Question 1
Which is NOT a method of hormone action?
◦ control of enzymatic reaction rates
◦ control of electrical signaling pathways
◦ control of gene expression and protein synthesis
◦ control of ion or molecule transport across cell membranes
◦ All are methods of hormone action.
Question 2
When a catecholamine or peptide hormone binds to receptors on the surface of a cell,
◦ the cell becomes inactive.
◦ the hormone is transported to the nucleus where it alters the activity of DNA.
◦ the cell membrane becomes less permeable.
◦ second messengers are activated.
◦ None of the answers are correct.
Adult stem cells offer hope for cell therapy to treat diseases in the future
A cell.
Surface Features on Europa
Hormone Activity