Describe the function of antagonistic muscle pairs in an insect leg.
IB Biology
How do calcium ions and the proteins tropomyosin and troponin regulate muscle contractions?
How do calcium ions and the proteins tropomyosin and troponin regulate muscle contractions?
What roles do ATP hydrolysis and cross-bridge formation play in the sliding of muscle filaments?
What roles do ATP hydrolysis and cross-bridge formation play in the sliding of muscle filaments?
Explain the sliding filament mechanism of muscle contraction involving actin and myosin.
Explain the sliding filament mechanism of muscle contraction involving actin and myosin.
How are myofibrils organized into sarcomeres, and why are sarcomeres important for muscle contraction?
How are myofibrils organized into sarcomeres, and why are sarcomeres important for muscle contraction?
Why do muscle fibers contain multiple myofibrils, and what is their role in muscle function?
Why do muscle fibers contain multiple myofibrils, and what is their role in muscle function?
What unique structural features characterize skeletal muscle fibers?
What unique structural features characterize skeletal muscle fibers?
Why is it necessary for muscles to work in antagonistic pairs for body movement?
Why is it necessary for muscles to work in antagonistic pairs for body movement?
How do synovial joints restrict certain movements while allowing others?
How do synovial joints restrict certain movements while allowing others?
How do bones and exoskeletons provide anchorage for muscles, and in what ways do they act as levers?
How do bones and exoskeletons provide anchorage for muscles, and in what ways do they act as levers?