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thick filaments and thin filaments

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What makes up myofibrils?

Thin filaments consist primarily of the protein actin, coiled with nebulin filaments. Thick filaments consist primarily of the protein myosin, held in place by tit in filaments.


The thick filaments of muscle fibers are composed of what?

Myosin


What are the 3 types of filaments within a muscle and what protein makes up each filament?

The three types of filaments within a muscle are thin filaments, thick filaments, and elastic filaments. Thin filaments are primarily composed of the protein actin, while thick filaments are made up of myosin. Elastic filaments, which help maintain the structure and elasticity of the muscle, are primarily composed of the protein titin. These filaments work together to facilitate muscle contraction and relaxation.


Fibers of the cytoskeleton are composed of primarily?

Fibers of the cytoskeleton are primarily composed of three types: microfilaments (actin filaments), intermediate filaments, and microtubules. Microfilaments are primarily made of actin, intermediate filaments consist of various proteins like keratins and lamins, while microtubules are made of tubulin protein subunits.


What is a myofliament?

The filaments of myofibrils constructed from proteins, myofilaments, consist of 2 types, thick and thin. Thin filaments consist primarily of the protein actin; thick filaments consist primarily of the protein myosin. The protein complex composed of actin and myosin is sometimes referred to as "actomyosin." In striated muscle, such as skeletal and cardiac muscle, the actin and myosin filaments each have a specific and constant length on the order of a few micrometers, far less than the length of the elongated muscle cell (a few millimeters in the case of human skeletal muscle cells). The filaments are organized into repeated subunits along the length of the myofibril. These subunits are called sarcomeres.


What protein makes up the thick filaments of myofibrils?

Myosin makes up the THICK filaments, and actin makes up the thin filaments of myofibrils.


What are the types of proteins contained in myofibrils?

In the thin filaments of miofibrils, actin is the primary protein. In the thick filaments, myosin is the primary protein.Troponin, Tropomyosin, myosin.


What are the 3 different types of myofilaments?

The three different types of myofilaments are thick filaments, thin filaments, and elastic filaments. Thick filaments are composed of myosin protein, thin filaments are primarily made of actin protein, and elastic filaments (also known as titin) provide elasticity and stability to the sarcomere.


What are thick myofilaments of muscles called?

Actin. Myosin are the thin ones.... it's actually the reverseThe thin filaments are composed primarily by the protein Actin.The thick filaments are composed primarily of the protein Myosin.


Thick protein filaments within the A-bands?

The thick protein filaments within the A-bands of sarcomeres are composed primarily of myosin. Myosin filaments contain motor proteins that interact with actin filaments to generate the force needed for muscle contraction. The A-band is the region where myosin filaments are predominantly found, giving it a darker appearance under a microscope.


What is composed of myosin protein?

Myosin protein is primarily found in muscle cells, where it is a key component of the thick filaments that form part of the contractile machinery responsible for muscle movement. Myosin interacts with actin, another protein, to create the sliding motion that leads to muscle contraction.


What are the thick protein filaments in the cell made of?

The thick protein filaments in a cell are primarily made of a protein called myosin. Myosin filaments are involved in muscle contraction and various other cellular processes such as cell motility and cytokinesis.