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Quiz 1a

Descrição

Weeks 01 - 03
S E
Quiz por S E, atualizado more than 1 year ago
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Criado por S E aproximadamente 5 anos atrás
125
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Resumo de Recurso

Questão 1

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

Questão 2

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

Questão 3

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

Questão 4

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

Questão 5

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

Questão 6

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

Questão 7

Questão
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?
Responda
  • Metabotropic effects
  • Second messenger effects
  • Neuromodulator effects
  • Ionotropic effects

Questão 8

Questão
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?
Responda
  • Physiological
  • Evolutionary
  • Functional
  • Ontogenetic

Questão 9

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

Questão 10

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

Questão 11

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

Questão 12

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

Questão 13

Questão
Minimalists believe that:
Responda
  • 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

Questão 14

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

Questão 15

Questão
Neuropeptides are synthesised in the ___.
Responda
  • Postsynaptic terminal
  • Presynaptic terminal
  • Cell body
  • Dendrites

Questão 16

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

Questão 17

Questão
Of the following, the most important consideration in developing a drug that will act in the brain is:
Responda
  • 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

Questão 18

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

Questão 19

Questão
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?
Responda
  • 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

Questão 20

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

Questão 21

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

Questão 22

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

Questão 23

Questão
The structure that contains the chromosomes is called the:
Responda
  • Endoplasmic reticulum
  • Nucleus
  • Mitochondrion
  • Ribosome

Questão 24

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

Questão 25

Questão
Compared to ionotropic effects, metabotropic effects are:
Responda
  • quicker and briefer
  • slower and longer lasting
  • slower and briefer
  • quicker and longer lasting

Questão 26

Questão
What is the primary difference between temporal summation and spatial summation?
Responda
  • 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

Questão 27

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

Questão 28

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

Questão 29

Questão
Which of the following is TRUE of local neurons?
Responda
  • 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

Questão 30

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

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