in chewing and other reflexes associated with eating​
D)  damage to dopamine-containing axons passing through it​E) A) and C)
F) A) and D)

Question 5

​Which event would lead to eating a larger than normal meal?

Accepted Answer

A)  increasing leptin levels
B)  decreasing NPY levels​
C)  increasing NPY levels​
D)  damaging the lateral hypothalamus​E) A) and B)
F) A) and C)

Question 6

Homeostasis refers to temperature regulation and other biological processes that keep body variables within a fixed range.

Accepted Answer

A) True 
 B)False  True

Question 7

​Anorexia is a problem stemming from a lack of appetite.

Accepted Answer

A) True 
 B)False

Question 8

​Homeothermic organisms include ____.

Accepted Answer

A)  amphibians and reptiles
B)  reptiles and fish​
C)  amphibians and fish​
D)  mammals and birds​E) B) and C)
F) C) and D)

Question 9

​Leptin directly activates receptors in the part of the hypothalamus known as the ____.

Accepted Answer

A)  paraventricular nucleus
B)  ventromedial hypothalamus​
C)  arcuate nucleus​
D)  lateral preoptic area​E) All of the above
F) B) and D) C

Question 10

​The ____ increases the pituitary gland's secretion of hormones that increase insulin secretion.

Accepted Answer

A)  occipital cortex
B)  lateral hypothalamus​
C)  medial part of the hypothalamus​
D)  pineal gland​E) None of the above
F) A) and C)

Question 11

​A drug that stimulates melanocortin receptors would most likely ____.

Accepted Answer

A)  increase meal frequency
B)  increase leptin production​
C)  decrease meal size​
D)  increase meal size​E) A) and D)
F) C) and D)

Question 12

​More Native American Pimas are overweight now than in the early 1900s because of a change in which aspect of their lives?

Accepted Answer

A)  diet
B)  stress​
C)  exercise​
D)  education​E) C) and D)
F) B) and D)

Question 13

​Which area of the hypothalamus seems to be critical for the ending of meals?

Accepted Answer

A)  lateral hypothalamus
B)  ventromedial hypothalamus​
C)  preoptic area​
D)  paraventricular nucleus​E) B) and D)
F) C) and D)

Question 14

​After a lesion to the lateral preoptic area,a rat would react to an increase in sodium levels by ____.

Accepted Answer

A)  drinking less and excreting highly concentrated urine
B)  drinking more and excreting a great deal of dilute urine​
C)  increasing its activity level without changing the amount it drinks​
D)  sweating profusely, but not drinking much​E) A) and B)
F) A) and C)

Question 15

​The lateral preoptic area and surrounding parts of the hypothalamus control ____.

Accepted Answer

A)  CCK levels
B)  hunger​
C)  drinking​
D)  vasopressin levels​E) A) and B)
F) A) and C) C

Question 16

​Hypovolemic thirst ____.

Accepted Answer

A)  depends mostly on the lateral preoptic area
B)  can be satisfied better by salt water than by pure water​
C)  is stimulated by an increased concentration of solutes in the blood​
D)  can only be satisfied by drinking a great deal of pure water​E) A) and C)
F) B) and C)

Question 17

​Leptin is produced by ____.

Accepted Answer

A)  the paraventricular nucleus
B)  body fat​
C)  neuropeptide Y​
D)  orexin A​E) A) and B)
F) None of the above

Question 18

​An animal is most likely to eat more frequently and gain weight after damage to the ____.

Accepted Answer

A)  preoptic area
B)  areas surrounding the third ventricle​
C)  ventromedial hypothalamus​
D)  lateral hypothalamus​E) A) and C)
F) A) and B)

Question 19

​The ability to digest lactose varies in a patchy way from place to place on which continent?

Accepted Answer

A)  Asia
B)  Europe​
C)  Africa​
D)  Antarctica​E) A) and B)
F) C) and D)

Question 20

​Beyond about 40° or 41°C,____ begin to break their bonds and lose their useful properties.

