SAMPLE QUESTION (CH. 9, 11-14)
WITH SOLVED ANSWERS 2026/2027
What defines a homeostatic process? - ANSWERthe maintenance of certain body
variables within a fixed range
What is the benefit of maintaining a body
temperature of 37 degrees Celsius? - ANSWERwarmer muscles
After damage to the preoptic area, an animal ____. - ANSWERfails to shiver and
sweat sufficiently
The two types of thirst are ____ and ____. - ANSWERosmotic thirst; hypovolemic
thirst
____ occurs when solutes are more concentrated on
one side of the membrane than on the other. - ANSWEROsmotic pressure
After a loss of blood volume, an animal will: - ANSWERalternately drink pure water
and excessively concentrated saltwater
Consuming too much salt will trigger ____ thirst.
Bleeding or heavy sweating will trigger ____ thirst. - ANSWERosmotic, hypovolemic
Hypovolemia induces thirst by inducing production
of which hormone? - ANSWERAngiotensin II
Fat cells produce - ANSWERleptin
Leptin directly activates receptors in the part of the
hypothalamus known as the: - ANSWERarcuate nucleus
Electrical stimulation of a rat's lateral hypothalamus would most likely result in: -
ANSWERan increase in food seeking behaviors
A cycle of food-deprivation following by
overeating characterizes: - ANSWERbulimia
According to the ____ theory, we experience emotion after we experience autonomic
arousal. - ANSWERJames-Lange
Children with a rare condition called ____ are
unable to move their facial muscles to make a
smile. - ANSWERMöbius syndrome
, Activity in the left hemisphere is associated with: - ANSWERbehavioral activation
It is possible to predict (with moderate accuracy)
people's political attitudes toward the use of the
military, the death penalty, and so forth by
monitoring which of the following? - ANSWERamygdala responses to a sudden loud
noise
Output from the amygdala to the ____ modifies
approach and avoidance responses. - ANSWERprefrontal cortex
Studies of aggressive and criminal behaviors in adulthood have found that: -
ANSWERmonozygotic twins resemble each other more
closely than dizygotic twins
Recurring nightmares, exaggerated startle response,
and avoidance behavior are common symptoms of: - ANSWERposttraumatic stress
disorder
Operant conditioning is to ____ as classical
conditioning is to ____. - ANSWERconsequences; association
Which of the following is one of the reasons that Lashley failed at finding the
engram? - ANSWERSome memories do not depend on the cortex
____ is an influence of recent experience on
behavior, even if one does not recognize that
influence. - ANSWERImplicit memory
____ decrease(s) the responses in a rat's brain to
the smell of a cat. - ANSWERBenzodiazepines
Which type of leukocyte matures in the bone
marrow? - ANSWERB cell
Blood cells that attach to types of tumor cells and
cells infected with viruses are known as: - ANSWERnatural killer cells
One of the main differences between natural killer cells and T cells is that natural
killer cells: - ANSWERattack several kinds of intruders
Information from cytokines is relayed to the brain,
specifically to the: - ANSWERhypothalamus
A rat must swim through murky water to find a rest platform that is just under the
surface in the: - ANSWERMorris search task
A number of species of birds differ in the size of
their hippocampus. The species with the largest