Exam (elaborations)
GMS 6474 FINAL EXAM STUDY MATERIALS QUESTION AND ANSWERS (VERIFIED ANSWERS)
- Course
- Institution
GMS 6474 FINAL EXAM STUDY MATERIALS QUESTION AND ANSWERS (VERIFIED ANSWERS)
[Show more]
Content preview
ESTUDYGMS 6474 FINAL EXAM STUDY MATERIALS QUESTION
AND ANSWERS (VERIFIED ANSWERS)
1. **What does the sarcoplasmic reticulum (SR) store?**
- A. Glucose and proteins
- B. Proteins and calcium
- C. ATP and oxygen
- D. Sodium and potassium
**- ANSWER: B**
2. **What is the role of the transverse tubules in the muscle fiber?**
- A. To store calcium
- B. To allow communication between the inside of the muscle and the outside
- C. To anchor the myofilaments
- D. To regulate blood flow
**- ANSWER: B**
3. **How is a sarcomere measured?**
- A. From the M line to the H zone
- B. From the A band to the I band
- C. From Z-disc to Z-disc
- D. From the H zone to the I band
,ESTUDY
**- ANSWER: C**
4. **What is contained in the I band of the sarcomere and what color is the band?**
- A. Thick filaments; dark (anisotropic)
- B. Thin filaments, titin, Z-disc; light (isotropic)
- C. Thick filaments, Z-disc; dark (isotropic)
- D. Myomesin, titin, M line; light (anisotropic)
**- ANSWER: B**
5. **What is contained in the A band of the sarcomere and what color is the band?**
- A. Thin filaments, titin; light (isotropic)
- B. Thick and thin filaments; dark (scatters light)
- C. Thick filaments, M line; light (anisotropic)
- D. Thin filaments, Z-disc; dark (isotropic)
**- ANSWER: B**
6. **What is contained in the H zone and what color is the band?**
- A. Thick filaments, light
- B. Thin filaments, dark
- C. Thick and thin filaments, light
- D. Myomesin, dark
**- ANSWER: A**
,ESTUDY
7. **What is contained in the M line?**
- A. Thin filaments
- B. Myomesin, thick filaments, middle of H zone
- C. Titin, thin filaments
- D. Z-disc, thick filaments
**- ANSWER: B**
8. **What does titin do in the sarcomere?**
- A. Anchors thin filaments to Z-disc
- B. Structural protein
- C. Regulates calcium levels
- D. Binds actin and myosin
**- ANSWER: B**
9. **How many zones can you see when the sarcomere is relaxed?**
- A. Only the I band and H zone
- B. Only the A band
- C. All zones
- D. Only the M line
**- ANSWER: C**
, ESTUDY
10. **How many zones can be seen when the sarcomere is contracted?**
- A. All zones are visible
- B. I band shortens, H zone disappears, thick and thin filaments overlap
- C. The A band shortens
- D. The I band and H zone increase in size
**- ANSWER: B**
11. **What is the contractile unit of skeletal muscle?**
- A. The myofibril
- B. The myofilament
- C. The sarcomere
- D. The muscle fiber
**- ANSWER: C**
12. **What is the main component of the thick filaments?**
- A. Actin
- B. Troponin
- C. Tropomyosin
- D. Myosin
**- ANSWER: D**
13. **What is the largest protein in the body?**
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 $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
84146 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now