GENERAL HISTOLOGY

VASCULAR

CAPILLARIES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How do the large plasma proteins affect the water potential of the blood?
A
They decreasethe water potential
B
They increase the water potential
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -The plasma proteins suspended in blood cannot move across the semipermeable capillary cell membrane, and so they remain in the plasma. As a result, blood has a higher colloidal concentration and lower water concentration than tissue fluid. It therefore attracts water.

Detailed explanation-2: -Answer: As water potential decreases outside the cell the water inside blood also known as blood plasma diffuses out by osmosis. This leads to a concentrated blood and RBC decrease in size or shrink. Shrink in size will not allow the RBC to take up high amounts of oxygen.

Detailed explanation-3: -serum albumin, protein found in blood plasma that helps maintain the osmotic pressure between the blood vessels and tissues. Serum albumin accounts for 55 percent of the total protein in blood plasma.

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