0
Actino myosin is the thin protein found in muscles.
Wiki User
∙ 15y ago
Wiki User
∙ 13y agoactin
Add your answer:
Earn +20 pts
What is the cause of the banding pattern visible in striated muscle?
The combination of thick and thin filaments create a banding pattern in striated muscle. This banding pattern is caused by muscle fibers being packed with organelles called myofibrils.
What are actin and myosin and are they organized iin a muscle?
Thick filaments are made of the protein myosin and thin filaments are made of the protein actin. Myosin and actin filaments are arranged to form and overlapping pattern which gives muscle tissue its striated appearance.
Are there more thick filaments than thin filaments in smooth muscle?
There more thin filaments than thick filaments in smooth muscle. The ratio is of the thin to thick filaments in the smooth muscle is approximately 15:1.
What muscle shapes the muscle?
thick and thin bands (lines) of filaments.
What muscle cell filaments come closer together when the sarcomere shortens?
thin filaments
Striations in striated muscle result from?
Striated muscle appears stripped due to the parallel alignment of many muscle fibers side to side with their sarcomeres lined up. The striations across each cell are caused by the overlap of the contractile proteins actin and myosin. Actin is the main protein of thin filaments and myosin is in the thick filaments. When actin and myosin are overlapped the darkest band appears( A band), when only actin is present a lighter band, is seen (I band).
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.
Which of the following become connected by myosin cross-bridges during muscle contraction A) thin filaments and thick filaments B) thin filaments and t-tubules C) thick filaments and titin filame?
Interactions between actin and myosin filaments of the sarcomere are responsible for muscle contractions. The I bands contain only thin (actin) filaments, whereas the A bands contain thick (myosin) filaments.
What are the thin filaments in a muscle made of?
actin, troponin, tropomyosinMyosin
What shape is the cardiac muscle?
thick and thin bands (lines) of filaments.
Do smooth muscle have thick and thin filament?
Both do have actin and myosin.Within each skeletal muscle fiber are hundreds of lengthwise subdivisions called myofibrils.Myofibrils are made up of bundles of the protein filaments (myofilaments) that are responsible for muscle contraction: thin filaments: made of the protein actin, andthick filaments: made of the protein myosin.These are visible using a microscope.The internal organization of actin and myosin in smooth muscle is different from that in the striated muscles.Smooth muscle cells: are long and slender, are spindle shaped, with a single, central nucleus, have scattered myosin fibers, with more heads per thick filament and have actin filaments attached to dense bodies.These can not be seen using a microscope and that is why they are also called smooth muscle fibers.
The thick filaments of muscle fibers are composed of what?
Myosin
