Why can’t Myosin V motor proteins “walk” towards the negative end of the actin molecule? Why do most myosins move toward the positive end? Why do most myosins move toward the positive end instead of the negative end? Explain

Q: Some skeletal muscle fibers are “fast-twitch” fibers (white fibers), and others are “slow-twitch”…

A: Since you have asked multiple questions, we are eligible to answer only one question. Kindly repost…

Q: is this stement false? Intracellular concentrations in resting muscle are as follows:…

A: No. This statement is not false.

Q: 4. A transverse section across theT + a) I-band to one side of the Z-line would bisect only actin…

A: Since two questions are asked in this section. It can be possible to answer one question in the…

Q: high levels of Pi and no other metabolites, what would you observe

A: Muscle fatigue is a common complaint in clinical practice in humans. Muscle fatigue is known as an…

Q: Number the following statements in their proper sequence to describe the contraction mechanism in a…

A: Skeletal Muscle Contraction It is a series of steps explained by Sliding filament theory. The muscle…

Q: Explain the structure of dynein and kinesin and how their structures aid in organelle movement…

A: Dynein and kinesin are two of the cellular major motor proteins involved in the long range transport…

Q: How can myosin convert the chemical energy released by ATP hydrolysis into mechanical work?

A: The beginning of the muscle contraction includes the release of calcium ions from the sarcoplasmic…

Q: Which of the following is FALSE? Muscle cells contain myosin II, which is responsible for…

A: option c. Incorrect Myosin 1 is not only the single head domain protein but Myosin9 also a single…

Q: 3.4. About human skeletal muscle contraction, what are the correct statements? PHYSIOLOGY_basic…

A: Skeletal muscle contraction starts at the neuromuscular junction, which is the synapse between a…

Q: The sarcomeres in a muscle are the, cell membranes of skeletal muscle cells contractile units of the…

A: Skeletal muscles are one of the basic muscle types that aid in contraction and movement of the body…

Q: Skeletal muscle myosin heavy chain is a mechanoenzyme that requires ATP for its function. Other…

A: Knowledge required to answer this question: - The head domain of myosin enzyme does ATP hydrolysis…

Q: Would you expect to find motor proteins that move along intermediate filaments? Explain why or why…

A: Intermediate filaments are thicker than actin filaments and thinner than microtubules.

Q: Which of the following statements regarding kinesin are TRUE? (More than one answer is correct)…

A: Kinesin is a type of motor protein found in eukaryotic cells that use ATP to move along microtubule…

Q: Which of the following describes an F-actin microfilament?     A flexible, helical filament…

A: Option A  flexible, helical filament composed of two strands assembled from G-actin

Q: You’ve setup an in-vitro experiment to measure molecular motors and have an irreversibly binding ATP…

A: Molecular motors in biological systems are molecular machines that harness energy from diverse…

Q: What triggers the movement of the thin filament?

A: When muscle tissue are observed under the microscope, one can see that they contain a striped…

Q: Suppose myoglobin is prepared with Zn²+ in the place of Fe²+ in the porphyrin. Would you expect this…

A: Heme is a prosthetic group found in proteins like myoglobin. Heme has a protoporphyrin ring that is…