Exam (elaborations)
Chapter 48 Mastering Biology Questions and Answers 2024
- Course
- Institution
Chapter 48 Mastering Biology
[Show more]
Content preview
Chapter 48 Mastering Biologyd. dendrites - answer1. The "information receiving" section of a neuron is its _____.
a. Schwann cells
b. Glia
c. Axon terminal
d. Dendrites
a. Cell body - answer2. A neuron's nucleus is located in its _____.
a. Cell body
b. Axon
c. Myelin sheath
d. Dendrite
e. Synaptic terminals
a. dendrites - answer3. A nerve impulse moves toward a neuron's cell body along
_____.
a. dendrites
b. synaptic terminals
c. oligodendrocytes
d. axons
e. nodes of Ranvier
d. axon - answer4. A nerve impulse moves away from a neuron's cell body along _____.
a. dendrites
b. Nissl bodies
c. synapses
d. axon
e. glia
c. node of Ranvier ... node of Ranvier - answer5. An impulse relayed along a myelinated
axon "jumps" from _____ to _____.
a. oligodendrocyte ... Schwann cell
b. node of Ranvier ... Schwann cell
c. node of Ranvier ... node of Ranvier
d. Schwann cell ... Schwann cell
e. Schwann cell ... node of Ranvier
c. myelin sheath - answer6. Axons insulated by a(n) _____ are able to conduct impulses
faster than those not so insulated.
a. node of Ranvier
b. synaptic terminal
, c. myelin sheath
d. layer of asbestos
e. astrocytes
e. Schwann cells - answer7. What type of cell makes up the myelin sheath of a motor
neuron?
a. astrocytes
b. microglial cells
c. Ranvier cells
d. ependymal cells
e. Schwann cells
c. synaptic terminal - answer8. What part of a neuron relays signals from one neuron to
another neuron or to an effector?
a. dendrite
b. axon hillock
c. synaptic terminal
d. axon
e. node of Ranvier
a. potassium ions and proteins - answer9. Choose the set that includes the most
charged compounds that are more abundant inside neurons, in the cytosol, than outside
the neurons, in the extracellular fluid.
a. potassium ions and proteins
b. sodium and chloride ions
c. sodium and potassium ions
d. chloride ions and proteins
e. proteins and sodium ions
a. sodium ions out of the cell and potassium ions into the cell - answer10. The operation
of the sodium-potassium "pump" moves _____.
a. sodium ions out of the cell and potassium ions into the cell
b. sodium and potassium ions out of the cell
c. sodium ions into the cell and potassium ions out of the cell
d. sodium and potassium ions into the cell
c. hyperpolarization of the neuron - answer11. For a neuron with an initial membrane
potential at -70 mV, an increase in the movement of potassium ions out of that neuron's
cytoplasm would result in the _____.
a. replacement of potassium ions with calcium ions
b. depolarization of the neuron
c. hyperpolarization of the neuron
d. replacement of potassium ions with sodium ions
c. Membrane potential - answer12. Which term describes the difference in electrical
charge across a membrane?
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller julianah420. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83100 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now