Chapter 3

Question 1

Microvilli; singular, microvillus

Answer 1

Extensions of the plasma membrane that serve primarily to increase a cell’s surface area. Best developed in cells specialized for absorption, such as the epithelial cells of the intestines and kidney tubules. Gives the cells 15-40x as much absorptive surface area as they would be if they were flat surfaces

Question 2

Deeper insight 3.1 role of calcium channel blockers in regulating HTN

Answer 2

?

Question 3

D.I. 3.2

Significance of chloride pumps for cystic fibrosis.

Answer 3

Primarily white kids
Defect in which cells make chloride pumps but fail to install them in the plasma membrane. Excess mucus pancreas cant secrete digestive enzymes / respiratory tract clogs/ lungs can collapse