1. What protein in a sarcomere makes up the thin filaments? 2. Which protein in a sarcomere makes up the thick filaments? 3. Which of the above 2 proteins binds ATP or ADP and Pi to allow the power stroke to occur? 4. As a result of the protein binding the nucleotides, the distances from the Z line/Z disc become shorter or longer? 5. What protein binds calcium to allow myosin to walk along actin in the sliding filament model? When it binds calcium, it moves ______ out of the way so myosin can walk along actin. 6. Compare how calcium can enter the cytoplasm 2 ways (review cell signaling and how neurons stimulate contraction)
Added by Esperanza H.
Close
Step 1
Step 1: The protein in a sarcomere that makes up the thin filaments is called actin. Show more…
Show all steps
Your feedback will help us improve your experience
Shaiju T and 69 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
1. A skeletal muscle fiber contains all of the following except Group of answer choices a sarcoplasmic reticulum myosin vesicles of acetylcholine actin 2. The sliding filament theory states that: the thin filaments shorten which decreases the overall length of the sarcomere the thin filaments slide toward the center of the sarcomere while the thick filaments stay stationary the thick filaments slide toward the center of the sarcomere while the thin filaments stay stationary thin and thick filaments never interact with one another during muscle contraction
Shaiju T.
1. Name and describe the key protein components of thin filaments. 2. Name and describe the key protein components of thick filaments. 3. After a nerve impulse arrives at the sarcolemma, list the next structures it will pass through to release calcium into the sarcoplasm 4. After calcium is released into the sarcoplasm, describe the key steps involved in contracting a single sarcomere
Madhur L.
1)What happens between the firing of a somatic motor neuron until a sarcomere Contracts? 2) Starting with calcium-binding troponin, please describe all steps that occur until muscle contraction (caused by a power stroke). Please be sure to discuss the role of ATP/ADP/Pi and conformational changes in the myosin head. 3) How does the alignment of cytoskeletal filaments in smooth muscle differ from the arrangement in skeletal muscle? 4) How does this different structure relate to the differences in movement between skeletal and smooth muscle?
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD