What process requires ATP? Release the calcium from the terminal cisternae Binding of acetylcholine receptors  Transport of Calcium by voltage-gated calcium channels. Release of myosin head from actin filaments  Break down of acetylcholine by acetylcholinesterase

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: What intracellular protein of smooth muscle cells binds calcium and leads to contraction?…

A: Smooth muscles or involuntary muscles are types of muscles found in visceral organs. These…

Q: Actin is sometimes called the "thick" filament. It splits ATP and is responsible for the "power…

A: The movements of different body parts are attributed to the systemic contraction and relaxation 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: Suppose theres a drug that works towards blocking the entry of calcium from the extracellular fluid.…

A: The muscular system is one of the 11 major body organ systems of the body that aids in the…

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: The endplate potential decreases with distance because

A: The end plate potential is a potential that propagates to the neighbouring patch of muscle fibre…

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: 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: 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: In both smooth and skeletal muscle calcium must be actively transported out of the fluid surrounding…

A: As per our honor code, we are authorized to answer only one question at a moment. As you have not…

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: What happens as a result of the movement of tropomyosin? O Calcium is pumped into the sarcoplasmic…

A: The sliding filament theory is proposed to explain the mechanism lying in the contraction of…

Q: How does the AP in the motor neuron cause calcium release in the muscle fiber?

A: Action potential refers to the depolarisation of neuronal membrane which is required for the…

Q: If you introduced a chemical into a muscle fiber that blocked the voltage-gated calcium channels in…

A: The muscles are the soft tissues found in the animals. They are made up of special types of…

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: Which ATP-producing skeletal muscle metabolic pathway(s) require(s) oxygen?  Coupled reaction of…

A: Skeletal muscles are the muscles that are attached to bones and are in charge of body movement. They…

Q: True or False

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

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: Muscle contraction incorrect order Calcium allows myosin to bind to the actin. A message travels…

A: Note:  the question is attempted to write the correct order of muscle contraction. Muscle is the…

Q: When a(n) __________ moves along the sarcolemma, the membrane potential changes along the membrane…

A: The sarcolemma is the cell membrane of the muscle cells. When a muscle is stimulated by a neuron at…

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 would loss of negative feedback influence calcium release from the ER? Calcium channel would not…

A: Calcium is an intracellular ion whereas sodium and chlorine are extracellular ions. Cell organelles…

Q: Which statement or statements describe why depletion of ATP after death leads to rigor mortis?

A: Rigor mortis is the third phase of death. It is one of the unmistakable indications of death,…

Q: Which of the following statements is true?     Fast glycolytic fibers have a small diameter.…

A: Fast glycolytic Fibers:  Fast glycolytic fibers, also known as type IIb fibers, are a type of muscle…

Q: In the absence of _____, a contracted skeletal muscle will not relax but will develop rigor mortis…

A: Introduction After the death of an individual, several changes take place inside the dead body. The…

Q: Fill in the blank using information available from the diagram above: With every action potential…

A: Various steps during the contraction of a muscle fiber include- - Arrival of a nerve impulse to a…

Q: Which of the following is the plasma membrane of the myofiber?

A: The muscle fibers are multi-nucleated (exclusively in the case of skeletal muscle fibers),…

Q: What do the calcium ions that are released into the cytoplasm during contraction bind to?…

A: At the point when the muscle is stimulated during contraction, calcium particles are delivered from…

Q: In the process of muscle contraction, which of the following steps immediately comes after the…

A: Muscle contraction can be defined as the activation of tension-generating sites within muscle…

Q: Which of the following shortens in length during skeletal mucle contraction? select all that apply…

A: During muscle contraction there occurs contraction of sarcomeres, as thick and thin filaments slide…

Q: Put the steps of excitation-contraction in order: 1 Myosin "heads" pivot, cause [ Choose ] Calcium…

A: The mechanism of contraction of skeletal muscle was best explained through 'sliding filament…

Q: What contains troponin, is involuntary and intracellular calcium is necessary in muscle contraction?…

A: Calcium lets out from the sarcoplasmic reticulum through calcium particle channels when the membrane…

Q: What step DIRECTLY causes a sarcomere to shorten? cross- bridge formation  calcium transport into…

A: A sarcomere is the unit of muscle fiber responsible for contraction. Each sarcomere is composed of…

Q: ge-sensitive protein nels open and allow Acetylcholi syn elease from terminal of the SR. Ca2+ flows…

A: The skeletal muscle cells and neurons can get excited as they have a capacity to generate the action…

Q: What two types of muscle cells need both extracellular and introcellular calcium to contract?…

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

Q: Now in your own words, EXPLAIN (1) howa neural impulse is transferred to a muscle cell this is the…

A: Neural impulse or a nerve impulse refers to a signal that is transferred along the nerve fiber. It…

Q: Put these events that occur in skeletal muscle in the correct chronological sequence: 1. Opening of…

A: Muscle contraction is a major phenomenon associated with the functioning of the myofibril occurring…

Q: place in correct order 1. ACH binds to receptors

A: The muscle contraction is explained via tha Sliding Filament Theory of Huxley ans Huxley.  It talks…

Q: Which of the following happens within the sarcomere during muscle contraction?     The myosin…

A: Answer :- Option (A) is correct. - The myosin filaments "walk" along the actin filaments…

Q: What event occurs immediately before the movement of tropomyosin? Initiation of the power stroke…

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

Q: • Which division of the autonomic nervous system would likely be activated if a student learned that…

A: Muscle contraction is primarily governed by the sliding filament theory, which posits that muscles…