Cell Signaling Quiz

Which of the following is a stage of cell communication?

• Signal propagation (transduction)

• Paracrine signaling

• Endocrine cells

• Intracellular mediators

What type of signaling involves neurotransmitters?

• Synaptic signal

• Endocrine signaling

• Autocrine signaling

• Direct signaling across gap junction

Which of the following is a form of signaling that involves hormones?

• Endocrine signaling

• Paracrine signaling

• Autocrine signaling

• Direct signaling across gap junction

What type of signaling molecule is water-soluble?

• Water-soluble ligands

• Small hydrophobic ligands

• Hormones

• Intracellular mediators

Which of the following is a type of cell-surface receptor?

• Extracellular domain

• Internal receptors

• Gene expression

• Cell growth

What is a method of intracellular signaling?

• Phosphorylation

• Gene expression

• Cell growth

• Extracellular domain

Which of the following is a second messenger in intracellular signaling?

• Calcium

• Extracellular domain

• Gene expression

• Internal receptors

What is one response to a signal in cellular processes?

• Gene expression

• Ion channel-linked receptors

• G-protein-linked receptors

• Extracellular domain

Which process is involved in cell death?

• Growth factors

• Apoptosis

• Phosphatases

• Biofilms

What is the role of phosphatases in cell signaling?

• Initiation of the signal cascade

• Termination of the signal cascade

• Cell death

• Quorum sensing