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Course: AP®︎/College Biology > Unit 4

Lesson 1: Cell communication

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Cell communication

Google Classroom

Image credit: Adapted from CNX OpenStax [CC BY 4.0], via Wikimedia Commons

Which of the following best describes the cell communication occurring in the figure above?

(Choice A)
A signal-emitting cell communicates with a nearby cell by releasing local regulators.
(Choice B)
A signal-emitting cell communicates with a far-away cell by releasing local regulators.
(Choice C)
A signal-emitting cell communicates with a far-away cell by releasing long-distance signaling molecules.
(Choice D)
A signal-emitting cell communicates with a nearby cell through direct cell-to-cell contact.

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