Question 1
Which statement describes the function of a second messenger?
◦ Binds with membrane-bound receptors via a ligand
◦ Triggers a cascade of intracellular events
◦ Opens specific channels in the cell membrane
◦ Blocks a membrane-bound receptor signal
Question 2
Which statement is correct regarding cellular energy?
◦ Glycolysis is the building of sugar molecules.
◦ Oxidative cellular metabolism is a single reaction making adenosine triphosphate (ATP).
◦ Oxidative phosphorylation occurs in the mitochondria.
◦ Anaerobic glycolysis occurs in the presence of oxygen.