Question 1

Libby's physician refers her to a medical centre to have the biochemical activity in her brain analyzed.She is given an injection of a radioactive glucose-like substance and then is told to lie down with her head in a scanner.Libby's physician has referred her to have a(n)____________ scan.

Accepted Answer

A) positron emission tomography (PET) 
B) functional magnetic resonance imaging (fMRI) 
C) magnetoencephalography (MEG) 
D) electroencephalogram (EEG)

Question 2

___________ are structures in the cellular nucleus that are lined with all of the genes an individual inherits.

Accepted Answer

A) Nucleotides 
B) DNA 
C) Amino acids 
D) Chromosomes

Question 3

_____________ has been scientifically linked to dominance and aggression in both human and animal studies.

Accepted Answer

A) Cortisol 
B) Testosterone 
C) Dopamine 
D) Glutamate

Question 4

The multi-generational change in the frequency of genes within an interbreeding population is known as

Accepted Answer

A) heritability. 
B) evolutionary psychology. 
C) evolution. 
D) sexual selection.

Question 5

Which part of the neuron typically receives messages from other neurons?

Accepted Answer

A) myelin sheath 
B) dendrites 
C) axon 
D) axon terminals

Question 6

What is the maximum value for heritability?

Accepted Answer

A) -1.0 
B) +1.0 
C) -.10 
D) +.10

Question 7

After neurotransmitter molecules are released,they may be broken down by enzymes or they may be re-absorbed back into the axon,a process known as

Accepted Answer

A) inhibition. 
B) degradation. 
C) refraction. 
D) reuptake.

Question 8

Robert is out for a walk in the woods when he sees two male deer charging at each other,butting heads,and locking antlers.Robert knows that the winner of this fight will be more likely to mate with the nearby female deer.This fight is an example of

Accepted Answer

A) intersexual selection. 
B) evolutionary psychology. 
C) adaptation. 
D) intrasexual selection.

Question 9

The voltage of a neuron's ______________ is typically around -70 millivolts.

Accepted Answer

A) postsynaptic potential 
B) resting potential 
C) refractory period 
D) action potential

Question 10

The ________ regulates and maintains constant internal bodily states by stimulating the pituitary gland.

Accepted Answer

A) thalamus 
B) hypothalamus 
C) amygdala 
D) hippocampus

Question 11

The pituitary gland is known as the _______ gland because it controls the other glands in the body.

Accepted Answer

A) master 
B) alpha 
C) dominant 
D) dorsal

Question 12

If two corresponding genes at a given location on a pair of chromosomes are the same,they are referred to as

Accepted Answer

A) genotyped. 
B) homozygous. 
C) phenotyped. 
D) heterozygous.

Question 13

When Julia's parents go out for the night,she turns the volume on her music up as high as it will go.Although the stimulus (sound)is now much louder,Julia's neurons are still firing with the same intensity.This is known as the

Accepted Answer

A) action potential theory. 
B) resting potential. 
C) refractory period. 
D) all-or-none principle.

Question 14

The fight-or-flight response is mobilized by the

Accepted Answer

A) central nervous system. 
B) somatic nervous system. 
C) sympathetic nervous system. 
D) parasympathetic nervous system.

Question 15

Which best describes the current understanding of sex differences in cognitive abilities?

Accepted Answer

A) There are no sex differences in cognitive abilities. 
B) There is currently a debate about whether these differences are genetic or the result of cultural and environmental factors. 
C) There is no evidence that these differences are biological. 
D) There is no evidence that cultural and environmental factors can affect these differences.

Question 16

An area of damage in the brain is called a(n)

Accepted Answer

A) sham. 
B) lesion. 
C) dark spot. 
D) degraded mass.

Question 17

During an action potential,the electrical charge inside the neuron is _________ compared to the electrical charge outside the neuron.

Accepted Answer

A) positive 
B) balanced 
C) negative 
D) neutral

Question 18

Most of the higher functions of the brain,such as reasoning and language,are located in the

Accepted Answer

A) limbic system. 
B) midbrain. 
C) cerebral cortex. 
D) hypothalamus.

Question 19

Having a dimple on your chin is determined by a single gene pair.If you inherited one dimple gene and one non-dimple gene from your parents,you could be described as ____________ for this trait.

Accepted Answer

A) heterozygous 
B) homozygous 
C) phenotypical 
D) genotypical

Question 20

"All-or-none" is the principle stating that

Accepted Answer

A) a neuron always fires at the same strength. 
B) the potential inside a neuron must increase from 0mV to +100mV to initiate an action potential. 
C) all dendrites on a neuron must be receiving depolarizing signals in order to initiate an action potential. 
D) during the refractory period a neuron will not fire.

Exam 3: C: Biological Psychology

Libby's physician refers her to a medical centre to have the biochemical activity in her brain analyzed.She is given an injection of a radioactive glucose-like substance and then is told to lie down with her head in a scanner.Libby's physician has referred her to have a(n) ____________ scan.