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Question 1

What is direct communication in cells?

Answer 1

Direct communication occurs when two cells are close together, allowing for direct contact.

Question 2

What is paracrine communication?

Answer 2

Paracrine communication involves local regulators that diffuse through extracellular fluid to affect adjacent cells.

Question 3

What is endocrine communication?

Answer 3

Endocrine communication involves hormones traveling through the bloodstream to target cells in other tissues and organs.

Question 4

What are chemical mediators in cell communication?

Answer 4

Chemical mediators are signaling molecules that facilitate communication between cells.

Question 5

What is synaptic communication?

Answer 5

Synaptic communication occurs across the synaptic cleft using neurotransmitters.

Question 6

What is the effect of paracrine signaling?

Answer 6

The effect is usually limited to adjacent cells of the same type and is localized.

Question 7

What is the effect of endocrine signaling?

Answer 7

Endocrine signaling targets cells in other tissues and organs, requiring appropriate receptors.

Question 8

What is the role of target cells in signaling?

Answer 8

Target cells must have receptors to bind with the signaling molecules.