What primarily causes human blood to have a viscous consistency?

Biology Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Biology Mcqsbiology-mcqs
Published
4 Jul 2020
Last updated
28 May 2026

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Explanation

Blood viscosity is mainly influenced by the proteins dissolved in it, such as albumin and fibrinogen, which increase its thickness. While cells and other components contribute, proteins play the key role in determining blood's viscous nature.

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