Which Incorrectly Describes What Happens During Skeletal Muscle Contraction

question 68

Multiple Choice

Which incorrectly describes what happens during skeletal muscle contraction?

• A)The width of the A band remains constant.
• B)The H zone disappears.
• C)The Z discs of a sarcomere move farther apart.
• D)The sarcomere narrows.
• E)The I bands narrow.

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Definitions:

Lewis Dot Structure

A diagram showing the bonding between atoms of a molecule and the lone pairs of electrons in the molecule.

Chlorine

A toxic, greenish-yellow gas with a strong odor, used as a disinfectant and in the manufacture of various chemicals.

Calcium

A chemical element with the symbol Ca and atomic number 20, an essential component of bones, teeth, and shells, and plays a crucial role in cell signalling.

Chlorine

A chemical element with symbol Cl and atomic number 17, known for its strong oxidizing properties and use as a disinfectant.