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🔬 Biology  ·  Body Fluids and Circulation  ·  NEET

Which plasma protein is chiefly responsible for maintaining the osmotic (oncotic) pressure of blood?

Answer: Albumin.

  • A Globulin
  • B Fibrinogen
  • C Albumin
  • D Prothrombin

Correct answer: C. Albumin

Explanation: Albumin is the most abundant plasma protein and its concentration mainly maintains the colloidal osmotic pressure that retains water in the blood.

ECG: The Three Key WavesP wave(atrial depol.)QRS complex(ventricular depol.)T wave(ventricular repol.)QRS is the tallest spike - ventricles have far more muscle mass than the atria

A single ECG cycle: the P wave marks atrial depolarisation (contraction signal), the large QRS complex marks ventricular depolarisation, and the T wave marks ventricular repolarisation (recovery) before the next cycle begins.

Concept context

Blood, lymph, the heart, the cardiac cycle, blood pressure, and ECG. High NEET weightage.

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