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What role does calcium and oxygen have in muscle contraction?

Calcium plays a key role in muscle contraction by binding to troponin, which allows tropomyosin to move and expose actin binding sites for myosin. Oxygen is needed in the process of cellular respiration to produce ATP, which is the energy source for muscle contraction to occur efficiently. Oxygen is also used to replenish ATP and remove waste products during muscle activity.


Factors that inhibit muscle contraction?

Muscle fatigue is the main factor that inhibits muscle contraction. Muscles need oxygen and energy to contract and muscle fatigue is the lack of oxygen in a muscle. The build up of lactic acid is a factor of muscle fatigue.


Which is most related to the role of myoglobin?

Myoglobin is primarily related to the storage and transport of oxygen in muscle tissues. It binds oxygen molecules more tightly than hemoglobin, allowing for efficient oxygen supply during muscle contraction. Additionally, myoglobin plays a crucial role in muscle metabolism, especially in endurance activities, by facilitating oxygen availability to support aerobic respiration.


What is the role of myosin APT ase in muscle contraction?

Myosin ATPase hydrolyze ATP into ADP+pi and yielding the energy required for muscle contraction.


What is the role of the triad in muscle contraction?

The triad in muscle contraction consists of a T-tubule and two terminal cisternae of the sarcoplasmic reticulum. It plays a critical role in muscle excitation-contraction coupling by allowing the action potential to be rapidly transmitted deep into the muscle fiber and triggering the release of calcium ions from the sarcoplasmic reticulum, which are essential for muscle contraction.


Is aids in muscle contration a function of protein?

Yes, the role of protein in muscle contraction is essential. Proteins, specifically actin and myosin, are the main components involved in the contraction of muscle fibers. These proteins interact in a process that generates force, resulting in muscle contraction.


Role of ionic calcium in muscle contraction?

Ionic calcium plays a crucial role in muscle contraction by binding to the protein troponin, which then allows for the movement of tropomyosin, enabling myosin heads to bind to actin filaments and form cross-bridges. This process ultimately leads to muscle fiber contraction.


What is the function role of t tubules?

Enhance cellular communication passage for nervous stimulation during muscle contraction.


When ATP attaches to a myosin head, what specific role does it play in the process of muscle contraction?

When ATP attaches to a myosin head during muscle contraction, it provides the energy needed for the myosin head to detach from actin, allowing the muscle to relax and reset for the next contraction.


What are the role of tropomyosin in skeletal muscle?

Tropomyosin is a regulatory protein in skeletal muscle that plays a critical role in muscle contraction. It binds to actin filaments and, in the absence of calcium ions, blocks the binding sites for myosin, preventing muscle contraction. When calcium ions are released during muscle activation, they bind to troponin, causing a conformational change that moves tropomyosin away from the binding sites, allowing myosin to interact with actin and initiate contraction. Thus, tropomyosin is essential for the regulation of muscle contraction and relaxation.


What processes does not use ATP muscle contraction active transport heat production diffusion of oxygen cytoplasmic?

Diffusion of cytoplasmic oxygen.


What role does the nervous system play in muscle contraction?

controls the muscles by the motor nurons.