QUESTION 4 A. Write about the following: i. Cell membranes are composed primarily of phospholipids and proteins. ii. The...

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Medical Sciences

QUESTION 4
A. Write about the following:
i. Cell membranes are composed primarily of phospholipids andproteins.
ii. The refractory period in action potential
iii. The role of body water
B. Explain the following causes of Edema
iv. Malnutrition and Capillary wall damage
v. Fluid accumulation in the lungs
vi. Left ventricular heart failure and Congestive heartfailure
vii. Glomerulonephritis and Nephrotic syndrome
(All 7 points x 5= 35Marks)

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3.9 Ratings (539 Votes)

1 Cell membrane is composed of phospholipids and protein The head end of the phospholipids is positively charged and quite soluble in water that is polar or hydrophilic The tail end consists of two chains of fatty acids or steroid radical of cholesterol It is quite insoluble in water therefore it is nonpolar or hydrophobic This lipid molecules are arranged as bilayer in such a way that their nonpolar hydrophobic tail ends are directed towards the See Answer

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