Utilizing knowledge from your learning and assigned readings, respond to the following questions: The maintenance of normal volume and composition of extracellular and intracellular fluids is vital to

Utilizing knowledge from your learning and assigned readings, respond to the following questions:

1. The maintenance of normal volume and composition of extracellular and intracellular fluids is vital to life. List and briefly describe the kinds of homeostasis involved.
2. Why does maintaining fluid balance in older people require a higher water intake than in a normal, healthy adult under age 40?
3. Why does potassium concentration rise in patients with acidosis? What is this called? What effects does it have?
4. Saline solution is used to reverse hypotonic hydration. Are body cell membranes permeable to saline? Explain your response.
5. Explain the renin-angiotensin mechanism.
6. Explain how ADH compensates for blood that contains too many solutes.