For a Tissue or an Organ to Function as a Unit

question 52

Multiple Choice

For a tissue or an organ to function as a unit, ________.

• A) there must be a signal molecule recognized by all cells in the tissue or organ
• B) there must be cell-cell communication among the cells within a tissue or organ
• C) the tissue or organ must perform similar functions
• D) the tissue or organ must be composed of all of the same type of cells

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Definitions:

Hormones

Chemical messengers produced by glands in the endocrine system that regulate various bodily functions and processes.

Neurotransmitters

Chemical messengers that transmit signals across a chemical synapse, from one neuron (nerve cell) to another target neuron, muscle cell, or gland cell.

Hypothalamus

A region of the brain that regulates various bodily functions including hunger, thirst, sleep, and hormonal secretions.

Testosterone

A steroid hormone primarily produced in the male testes and female ovaries, associated with the development of secondary sexual characteristics and influencing behavior.