Examlex
What mass of sodium acetate should be dissolved in 250.0 mL of 0.30 M aqueous acetic acid to form a buffer of pH 5.0? (Ka for acetic acid is 1.8 × 10-5)
Sarcolemma
The specialized cell membrane that surrounds muscle cells, playing a key role in muscle contraction and signal transmission.
Endomysium
A thin layer of connective tissue that individually encases each muscle fiber.
Perimysium
The connective tissue that surrounds bundles of muscle fibers, providing structural support and protection.
Tropomyosin
A protein that, along with troponin, regulates the contraction of muscles by covering or uncovering the binding sites on actin filaments.
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