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Cell Communication

APBIO-VNYNIE

Cell-to-cell communication is an essential process that enables the transmission of information within biological systems.

Which of the following reflects the use of cell-to-cell contact in conjunction with paracrine (local) signaling to transmit message?

A

Excitation of a postsynaptic neuron followed by continued propagation of the signal via action potential.

B

The release of insulin by pancreatic beta cells due to elevated glucose levels followed by metabolism of glycogen by a liver cell.

C

B-cell presentation of antigen to T-helper cell followed by the stimulation of B-cell by cytokines.

D

Unfavorable conditions lead to elevated cAMP levels signal slime mold cells to aggregate leading to the formation of fruiting bodies.