Q. A drop of each of the following, is placed separately on four slides. Which of them will not coagulate?
A) blood serum
B) sample from the thoracic duct of lymphatic system
C) whole blood from pulmonary vein
D) blood plasma
Explanation
[Solution from source] Serum is plasma from which fibrinogen and other clotting factors have been removed, so it cannot clot. Plasma, whole blood and lymph still contain fibrinogen and will coagulate. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.