Myosin ATPase activity rotates the myosin head to the strained, cocked position is associated with the actin, tropomyosin, and troponin on the thin filament causes detachment of myosin from actin terminates the powerstroke

Q: which decreases cytoplasmic calcium ion concentration The relaxation of skeletal muscle relies on…

A:

Q: Light less dense area of sarcomere that contains reminder of thin filaments but no thick filaments…

A: SARCOMERE It is the complicated unit of striated muscle tissue. It is the repeating unit between two…

Q: Match each protein with the appropraite myofilament

A: The sliding filament model, developed by Hugh Huxley and Jean Hanson and Andrew Huxley and Ralph…

Q: Muscle contraction can occur when: is it 1,2,3,4? A bands lengthen. myosin filaments shorten.…

A: Muscle is a specialized contractile tissue that is a distinguishing characteristic of animals.…

Q: In the process of muscle contraction, which of the following steps immediately precedes the sliding…

A: Muscle cells are specialized for contraction. Muscles allow for motions such as walking, and they…

Q: Thick filaments are part of the I band contain actin O contain myosin but thin filaments do/are not.…

A: In each microfibril, actin thin filaments and myosin thick filaments are organized into a linear…

Q: Which of the following is NOT true regarding actin? O It contains troponin and tropomyosin O It is a…

A: Among the given options, option (d) is the most appropriate. All the mentioned statements are true…

Q: In the sliding filament model of muscle contraction, I bands contain     sacrcomeres.     thin…

A: The cytoskeletal proteins including actin filament or microfilament, microtubules and intermediate…

Q: During sarcomere contraction, which of the following does NOT change length? A the distance between…

A: 1. troponin, tropomyosin and myosin After the release of calcium from the sarcoplasmic reticulum,…

Q: The power stroke in muscle contraction is the: Group of answer choices product of force and velocity…

A: The cells that make up muscle have the unique capacity to shorten or contract to cause movement of…

Q: What is associated with the formation of a cross-bridge in skeletal muscle? ADP release from myosin…

A: Any movement requires the contraction of skeletal muscles. Muscles contain actin and myosin…

Q: Which protein is responsible for blocking the myosin binding site to actin, while the muscle is at…

A: Myosin and actin slides onto each and plays a major role in muscle contraction..

Q: Myosin heads bend when attached to actin

A: Correct option is C  Myosin heads bend when attached to actin

Q: A skeletal muscle can often maintain a moderate level of active tension for long periods of time,…

A: A neuromuscular junction also called the myoneural junction is a chemical synapse between the motor…

Q: O People with high blood pressure O People with migraines O People with obstructive lung disease O…

A: 1. In the given question people with obstructive lung diseases should avoid the beta-blockers and in…

Q: Calcium storing membranous network in muscle fibers Transmit the action potential to the interior of…

A: The motor neuron's axon receives an action potential.On the axon, the action potential opens…

Q: Select the correct statements regarding myosin-mediated contraction in the sarcomere. Ca2+ is…

A: Actin and myosin work together to produce muscle contractions and, therefore, movement.

Q: Myosin filaments iterdigitate with actin filaments in order to bring about muscle contraction.…

A: The process of muscle contraction is necessary for the normal physical activities of the body. Force…

Q: the process of muscle contraction, which of the following steps immediately precedes the influx of…

A: Muscle contraction:-  Is the response  a muscle has to any kind of stimuli where the result is…

Q: The contraction of skeletal muscle fibers is prevented by regulatory proteins located on the: O thin…

A: Muscle contraction is referred to as the tightening of the muscles present in the body of an…

Q: distance runners. All of tl igher concentration of gl

A: Elite sprinters make use of type II fibers more than other muscle fibers and are fast glycolytic…

Q: What is the function of calcium in muscle contractions? to bind to troponin and change its…

A: Skeletal muscles are a special type of muscles made up of contractile tissue. They are a type of…

Q: Identify the structures within this sarcomere. A band M line Z line Myosin H zone I band Actin H |||

A: MUSCLE CONTRACTION-When you perform an activity, your muscles are tightened, lengthened, or…

Q: Put the following statments describing the skeletal muscle contraction pathway in the correct order:…

A: The signal for the muscle contraction is sent to the motor neuron from the brain or the spinal cord.…

Q: List five proteins of the myofilaments and describe their physical arrangement.

A: The myofilaments are the proteins that make up the contractile elements of muscle cells. There are…

Q: When discussing the hierarchy of skeletal muscle organization, the is the Highest level of…

A: Humans consists of various systems one such system is the muscular system that consists of muscle in…

Q: Sarcomeres that are very long at rest generate low amounts of tension because there is very little…

A: Sarcomere is defined a complex striated tissues that acts as the basic contractile unit of the…

Q: Match the statement on the left with the best response on the right. Breaking the high energy bond…

A: Introduction :  A synapse is a small space that represents the junction between two axon terminals…

Q: All the following are necessary for a skeletal muscle cell to full relax, except one. Which answer…

A: Muscle is a delicate tissue found in many creatures. Muscle cells contain protein fibers of actin…

Q: Why does a skeletal muscle cell generate the same amount of tension with each single stimulus? O…

A: Neural control initiates the formation of actin and myosin cross bridges, leading to the sarcomere…

Q: Tetanus is a phenomenon where muscle fibers are continuously contracted. What best explains this?…

A: Tetanus is a sustained muscle contraction evoked when the motor nerve that innervates a skeletal…

Q: What is the best description of a contraction of the sarcomere Myosin pushes the actin fibers away…

A: Muscles are the tissue that are responsible for providing the movement to the body. It also…

Q: Each of the pairs of phrases below describe steps during skeletal muscie contraction. The 2nd phrase…

A: Muscle tissue is a type of tissue which contain actin , Troponin and myosin proteins so as to allow…

Q: Humming birds and rattlesnakes can contract and relax skeletal muscle very quickly, i.e. in 10-20…

A: In all vertebrates three major types of muscles are present. These are- cardiac muscles, smooth…

Q: How does the cross-bridge result in thin filaments sliding over thick for contraction? Use key…

A: As Cross-bridge is formed myosin head is locked tightly on to an actin filament. Binding of ATP to…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.