Rigor Mortis Is Caused By

question 41

Multiple Choice

Rigor mortis is caused by:

• A) buildup of lactic acid.
• B) lack of Ca²⁺.
• C) depletion of glycogen.
• D) lack of ATP.
• E) deficient acetylcholine receptors.

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Definitions:

Radial Growth

The pattern of growth that expands outward in all directions, commonly observed in fungi, certain plants, and some animals like jellyfish.

Cork Cambium

A lateral meristem that produces cork cells and cork parenchyma; cork cambium and the tissues it produces make up the periderm (outer bark) of a woody plant. Compare with vascular cambium.

Secondary Xylem

The part of a plant that contributes to wood formation, resulting from the division of cambium cells and providing structural support and water transport.

Cork Cells

Specialized cells in the bark of a plant that are dead at maturity and serve to protect and waterproof the plant.