The Embryo of a Grass Seed Is Enclosed by Two

question 3

Multiple Choice

The embryo of a grass seed is enclosed by two protective sheaths, a(n) ________, which covers the young shoot, and a(n) ________, which covers the young root.

• A) cotyledon; radicle
• B) hypocotyl; epicotyl
• C) coleoptile; coleorhiza
• D) scutellum; coleoptile
• E) epicotyl; radicle

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Definitions:

Calmodulin

A calcium-binding messenger protein that plays a key role in cellular processes by activating enzymes, ion channels, and other proteins.

Signal Transduction

The process by which a cell converts one kind of signal or stimulus into another, involving a series of molecular changes leading to a cellular response.

Ras Proteins

A family of proteins involved in transmitting signals within cells, playing key roles in cell growth and development.

Unregulated Cell Division

Abnormal cell growth that can lead to tumors and cancer, characterized by the uncontrolled proliferation of cells.