16. The Endocrine System
Membrane Bound Receptors and Secondary Messengers
Multiple Choice
Multiple ChoiceSteroid hormones influence cellular activities by __________.
A
activating G proteins
B
binding to DNA and forming a gene-hormone complex
C
using calcium ions as a second messenger
D
activating cyclic AMP located outside the cell
E
activating cyclic AMP located inside the cell
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