Brain And Behavior Exam 2

63 Questions | Total Attempts: 660

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Brain And Behavior Exam 2

This is questions over chapter 4-6 and also includes some practice questions you can take the quiz as much as you like. . . Good luck


Questions and Answers
  • 1. 
    Which of the following is a pure compound derived from poppies?
    • A. 

      Opium

    • B. 

      Dynorphin

    • C. 

      Enkephalin

    • D. 

      Morphine

  • 2. 
    If a newly developed drug is found to bind to dopamine receptors but does not activate them, the drug is classified as a(n)
    • A. 

      Antagonist

    • B. 

      Ligand

    • C. 

      Prototype

    • D. 

      Agonist

  • 3. 
    A major site of origin of projections using the transmitter norepinephrine is the
    • A. 

      Locus coeruleus

    • B. 

      Raphe nucleus

    • C. 

      Basal forebrain

    • D. 

      Substantia nigra

  • 4. 
    Steroid hormones typically exert their effects by
    • A. 

      Activating second messengers

    • B. 

      Directly releasing synaptic transmitters

    • C. 

      Altering ion permeability of cells

    • D. 

      Binding to intracellular receptors

  • 5. 
    The posterior pituitary
    • A. 

      Contains the cell bodies of oxytocin neurosecretory cells

    • B. 

      Contains the axon terminals of vasopressin neurosecretory cells

    • C. 

      Releases its horomones into the hypothalamic-pituitary portal system

    • D. 

      Is regulated by releasing factors from the hypothalamus

  • 6. 
    Which of the following are two names for classes of hormones
    • A. 

      Lipophilic and lipotropic

    • B. 

      Protein and steroid

    • C. 

      Transcriptional and translational

    • D. 

      Iontropic and Metabotropic

  • 7. 
    Which of the follwoing hominids emerged first in the course of evolution?
    • A. 

      Homo habilis

    • B. 

      Australopithecus

    • C. 

      Homo sapiens

    • D. 

      Homo erectus

  • 8. 
    Increasing the expression of the gene for B- catenin in transgenic mice produces which of the following?
    • A. 

      Smooth cortex

    • B. 

      Highly folded cortex

    • C. 

      Increase in size of frontal cortex

    • D. 

      Decrease in size of frontal cortex

  • 9. 
    The streamlined body forms of the tuna and the dolphin provide an example of
    • A. 

      Analogy

    • B. 

      Homology

    • C. 

      Homoplasy

    • D. 

      Tautology

  • 10. 
    Phencyclidine (PCP) acts on receptors that normally respond to the neurotransmitter
    • A. 

      Acetylcholine

    • B. 

      Dopamine

    • C. 

      Glutamate

    • D. 

      Serotonin

  • 11. 
    The discovery that the brain contains specific receptors for manufactured opiate drugs, such as morphine, implies that the body must make an______ substance to interact with the same receptors
    • A. 

      Exogenous

    • B. 

      Endogenous

    • C. 

      Excitatory

    • D. 

      Extemporaneous

  • 12. 
    The first endogenous opiates to be discovered were the
    • A. 

      Amphetamines

    • B. 

      Cannabinoids

    • C. 

      Endorphins

    • D. 

      Enkephalins

  • 13. 
    What is the appropriate technique for visualizing the location of receptors within cells?
    • A. 

      Immunocytochemistry

    • B. 

      Radioimmunoassay

    • C. 

      Up-regulation

    • D. 

      Down- regulation

  • 14. 
    Hormonal messages can be generally described as
    • A. 

      Digital

    • B. 

      All-or-none

    • C. 

      Analog

    • D. 

      High-threshold responses

  • 15. 
    Steroid hormones are derived from
    • A. 

      Protein

    • B. 

      Thiamine

    • C. 

      Cholesterol

    • D. 

      Acetylcholine

  • 16. 
    The current system that is used for classifying animals were originated by
    • A. 

      Carolus Linnaeus

    • B. 

      Alfred Russel Wallace

    • C. 

      Charles Darwin

    • D. 

      Jean-Baptiste de Lamarck

  • 17. 
    On a graph in which brain weight is related to body weight using log scales, the line that best describes the relatioship in mammals has a slop of about
    • A. 

      0.5

    • B. 

      0.6

    • C. 

      0.7

    • D. 

      0.8

  • 18. 
    The brain of the modern chimpanzee is about the same size as the brain of
    • A. 

      Australopithecus

    • B. 

      Homo habilis

    • C. 

      Homo erectus

    • D. 

      None of the above

  • 19. 
    Which fo the following is not part of the amine subtype of small-moeluce neurotransmitters?
    • A. 

      Norepinephrine

    • B. 

      Serotonin

    • C. 

      Dopamine

    • D. 

      Glycine

  • 20. 
    If a newly developed drug is found to bind to serotonin receptors and activate them, the drug is classified as
    • A. 

      An agonist

    • B. 

      An antagonist

    • C. 

      A prototype

    • D. 

      A ligand

  • 21. 
    Down-regualtion is the process by which?
    • A. 

      An excessive amount of a drug is avaliable to the recptor over a period of time, causing an increase in the receptor sites that can be counted

    • B. 

      There is an increase in the effectiveness of endogenous neurotransmitters

    • C. 

      An excessive number of transmitter molecules are available to the receptor over a period of time, causing a decrease in the receptor sites that can be counted

    • D. 

      There is a decrease in thea mount of drug necessary for regulation of normal functioning

  • 22. 
    Which of the following structures does not contain cholinergic nerve cell bodies and projections?
    • A. 

      Nucleus basalis

    • B. 

      Raphe nucleus

    • C. 

      Pedunculopntine nucleus

    • D. 

      Medial spetal nucleus

  • 23. 
    The dose at which a drug has a half-maximal reponse is termed the
    • A. 

      LD 50

    • B. 

      ED 50

    • C. 

      Therapeutic dose

    • D. 

      Saturated dose

  • 24. 
    As a consequence of repeated use of drug, larger and larger doses of the drug may be nencessary in order to achieve the same effect. This is a consequence of the development of
    • A. 

      Tolerance

    • B. 

      Sensitization

    • C. 

      Withdrawal

    • D. 

      Cross-tolerance

  • 25. 
    A major site of origin of projections using the neurotransmitter dopamine is the
    • A. 

      Raphe nucleus

    • B. 

      Locus coeruleus

    • C. 

      Substantia nigra

    • D. 

      Basal forebrain