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1
, Which of the following signaling types is used to transmit ligands to their target cells
over long distances, using the circulatory system as a transport medium?
1. Autocrine signaling
2. Endocrine signaling
3. Direct cell-to-cell signaling
4. Paracrine signaling
5. Synaptic signaling ANSWER >> Endocrine signaling.
Explain why a steroid hormone would require a carrier protein to transport it through the
bloodstream. ANSWER >> Steroid hormones are hydrophobic. They would require a
carrier protein to carry it through the blood because it is considered hydrophilic.
Each of the following is true regarding cellular receptors except:
2