What Energy Is Released (In MeV) During a Reaction in Which

question 4

Multiple Choice

What energy is released (in MeV) during a reaction in which 1.67 × 10^-25 kg of material is converted to energy?

• A)5.0 × 10^-14 MeV
• B)4.1 × 10^-7 MeV
• C)6.7 × 10⁷ MeV
• D)3.1 × 10^-4 MeV
• E)9.4 × 10⁴ MeV

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Definitions:

Troponin

A protein complex involved in the regulation of skeletal and cardiac muscle contraction, which binds to calcium ions causing a change that allows muscle contraction.

ATPase Activity

The enzymatic activity involved in hydrolyzing ATP (adenosine triphosphate) to release energy.

Thin Myofilament

A component of the muscle fiber responsible for muscle contraction, composed primarily of the protein actin.

Globular (G) Actin

A monomeric form of actin protein that can polymerize to form filamentous (F) actin, part of the cytoskeleton in cells.