Tropomyosin Strands Are Held in Position by Which of the Following

question 58

Multiple Choice

Tropomyosin strands are held in position by which of the following?

• A) actin molecules
• B) myosin molecules
• C) troponin molecules
• D) ATP molecules
• E) calcium ions

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Definitions:

Endoplasmic Reticulum

A network of membranous tubules within the cytoplasm of eukaryotic cells, involved in protein and lipid synthesis.

Rough

Characterized by an uneven or irregular surface; not smooth.

Smooth

Describes muscle tissue that is not striated, operates involuntarily, and is found in the walls of internal organs.

Golgi Apparatus

A cell organelle involved in the modification, sorting, and packaging of proteins and lipids for secretion or use within the cell.