Tags Bridges and Tunnels

Animals & Plants Arts & Entertainment Auto Beauty & Health Books and Literature Business Electronics Engineering & Technology Food & Drink History Hobbies Jobs & Education Law & Government Math People & Society Science Social Studies Sports Travel & Places

0

Subjects>Travel & Places>Tourist Attractions

How does troponin facilitate cross bridge formation?

Anonymous

∙ 13y ago

Updated: 11/11/2022

Troponin controls the position of tropomyosin on the thin filament, enabling myosin heads to bind to the active sites on actin.

Wiki User

∙ 13y ago

Still curious? Ask our experts.

Chat with our AI personalities

Rene

Change my mind. I dare you.

Chat with Rene

Steve

Knowledge is a journey, you know? We'll get there.

Chat with Steve

Devin

I've poured enough drinks to know that people don't always want advice—they just want to talk.

Chat with Devin

Add your answer:

Earn +20 pts

Q: How does troponin facilitate cross bridge formation?

Write your answer...

Submit

Still have questions?

imp

Trending Questions

What is the largest lighthouse moved due to erosion problems? Is terracotta fragile? What is the difference between great basin and coastal plains? What degree of cloud cover does the Sahara Desert have? What are some autotrophs in the coral reef? Where is the Kern River Valley Branch Library in Lake Isabella located? What fort is on the Tennessee river? Can the gemsbok live in the desert? When were the first drawbridges made? What sea between Africa and Australia? How does a country benefit from tourism? How much surface area does the global ocean cover? How old is Po? How would you describe a mountain? What country in the Caribbean sea is closest to the US? Landmarks in the southeast USA? How much money did BP spend on the oil spill in the Gulf of Mexico? In infancy what is reflexive behavior and 3 three reasons why it is important? Which province has the least National Parks? What effect do you think the shrinking everglades has on wildlife?

Related Questions

Cross-bridge formation that results in muscle contraction requires intracellular?

calcium ions. When muscle cells are stimulated, calcium ions bind to troponin, which allows the myosin heads to form cross-bridges with actin filaments, initiating muscle contraction.

What blocks the myosin binding sites on the actin molecule preventing cross bridge formation?

Tropomyosin covers the myosin binding sites on actin molecules, preventing cross bridge formation in a resting muscle. When calcium ions bind to troponin, it causes a structural change in tropomyosin, uncovering the myosin binding sites and allowing muscle contraction to occur.

When the sarcomere is at rest what is covering the active sites on actin?

When the sarcomere is at rest, the active sites on actin are covered by tropomyosin molecules. Tropomyosin blocks the myosin-binding sites on actin, preventing cross-bridge formation and muscle contraction.

Which molecules are involved with regulation of cross bridge attachment activity?

Molecules like calcium ions, ATP, tropomyosin, and troponin play crucial roles in regulating the activity of cross-bridge attachment between actin and myosin filaments in muscle contraction. The availability and binding of these molecules affect the conformational changes in the myosin heads that allow them to bind to actin and generate force.

What describes the events of contraction in excitation-contraction coupling?

cross bridge formation "Excitation-contraction coupling" connects muscle fiber excitation to the muscle fiber contraction (cross bridge formation). During contraction, myosin heads form cross bridges many times-with each cross bridge generating a small amount of tension in the muscle fiber.

What best describes the events of excitation in excitation-contraction coupling?

cross bridge formation "Excitation-contraction coupling" connects muscle fiber excitation to the muscle fiber contraction (cross bridge formation). During contraction, myosin heads form cross bridges many times-with each cross bridge generating a small amount of tension in the muscle fiber.

What is the actin status to begin cross bridge formation?

The actin binding sites are exposed

How are troponins I and T different?

cardiac troponin I tests measure only cardiac troponin; tests for cardiac troponin T may cross-react with troponin found in other muscles and give positive or increased results in the absence of heart damage.

What does calcium bind to priot to cross-bridging?

Actin changes shape.

When does cross bridge cycling end?

Cross bridge cycling ends when calcium is actively transported back into the sarcoplasmic reticulum, leading to a decrease in intracellular calcium levels. This causes the tropomyosin to block the binding sites on actin, preventing myosin from interacting and forming cross bridges. This relaxation of the muscle allows the muscle fibers to return to their resting state.

How would the loss of acetylcholinesterase from the motor end affect skeletal muscle?

Acetylcholine release is necessary for skeletal muscle contraction, because it serves as the first step in the process, enabling the subsequent cross-bridge formation. A muscle's ability to contract depends on the formation of cross-bridges between myosin & actin filaments. A drug that blocks acetylcholine release would interfere with this cross-bridge formation and prevent muscle contraction

What is the process of excitation contraction coupling?

Excitation-contraction coupling is the process in muscle cells where an action potential triggers the release of calcium ions from the sarcoplasmic reticulum. The calcium ions bind to troponin, causing a conformational change that allows myosin to bind to actin and initiate muscle contraction. When the action potential ceases, calcium ions are pumped back into the sarcoplasmic reticulum, leading to muscle relaxation.

Still have questions?

imp

Resources

Top Categories

Product

Company

Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.