NUR 2392 MDC II Exam 1 Study Concepts

NUR 2392 MDC II Exam 1 Study Concepts
1. What isthe role of adenosine triphosphate (ATP) in active transport?
Answer
Asthe primary energy currency of cells.In active transport, ATP powers transport proteins (such
as pumps and transporters), allowing them to move ions or molecules across across cell
membranes against their concentration gradient.
This process requires energy, which is supplied by the breakdown of ATP into adenosine
diphosphate (ADP) and inorganic phosphate (Pi).
2. What is the sodium-potassium pump?
Answer
Powered by ATP, the pump moves sodium and potassium ions in opposite directions, each
against its concentration gradient.
3. What is the role of renin-angiotensin-aldosterone system?
Answer
Hormone regu- lation of blood pressure and fluid volume.
4. What triggers the secretion of renin?
Answer
Decrease in blood pressure, blood volume, low sodium, and low blood oxygenation.
5. What is the function of angiotensin II?
Answer
Vasoconstriction and increase blood pressure