For a skeletal muscle to remain rigidly contracted, it needs a continual supply of ATP. Yet, when a skeletal muscle runs out of ATP (in a corpse), it becomes rigid. How can you explain this seeming paradox? Explain how skeletal muscle may remain relaxed even if ATP levels are high.

Q: During one cross-bridging cycle in striated muscle one ATP molecule is hydrolyzed. Explain the two…

A: In striated muscles, during a muscle contraction, tropomyosin has to change its conformation to…

Q: What are two roles of ATP during muscle contraction?

A: Muscle contraction is either increase in muscle tension or a decrease in the muscle length. Muscle…

Q: n order to study and understand muscle diseases, one needs to have a good understanding of normal…

A: Muscles contract in a repeated pattern of binding and releasing between the two thin and thick…

Q: Compare the composition of flight muscles with a powerful locomotive muscle in terms of…

A: Flight muscles are a type of muscle which is found in birds or insects. This muscle helps birds or…

Q: The cross bridges of the sarcomere in skeletal muscle are made up of                 A. myelin.…

A: Introduction:-  Muscles are delicate tissue present in most animals . These contain filaments like…

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: Discuss the specific role of ATP in muscle contraction.

A: ATP is Adenosine triphosphate which is also referred as the cellular energy currency.

Q: What are three functions of ATP in muscle contraction?

A: The muscle tissue present in the human body is primarily responsible for the movement in the body.…

Q: Skeletal muscle cell(key terms: striated, contracting proteins, contractions, nucleus location) This…

A: Skeletal muscle cells are the cells that help us move and are compartmentalized in the body into…

Q: Explain why skeletal muscle cells contain many mitochondria.

A: Mitochondria is a cell organelle found in the cytoplasm eukaryotic cell. It is a double…

Q: If you add calcium to the bath around the earthworm smooth muscle, what would you expect will happen…

A: Introduction  Earthworms have smooth muscle in their body walls which helps them in movement and…

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: Skeletal muscle will be released in its contracted (rigor) state when: Group of answer choices ATP…

A: Please note that the correct statement for the question should be "Skeletal muscle will be released…

Q: Recently, it has been observed that several muscle diseases and disorders are linked to problems…

A: Some individuals with inherited genetic mutations are susceptible to malignant hyperthermia. Certain…

Q: Suppose a person had an unusual mutation in the troponin protein of his skeletal muscles, such that…

A: The muscular system is a system of muscles where muscles are connected to bones and also to envelope…

Q: When ATP levels return to normal after intense muscle activity, is creatine predominantly…

A: During intense muscle activity excess and immediate amount of ATP is required, in this case the…

Q: muscle differs from skeletal muscle in: (more than one answer may be correct) Question 6 options:…

A: Smooth muscle are involuntary muscles where as striated muscles are voluntary muscles. Involuntary…

Q: Why do muscle cells use creatine phosphate insteadof glycolysis to supply ATP for the first few…

A: ATP or adenosine triphosphate provides the energy for muscle contraction.For ATP regeneration, three…

Q: Muscle contraction involves a protein conformational change called the power stroke. Where…

A: Each myosin motor protein possesses ATPase activity and functions in a cyclical manner that couples…

Q: Myoglobin provides muscle fibers with a means of supplying ATP anaerobically. True or False

A: The globin is a globular protein that contains heme group and it plays a vital role in binding and…

Q: If the blood flow to a skeletal muscle were markedly decreased, which types of motor units would…

A: Introduction: Small arteries and arterioles form the microcirculation unit and are innervated…

Q: In cardiac muscle, which ion serves both to depolarize the cells and as the essential link to…

A: correct amswer = b-Ca+ The shape of voltage-gated calcium channels changes as a muscle cell is…

Q: Why is smooth muscle shortening much slower than in skeletal muscle?

A: Muscles are soft tissues found in the body, composed of actin and myosin proteins. These are…

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: hypoventilation builds up carbon dioxide in the body which causes respiratory acidosis. This would…

A: “Hypoventilation” is a state that occurs when there is inadequate ventilation. The amount of oxygen…

Q: Describe the two mechanisms by which muscle glycogen is broken down to glucose (glycogenolysis) for…

A: The question is to discuss two mechanisms by which muscle glycogen is broken down to glucose…

Q: During muscle contraction, some energy is supplied from creatine phosphate. Which of the following…

A: Muscle contraction occurs when tension-generating sites within muscle cells are activated.

Q: Why is adenosine triphosphate (ATP) used for muscle contraction?

A: Muscle contraction is a process in which muscle shortening occurs due to the movement of the actin…

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: In a long period of intense exercise, why does muscle generate ATP anaerobically at first and then…

A: Muscle is one of the four primary body tissues which is mainly responsible for the movement in the…