Which of the Following Statements Is False

question 18

Multiple Choice

Which of the following statements is false?

• A)A carrot is an example of a taproot.
• B)The layers of an onion are actually modified leaves.
• C)Stalks of celery are the petioles of the plant.
• D)White potatoes are modified plant roots.

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Definitions:

Sarcoplasmic Reticulum

A network of membrane-enclosed tubules in muscle cells that stores and releases calcium ions, critical for muscle contraction.

Transverse Tubules

These are extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells, facilitating the uniform contraction of the muscle.

Sarcolemma

The thin, plasma membrane that envelopes a muscle cell (fiber), playing a critical role in muscle contraction.

Z Lines

Positions within muscle fibers that mark the boundaries of sarcomeres, playing a critical role in muscle contraction by anchoring actin filaments.