Which of These Statements Is Correct Regarding Muscle Contraction

When a muscle contracts the lighter I-band becomes wider. When a muscle contracts the sarcomere remains the same size.

Solved Rank These Statements About Muscle Contraction In Chegg Com

A A muscle fiber contracts in an all-or-none fashion.

. The mitochondria act as a store of Ca2 for the contractile process. Calcium binds troponin specifically on a calcium binding site which then leads to tropomyosin movement O b. Contraction of cardiac muscle results from lengthening of sarcomeres.

Muscle contraction generates force by pulling on the structures it is. ATP and muscle contraction -. B There is a slight latent period that occurs between when the stimulus arrives at the muscle and when the muscle contracts.

-Myosin has another binding site for ATP at which enzymatic activity hydrolyzes ATP to ADP releasing an inorganic. Cranial bone sutures are classified as fibrous joints Selected Answer. The thick and thin filaments remains in their original length and the sarcomere shortens only.

When a muscle contracts the A-band shortens. A rise in intracellular Ca2allows actin to interact with myosin. Ca2 entry across the plasma membrane is important in sustaining the contraction of skeletal muscle.

When a muscle contracts the A-band shortens. All of these statements are TRUE. Wap to read the given statement and then select the correct statement the true statement regarding all-or-none principle now here is talking about the contraction of muscles if you look at the statement that have been given to us we are going to discuss a little about the contractile activity of the skeletal muscle or the striated muscle tissue in our body now we know that.

The crossbridges bind to the actin and shorten the sarcomeres. C Muscles will add motor units to a contraction increasing the overall force of contraction. Contraction only occurs following summation of action potentials from many motor neurons.

When a muscle contracts the H-zone becomes narrower shortens. When a muscle contracts the lighter I-band becomes wider. Which of these statements is correct regarding muscle contraction.

Troponin is not needed to strengthen the contracting muscle cell. Human muscles contain a genetically determined mixture of both slow and fast fiber types. Which of the following statements is true regarding muscle contraction.

-The motion of muscle shortening occurs as myosin heads bind to actin and pull the actin inwards. O When a muscle contracts the sarcomere remains the same size. When a muscle contracts the H-zone becomes narrower shortens.

In skeletal muscle calcium initiates contraction by binding to troponin while in smooth muscle calcium initiates contraction by binding to calmodulin. When a muscle contracts the sarcomere remains the same size. Calcium removal from the cytoplasm causes contraction.

Thus the correct answer is option C. Calcium entry into the cytoplasm causes relaxation. When a muscle contracts the lighter I-band becomes wider.

Muscle contraction continues for long periods after nervous stimulation ceases. See the answer See the answer done loading. Question 15 Which statement is true of muscular tissue andor muscle contraction.

B Unlike striated muscle contraction of smooth muscle cells occurs when Ca 2 levels fall. In skeletal muscle calcium ions bind to a regulatory protein on thin filaments. In skeletal muscle calcium initiates contraction by binding to troponin while in smooth muscle calcium initiates contraction by binding directly to myosin.

All of the choices are true. Correct option is A When the muscle contracts according to sliding theory The distance between two Z lines is reduced. Contraction does not always require the occurrence of an action potential.

When a muscle contracts the H-zone becomes narrower shortens. Slow-twitch motor units have larger nerves than fast-twitch motor units. The contraction times are influenced by their number of motor units.

-This action requires energy which is provided by ATP. The connective tissue present in muscle is epimysium. Thick filaments shorten when.

Which of the following statements is FALSE regarding skeletal muscle contraction. Which of the following statements about smooth muscle contraction is correct. In smooth muscle calcium ions bind to a regulatory protein on thick filaments.

Contracting muscle fibers do not always shorten. Slow oxidative muscle fibers contain myoglobin giving these fibers a reddish color. Each type influences how muscles respond to physical activity and training.

Slow oxidative muscle fibers contain myoglobin giving these fibers a reddish color Selected Answer. The contraction of the muscle fiber do not means that the muscle fiber gets shorten. During contraction the thick filaments are pulled towards the center of the sarcomere.

Which of the following statements is true regarding muscle contraction. Which of the following statements is true regarding muscle contraction. A A Ca 2 -calmodulin complex activates the phosphatase that causes contraction of smooth muscle.

The action potential of a motor nerve is transmitted to a muscle fibre through the neuromuscular junction which is a fusion of nerve and muscle cell. The sliding filament theory explains how muscles contract. Which of the following statements regarding muscle contractions is NOT true.

Which of the following statements regarding contraction in skeletal and smooth muscle is TRUE. When a muscle contracts the A-band shortens. Muscle fiber contraction is all or none.

The H zone that contains only thick filaments also gets shorten in length. - Myosin binds to actin at a binding site on the globular actin protein. The contraction of the skeletal muscle fiber helps in the movement of the body.

Which statement is true regarding muscle contraction.

Solved Question 24 Which Of These Statements Correctly Chegg Com

Solved Which Of These Statements Is True Of Smooth Muscle Chegg Com

When A Skeletal Muscles Shortens During Contraction Which Of These Statements Is False