Neuroscience Chapter 5
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Questions and Answers

Which process primarily allows neurotransmitters to travel across the synaptic cleft?

  • Pushed by ions.
  • Carried by the electrical impulse.
  • Carried by synaptic vesicles.
  • By diffusion. (correct)

    • What occurs after neurotransmitters reach the post-synaptic cell?

  • deliver electrical impulses to the post-synaptic cell.
  • enter the post-synaptic cell.
  • bind to receptors on the post-synaptic cell membrane. (correct)
  • insert new receptors into the post-synaptic cell membrane.

    • Which of the following neurotransmitters is known for regulating pain?

  • endorphins (correct)
  • dopamine
  • serotonin
  • acetylcholine

    • Which activities contribute to neural plasticity in learning and memory?

    <p>Participating in a practice group</p> Signup and view all the answers

    What is a major factor that triggers the release of neurotransmitters at a chemical synapse?

    <p>calcium ions</p> Signup and view all the answers

    During a lecture lasting 1 hour and 20 minutes, in which memory compartment is most of the information primarily housed after leaving the room?

    <p>Y</p> Signup and view all the answers

    Which variable represents the slope in the function $f(x) = mx + b$?

    <p>$m$</p> Signup and view all the answers

    Given that 10 ml equals how many microliters?

    <p>10,000</p> Signup and view all the answers

    Which of the following statements regarding diffusion in cells is accurate?

    <p>The 2 x 2 x 2 cm cell will diffuse faster.</p> Signup and view all the answers

    What is the correct classification of the statement, 'if the amount of dietary fat is reduced, then the rate of colon cancer will decrease'?

    <p>hypothesis</p> Signup and view all the answers

    What measure best describes the spread of sample data around its mean?

    <p>variance</p> Signup and view all the answers

    In a t-test, a result of 0.81 indicates what probability related to the observed difference between two means?

    <p>81%</p> Signup and view all the answers

    When comparing units of measurement, which of the following is the longest?

    <p>1 millimeter</p> Signup and view all the answers

    What occurs when you wake up after a party and see a large Amoeba?

    <p>It has much cell volume for gas exchange.</p> Signup and view all the answers

    What is the next logical step after generating a hypothesis in the scientific method?

    <p>Conduct an experiment</p> Signup and view all the answers

    What would be the appropriate action after forming a hypothesis in the scientific method?

    <p>Conduct an experiment</p> Signup and view all the answers

    If 10 ml is converted to microliters, how many microliters does it equal?

    <p>10,000</p> Signup and view all the answers

    What is the most likely outcome if the amount of dietary fat is decreased?

    <p>Decrease in colon cancer rate</p> Signup and view all the answers

    Among the following units of measurement, which represents the longest length?

    <p>1 millimeter</p> Signup and view all the answers

    What best describes the variance in a set of sample data?

    <p>The measure of how the data spreads around the mean</p> Signup and view all the answers

    In a t-test with a result of 0.81, what probability level indicates that observed differences are due to chance?

    <p>81%</p> Signup and view all the answers

    Which of the following configurations represents the smallest surface area/volume ratio?

    <p>3 x 3 x 3 cm cell</p> Signup and view all the answers

    Which of the following statements about diffusion in cells is accurate?

    <p>Rate of diffusion is affected by cell size</p> Signup and view all the answers

    When is long-term potentiation most likely to happen in neural activity?

    <p>After repeated stimulation</p> Signup and view all the answers

    What incorrectly describes the function $f(x) = mx + b$?

    <p>The variable 'x' is the constant</p> Signup and view all the answers

    Which statement correctly describes the consequence of reducing dietary fat according to a hypothesis?

    <p>It suggests a potential relationship between the two variables.</p> Signup and view all the answers

    Which unit is the smallest in length?

    <p>1 picometer</p> Signup and view all the answers

    If a cell is 2 x 2 x 2 cm, which cell would have a greater surface area/volume ratio?

    <p>1 x 1 x 1 cm cell</p> Signup and view all the answers

    In which scenario is the variance of a sample indicated?

    <p>When determining data spread around the mean.</p> Signup and view all the answers

    What would be the correct follow-up step after making a prediction in the scientific method?

    <p>Conduct an experiment.</p> Signup and view all the answers

    What is the probability of observing a difference due to chance if a t-test returns 0.81?

    <p>81%</p> Signup and view all the answers

    What happens when a large Amoeba exceeds a certain size?

    <p>Too little volume for sufficient diffusion.</p> Signup and view all the answers

    How many microliters are represented by a setting of MAX 200 on a P-20 pipette?

    <p>200 μl</p> Signup and view all the answers

    Which is a correct ordering of the scientific method starting from hypothesis generation?

    <p>1, 3, 4, 2, 5</p> Signup and view all the answers

    What denotes the slope in the linear equation $f(x) = mx + b$?

    <p>$m$</p> Signup and view all the answers

    Which arrow indicates when long-term potentiation is occurring?

    <p>A, B, and C</p> Signup and view all the answers

    What memory compartment primarily holds information after an extended lecture?

    <p>Y</p> Signup and view all the answers

    What does the statement 'if the amount of dietary fat is reduced, then the rate of colon cancer will decrease' exemplify?

    <p>Hypothesis</p> Signup and view all the answers

    In which step of the scientific method do you conduct experiments to test your hypothesis?

    <p>Conduct an experiment</p> Signup and view all the answers

    In the function $f(x) = mx + b$, what represents the slope?

    <p>$m$</p> Signup and view all the answers

    How many microliters are in 10 ml?

    <p>10,000</p> Signup and view all the answers

    Which of the following units of measurement is the longest?

    <p>1 millimeter</p> Signup and view all the answers

    Which cell would have the smallest surface area/volume ratio?

    <p>2 x 2 x 2 cm cell</p> Signup and view all the answers

    In which cell will diffusion happen more quickly?

    <p>1 x 1 x 1 cm cell</p> Signup and view all the answers

    What is the probability that any observed difference between the means in a t-test result of 0.81 is due to chance?

    <p>81%</p> Signup and view all the answers

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