Peroxisomes

question 77

Multiple Choice

Peroxisomes

• A) synthesize proteins for use outside the cell.
• B) are the toxic waste removal system of the cell.
• C) contain some of the code necessary for their own duplication.
• D) are involved in the production of ATP.

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Definitions:

Z Disk

A structure within striated muscle fibers that anchors the actin filaments, serving as the boundary between sarcomeres.

Sarcomere

The fundamental unit of muscle fiber responsible for muscle contraction, defined by the area between two Z lines in striated muscle cells.

Actin Myofilament

A protein filament that, along with myosin, plays a role in muscle contraction and cell movement.

Z Disk

A structure within the sarcomere of muscle fibers that serves as the attachment site for actin filaments, marking the boundary between sarcomeres.