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Quiz 1a

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Weeks 01 - 03
S E
Quiz by S E, updated more than 1 year ago
S E
Created by S E over 5 years ago
126
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Resource summary

Question 1

Question
A drug that blocks the effects of a neurotransmitter is a(n) ____; a drug that mimics or increases the effects is a(n) ____.
Answer
  • Neuromodulator; synergist
  • Depressant; stimulant
  • Agonist; antagonist
  • Antagonist; agonist

Question 2

Question
A person with two recessive genes is considered to be ___ for that trait:
Answer
  • Marginal
  • Unitary
  • Heterozygous
  • Homozygous

Question 3

Question
A trait not expressed when combined with a dominant trait is call a(n) ___ trait.
Answer
  • Nurture
  • Recessive
  • Dominant
  • Homozygous

Question 4

Question
A(n) ____ explanation describes eating in terms of the hypothalamus affecting insulin production, which affects the availability of glucose in cells.
Answer
  • Physiological
  • Evolutionary
  • Ontogentic
  • Functional

Question 5

Question
Chemically, what is the route from genes to their expression?
Answer
  • DNA to RNA to proteins
  • Proteins to DNA to RNA
  • RNA to DNA to proteins
  • DNA to proteins to RNA

Question 6

Question
Exocytosis is the process by which neurotransmitters are ___.
Answer
  • Synthesised
  • Reuptaken into the presynaptic neuron
  • Destroyed
  • Released from the presynaptic neuron

Question 7

Question
Few pianists can play quickly enough to play the Minute Waltz in a minute. The finger movements that are required are likely to involve which type of neurotransmitter effects?
Answer
  • Metabotropic effects
  • Second messenger effects
  • Neuromodulator effects
  • Ionotropic effects

Question 8

Question
Human language developed as the result of genes and the opportunity to hear language during a sensitive period in early life. What type of explanation is this?
Answer
  • Physiological
  • Evolutionary
  • Functional
  • Ontogenetic

Question 9

Question
In general, biologists who speak of sex-linked genes are typically referring to genes on ___.
Answer
  • The X chromosome
  • The Y chromosome
  • More than one chromosome
  • Autosomal chromosomes

Question 10

Question
In the context of the “three R’s” of animal research, refinement refers to ___.
Answer
  • Recognising potential confounders
  • Reusing prior research analysis
  • Recombining effective statistical tests
  • Reducing pain and discomfort

Question 11

Question
Like an action potential, an EPSP results from:
Answer
  • Potassium ions exiting the cell
  • Potassium ions entering the cell
  • Sodium ions exiting the cell
  • Sodium ions entering the cell

Question 12

Question
Mapping out the relationship between shared bone structures across different species suggests there is a(n) ____ explanation.
Answer
  • Behavioural
  • Physiological
  • Evolutionary
  • Ontogentic

Question 13

Question
Minimalists believe that:
Answer
  • No animal research should be conducted
  • Researchers should only use small animals
  • Some animal research is acceptable, but not all
  • All research should be done on animals

Question 14

Question
Neurons typically have one __, but many __.
Answer
  • Cell body; axons
  • Dendrite; axons
  • Axon; dendrites
  • Dendrite; cell bodies

Question 15

Question
Neuropeptides are synthesised in the ___.
Answer
  • Postsynaptic terminal
  • Presynaptic terminal
  • Cell body
  • Dendrites

Question 16

Question
Nodes of Ranvier are ___.
Answer
  • Gaps in the myelin of axons
  • Spiny outgrowths on dendrites
  • Responsible for cell metabolism
  • Also known as myelin sheath

Question 17

Question
Of the following, the most important consideration in developing a drug that will act in the brain is:
Answer
  • If the drug will cross the blood-brain barrier
  • If the drug can be inexpensively manufactured
  • The number of people who will use the drug
  • How long the drug will act

Question 18

Question
Saltatory conduction ____ the velocity of action potentials and ____ the amount of energy used by the neuron.
Answer
  • Increases; decreases
  • Decreases; increases
  • Increases; increases
  • Decreases; decreases

Question 19

Question
Suppose both the father and the mother are "heterozygous" for the gene that controls ability to curl the tongue lengthwise, and this gene is dominant. What can we predict about their children?
Answer
  • All will be heterozygous for the ability to curl
  • All will be homozygous for the inability to curl
  • All will be homozygous for the ability to curl
  • They may be homozygous or heterozygous for ability to curl, or homozygous for inability

Question 20

Question
The brain area most often linked to drug addiction is the:
Answer
  • Nucleus accumbens
  • Brain stem
  • Frontal lobes
  • Whole limbic system

Question 21

Question
The correct sequence of chemical events at a synapse is:
Answer
  • Reuptake, release, transport, synthesis
  • Transport, release, reuptake, synthesis
  • Synthesis, transport, release, reuptake
  • Recycle, reuse, release, return

Question 22

Question
The presynaptic terminal stores high concentrations of neurotransmitter molecules in:
Answer
  • Dendrites
  • Vesicles
  • Peptides
  • Axons

Question 23

Question
The structure that contains the chromosomes is called the:
Answer
  • Endoplasmic reticulum
  • Nucleus
  • Mitochondrion
  • Ribosome

Question 24

Question
The surface of a dendrite is lined with specialised junctions through which the dendrite receives information from other neurons. What are these junctions called?
Answer
  • Axons
  • Synaptic hillocks
  • Glia
  • Synaptic receptors

Question 25

Question
Compared to ionotropic effects, metabotropic effects are:
Answer
  • quicker and briefer
  • slower and longer lasting
  • slower and briefer
  • quicker and longer lasting

Question 26

Question
What is the primary difference between temporal summation and spatial summation?
Answer
  • Temporal summation produces a hyperpolarization instead of a depolarization
  • Only spatial summation can produce an action potential
  • Spatial summation alters the response of more than one postsynaptic cell
  • Spatial summation depends on contributions from more than one sensory neuron

Question 27

Question
What is the result if a stimulus shifts the potential inside a neuron from the resting potential to a more negative potential?
Answer
  • Depolarization
  • An action potential
  • Hyperpolarization
  • A threshold

Question 28

Question
Where do the metabolic activities occur that provide energy for all of the other activities of the cell?
Answer
  • Mitochondria
  • Ribosomes
  • Lysosomes
  • Golgi complexes

Question 29

Question
Which of the following is TRUE of local neurons?
Answer
  • They exchange information with distant neurons
  • They abide by the all-or-nothing principle
  • The change in membrane potential increases as it travels
  • They produce graded potentials

Question 30

Question
Which type of glia builds myelin sheaths around axons in the periphery of the body?
Answer
  • Astrocytes
  • Schwann cells
  • Radial glia
  • Oligodendrocytes
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