Accepted Answer

A)  RNA
B)  DNA​
C)  cells​
D)  proteins​E) B) and C)
F) All of the above

Exam 9: Internal Regulation

​Output from the paraventricular nucleus acts on the ____.

Correct AnswerverifiedShow Answer

​The large intestine absorbs water and minerals.

Correct AnswerverifiedShow Answer

​The hormone aldosterone results in the ____.

Correct AnswerverifiedShow Answer

​Electrical stimulation of a rat's lateral hypothalamus would most likely result in ____.

Correct AnswerverifiedShow Answer

​Which event would lead to eating a larger than normal meal?

Correct AnswerverifiedShow Answer

Homeostasis refers to temperature regulation and other biological processes that keep body variables within a fixed range.

Correct AnswerverifiedTrue

​Anorexia is a problem stemming from a lack of appetite.

Correct AnswerverifiedShow Answer

​Homeothermic organisms include ____.

Correct AnswerverifiedShow Answer

​Leptin directly activates receptors in the part of the hypothalamus known as the ____.

Correct AnswerverifiedC

​The ____ increases the pituitary gland's secretion of hormones that increase insulin secretion.

Correct AnswerverifiedShow Answer

​A drug that stimulates melanocortin receptors would most likely ____.

Correct AnswerverifiedShow Answer

​More Native American Pimas are overweight now than in the early 1900s because of a change in which aspect of their lives?

Correct AnswerverifiedShow Answer

​Which area of the hypothalamus seems to be critical for the ending of meals?

Correct AnswerverifiedShow Answer

​After a lesion to the lateral preoptic area,a rat would react to an increase in sodium levels by ____.

Correct AnswerverifiedShow Answer

​The lateral preoptic area and surrounding parts of the hypothalamus control ____.

Correct AnswerverifiedC

​Hypovolemic thirst ____.

Correct AnswerverifiedShow Answer

​Leptin is produced by ____.

Correct AnswerverifiedShow Answer

​An animal is most likely to eat more frequently and gain weight after damage to the ____.

Correct AnswerverifiedShow Answer

​The ability to digest lactose varies in a patchy way from place to place on which continent?

Correct AnswerverifiedShow Answer

​Beyond about 40° or 41°C,____ begin to break their bonds and lose their useful properties.

Correct AnswerverifiedShow Answer

Output from the paraventricular nucleus acts on the ____.

Correct Answer
verified

The large intestine absorbs water and minerals.

Correct Answer
verified

The hormone aldosterone results in the ____.

Correct Answer
verified

Electrical stimulation of a rat's lateral hypothalamus would most likely result in ____.

Correct Answer
verified

Which event would lead to eating a larger than normal meal?

Correct Answer
verified

Correct Answer
verified
True

Anorexia is a problem stemming from a lack of appetite.

Correct Answer
verified

Homeothermic organisms include ____.

Correct Answer
verified

Leptin directly activates receptors in the part of the hypothalamus known as the ____.

Correct Answer
verified
C

The ____ increases the pituitary gland's secretion of hormones that increase insulin secretion.

Correct Answer
verified

A drug that stimulates melanocortin receptors would most likely ____.

Correct Answer
verified

More Native American Pimas are overweight now than in the early 1900s because of a change in which aspect of their lives?

Correct Answer
verified

Which area of the hypothalamus seems to be critical for the ending of meals?

Correct Answer
verified

After a lesion to the lateral preoptic area,a rat would react to an increase in sodium levels by ____.

Correct Answer
verified

The lateral preoptic area and surrounding parts of the hypothalamus control ____.

Correct Answer
verified
C

Hypovolemic thirst ____.

Correct Answer
verified

Leptin is produced by ____.

Correct Answer
verified

An animal is most likely to eat more frequently and gain weight after damage to the ____.

Correct Answer
verified

The ability to digest lactose varies in a patchy way from place to place on which continent?

Correct Answer
verified

Beyond about 40° or 41°C,____ begin to break their bonds and lose their useful properties.

Correct Answer
verified