What Makes White Matter "White

question 33

Multiple Choice

What makes white matter "white"?

• A)Cell bodies
• B)Neurotransmitters
• C)Synapses
• D)Myelin

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Definitions:

Guard Cells

Specialized cells in the epidermis of leaves, stems and other organs that regulate gas exchange and water loss by opening and closing the stomatal pores.

Calcium

A chemical element crucial for building bones and teeth, blood clotting, and supporting muscle and nerve function.

Abscisic Acid

A plant hormone that regulates growth, inhibits seed germination, and mediates the plant's response to stress conditions like drought.

Hormone

An internal chemical that manages and influences the actions of particular cells or organs in the body.