LIFSCI 7C XL; Hierarchical organization of muscle & Cross-bridge cycle Exam Questions and Answers Latest Update Graded A+
0 view 0 purchase
Course
LIFSCI 7C XL - Animation: Hierarchical
Institution
LIFSCI 7C XL - Animation: Hierarchical
LIFSCI 7C XL; Hierarchical organization of muscle & Cross-bridge cycle Exam Questions and Answers Latest Update Graded A+
The cells that make up skeletal muscles are called: - Answers Muscle fibers
The functional unit of skeletal muscles are called: - Answers Sarcomeres
Which of the following is...
LIFSCI 7C XL; Hierarchical organization of muscle & Cross-bridge cycle Exam Questions and Answers
Latest Update Graded A+
The cells that make up skeletal muscles are called: - Answers Muscle fibers
The functional unit of skeletal muscles are called: - Answers Sarcomeres
Which of the following is not true of muscle fibers? - Answers Many muscle fibers are packaged into a
muscle fibril
Thick filaments are made of ____________ and thin filaments are made of ____________. - Answers
Myosin; actin
Skeletal muscle appears striated with light and dark regions. Which of the following is found in the dark
regions? - Answers Actin and myosin
What is required to separate actin and myosin during sarcomere contraction? - Answers ATP
Place the following events in muscle contraction in the correct sequence from first to last:
1. ATP binds to myosin head.
2. Myosin head interacts with actin.
3. ATP is converted to ADP and Pi.
4. Myosin head is cocked back.
5. Myosin head pivots in the power stroke.
6. ADP and Pi are released from myosin. - Answers 1, 3, 4, 2, 6, 5
The force generated by a muscle depends on: - Answers All of these responses are required for force
generation:
-The number of sarcomeres contracting.
-The degree of overlap between actin and myosin in the sarcomeres.
-The number of cross bridges between actin and myosin in the sarcomeres.
-The amount of ATP available.
Which of the following is referred to as the power stroke? - Answers A conformational change in myosin
The force generated by a long muscle varies as it contracts through its range of movement. At which
point is the greatest force generated? - Answers In the middle of the contraction when the muscle is at
an intermediate length
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 TutorJosh. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
