Answer:
80 mm Hg
Explanation:
Immediately prior to ventricular systole, pressure in the aorta is about 80 mm Hg. This can be explained by the Frank-Starling Law which states that the stroke volume of the left ventricle will increase as the left ventricular volume increases due to the myocyte stretch which tends to cause a more forceful systolic contraction. This applies in the case that all of the other factors remain the same during that time.
Answer:
Answer D because they are also referred to as sex cells. Female gametes are called ova or egg cells and male gametes are called sperm.
Answer:
D. Acidification, increasing the pH of the ocean
Answer:
aspartate, lysine, arginine and asparagine residues
Explanation:
The activity of adenylyl cyclase (adenylate cyclase) is regulated by the conformation changes on the protein sub-units of the quartenary structure of the enzyme. These consist the amino acid groups that make the structure. For instance, the amino acid aspartate, lysine, arginine and asparagine all experience change of some sort. The residues stabilize the transition state of the enzyme. The proteins, while the enzyme carries the catalytic activity, mat become slightly mutated.
