Exam (elaborations)
ASU BIO 181 EXAM 3 QUESTIONS WITH COMPLETE SOLUTIONS 2024/2025
- Course
- Institution
ASU BIO 181 EXAM 3 QUESTIONS WITH COMPLETE SOLUTIONS 2024/2025
[Show more]
Content preview
ESTUDYASU BIO 181 EXAM 3 QUESTIONS WITH
COMPLETE SOLUTIONS 2024/2025
**1. True or False: Excitatory synapses make the post-synaptic cell less likely to fire.**
- A) True
- B) False
✔✔ **Answer**: B) False.
---
**2. Which of the following are neural tissues?**
- A) Heart, liver, brain
- B) Stomach, intestines, pancreas
- C) Spinal cord, sensory neurons, brain
- D) Muscles, bones, ligaments
✔✔ **Answer**: C) Spinal cord, sensory neurons, brain.
---
**3. How do glial cells (like the myelin sheath) speed up neuron firing?**
- A) By making neurons fire slower
- B) By wrapping a fatty insulating substance around axons
- C) By removing ions from the axons
,ESTUDY
- D) By stopping the firing of neurons
✔✔ **Answer**: B) By wrapping a fatty insulating substance around axons.
---
**4. The action potential is the result of:**
- A) A chemical reaction
- B) The movement of ions
- C) The production of hormones
- D) A buildup of fat
✔✔ **Answer**: B) The movement of ions.
---
**5. True or False: Receptors are made from membrane-bound polyribosomes.**
- A) True
- B) False
✔✔ **Answer**: A) True.
---
**6. Which are the four types of glial cells and their functions?**
, ESTUDY
- A) Microglia: cleans up cellular debris, Astrocytes: support and repair neurons, Schwann Cells:
myelinate axons in the PNS, Satellite Cells: form the brain-blood barrier
- B) Microglia: cause inflammation, Astrocytes: produce hormones, Schwann Cells: absorb nutrients,
Satellite Cells: move ions around the body
- C) Microglia: block neuron signals, Astrocytes: support muscle growth, Schwann Cells: support
metabolism, Satellite Cells: help with digestion
- D) Microglia: clean toxins, Astrocytes: send signals, Schwann Cells: block signals, Satellite Cells: aid in
breathing
✔✔ **Answer**: A) Microglia: cleans up cellular debris, Astrocytes: support and repair neurons,
Schwann Cells: myelinate axons in the PNS, Satellite Cells: form the brain-blood barrier.
---
**7. True or False: Acetylcholine is exocytosed from the presynaptic cell to start the action potential in
the postsynaptic cell.**
- A) True
- B) False
✔✔ **Answer**: A) True.
---
**8. True or False: When the presynaptic cell contacts a muscle cell, the synapse is called a motor end
plate.**
- A) True
- B) False
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 Estudyr. 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)
72042 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now