VASCULAR
CAPILLARIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are soluble
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They are small
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They are large
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They are insoluble
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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: -Coagulation: fibrinogen plays a major role in blood clotting along with other procoagulants like thrombin and factor X.
Detailed explanation-3: -A decrease in the normal levels of plasma proteins results in a decrease of colloid osmotic pressure (which counterbalances the hydrostatic pressure) in the capillaries. This process causes loss of water from the blood to the surrounding tissues, resulting in edema.
Detailed explanation-4: -Blood also contains a protein called fibrinogen, which is produced by the liver and is soluble in blood plasma.