Question 1

What happens when Parkinson's disease patients are given the L-dopa drug?

Accepted Answer

A)  It works as a temporary pain killer. 
B)  It eats up all the malfunctioning cells in the muscles so that new cells and tissues are created that will bring back the control over their muscles. 
C)  The brain converts it into dopamine which helps them regain control over their muscles. 
D)  It initiates the formation of new tissues.

Question 2

Once the body has been prepared to respond to a threatening situation,what mechanism calms the body?

Accepted Answer

A)  Sympathetic nervous system 
B)  Parasympathetic nervous system 
C)  Somatic nervous system 
D)  Peripheral nervous system

Question 3

Identify the technique in which one or more cells are removed from a fertilized embryo and encouraged to develop into duplicate embryos.

Accepted Answer

A)  Reproductive cloning 
B)  Embryo cloning 
C)  Therapeutic cloning 
D)  Fertilization

Question 4

Where would you expect to find the amygdala and hippocampus?

Accepted Answer

A)  Cerebral cortex 
B)  Limbic system 
C)  Midbrain 
D)  Cerebellum

Question 5

Within a given neuron,the speed of the impulse is ____.

Accepted Answer

A)  between 1 to 200 miles per hour 
B)  variable 
C)  constant 
D)  470 miles per hour

Question 6

The limbs of the body are controlled by which portion of the nervous system?

Accepted Answer

A)  Peripheral 
B)  Autonomic 
C)  Somatic 
D)  Sympathetic

Question 7

Which of the following is a function of the cerebrospinal fluid?

Accepted Answer

A)  It allows the brain to float inside the skull 
B)  Connects the brain and spinal cord with the organs and tissues of the body 
C)  It stimulates the somatic nervous system 
D)  Transmits commands to the voluntary skeletal muscles by way of the motor neurons

Question 8

Which part of a neuron would be expected to show damage in a disease such as multiple sclerosis,which results in loss of muscle control due to impairment in brain to muscle communication?

Accepted Answer

A)  Ion 
B)  Myelin sheath 
C)  Soma 
D)  Dendrite

Question 9

Why does the father's genetic contribution determine the sex of a child?

Accepted Answer

A)  Only the father's sex chromosome varies. 
B)  Males are the dominant sex. 
C)  Only the father contributes a sex chromosome. 
D)  Only the mother's sex chromosome varies.

Question 10

The ____ nervous system conserves and maintains the body's energy resources.

Accepted Answer

A)  sympathetic 
B)  parasympathetic 
C)  central 
D)  somatic

Question 11

The ____ is often referred to as the "master gland" because it releases about 10 different hormones that stimulate and regulate the rest of the endocrine system.

Accepted Answer

A)  adrenal 
B)  pituitary 
C)  thyroid 
D)  gonads

Question 12

The term depolarization refers to ____.

Accepted Answer

A)  the accumulation of negative ions inside the axon 
B)  a shift in the number of dendrites receiving positive and negative messages 
C)  the change in charge inside a part of the axon from negative to positive 
D)  neural impulses gathering on either end of a neuron

Question 13

What do the cerebellum and the pons have in common?

Accepted Answer

A)  Both are part of the hindbrain 
B)  Both regulate body sensation 
C)  Both are needed for sight 
D)  Both act as storage for memory

Question 14

What was the objective of the Human Genome Project?

Accepted Answer

A)  To fund the study of phenotypes 
B)  To study how heredity and environment influence behavior 
C)  To explore cerebral lateralization 
D)  To identify the genetic material in humans

Question 15

The portion of the nervous system containing all the nerves outside the brain and spinal cord is referred to as the ____.

Accepted Answer

A)  central nervous system 
B)  peripheral nervous system 
C)  autonomic nervous system 
D)  sympathetic nervous system

Question 16

Which of the following substances gain entry through the blood-brain barrier?

Accepted Answer

A)  Blood gases 
B)  Hormones 
C)  Toxins 
D)  All of the above

Question 17

When the neuron is in a resting state,the ions floating inside the axon are mostly ____,while those outside the axon's membrane are mostly ____.

Accepted Answer

A)  positively charged;negatively charged 
B)  negatively charged;positively charged 
C)  neutral;positively charged 
D)  negatively charged;neutral

Question 18

How are neurotransmitters removed from the synaptic cleft?

Accepted Answer

A)  Recycled through reuptake 
B)  Broken down by enzymes 
C)  Eliminated through depolarization 
D)  Both a and b

Question 19

Which term refers to the remarkable flexibility of the brain to alter its neural connections?

Accepted Answer

A)  Elasticity 
B)  Plasticity 
C)  Expansion 
D)  None of the above

Question 20

Identical twins are also called ____ and fraternal twins are called ____.

Accepted Answer

A)  deoxyribonucleic;glialgonadic 
B)  glialgonadic;deoxyribonucleic 
C)  monozygotic;dizygotic 
D)  dizygotic;monozygotic

Exam 2: Neural and Genetic Bases of Behavior