Quiz: Basic Concepts of Cellular Transport and Signaling: NUTR641: Nutritional Biochemistry I D01

Quiz: Basic Concepts of Cellular Transport and Signaling: NUTR641: Nutritional Biochemistry I (D01)

Which amino acid in the aquaporin channel hydrogen bonds with water to prevent the movement of protons?
Which of the following is (are) an advantage(s) of protein phosphorylation regarding biochemical signaling?
I. Phosphorylation is rapid and specific.
II. Phosphorylation is enzymatically reversible.
III. Phosphorylation can be amplified by cascade systems.
IV. Phosphorylation results in covalent modification of enzymes and proteins.
Which of the following occurs during the fusion of a synaptic vesicle and cell membrane?
The activity of protein kinase A is affected by which of the following?
I. activated adenylate cyclase
II. levels of cAMP
III. phosphodiesterases