Question

For each of the following sentences, fill in the blanks with the best word or phrase selected from the list below. Not all words or phrases will be used; each word or phrase should be used only once. Cells can signal to each other in various ways. A signal that must be relayed to the entire body is most efficiently sent by __________________ cells, which produce hormones that are carried throughout the body through the bloodstream. On the other hand, __________________ methods of cell signaling do not require the release of a secreted molecule and are used for very localized signaling events. During __________________ signaling, the signal remains in the neighborhood of the secreting cell and thus acts as a local mediator on nearby cells. Finally, __________________ signaling involves the conversion of electrical impulses into a chemical signal. Cells receive signals through a __________________, which can be an integral membrane protein or can reside inside the cell.

a) amplification
b) contact-dependent
c) endocrine
d) G protein
e) K+ channel
f) neuronal
g) phosphorylation
h) receptor
i) target
j) epithelial
k) paracrine

Answer 1

Cells can signal to each other through different methods such as endocrine, paracrine, and neuronal signaling. Endocrine cells send signals that reach the entire body through the bloodstream, while paracrine signaling acts locally on nearby cells. Neuronal signaling involves the conversion of electrical impulses into a chemical signal. Cells receive signals through receptors.

Step-by-step explanation:

Cells can signal to each other in various ways. A signal that must be relayed to the entire body is most efficiently sent by endocrine cells, which produce hormones that are carried throughout the body through the bloodstream. On the other hand, paracrine methods of cell signaling do not require the release of a secreted molecule and are used for very localized signaling events. During paracrine signaling, the signal remains in the neighborhood of the secreting cell and thus acts as a local mediator on nearby cells. Finally, neuronal signaling involves the conversion of electrical impulses into a chemical signal. Cells receive signals through a receptor, which can be an integral membrane protein or can reside inside the cell.