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NEET-UG Biology MCQ Practice
Series
Chapter 15: Body Fluids and Circulation
(50 Most Important MCQs with Answer Key & Explanations)
Prepared by: Study with Shelja (SWS)
For: NEET-UG 2026 Aspirants
, Chapter 15 – Body Fluids and Circulation (NEET MCQs – 50 Questions)
❖ Plasma and Blood Composition
1. Which plasma protein is involved in osmotic balance?
a) Globulin
b) Albumin
c) Fibrinogen
d) Prothrombin
2. Which plasma protein plays a major role in immunity?
a) Albumin
b) Fibrinogen
c) Globulin
d) Thrombin
3. Plasma without clotting factors is called:
a) Serum
b) Lymph
c) Tissue fluid
d) Interstitial fluid
4. Which mineral is abundant in plasma?
a) Zinc
b) Sodium
c) Iron
d) Iodine
5. Which vitamin is essential for blood clotting?
a) Vitamin A
b) Vitamin B12
c) Vitamin K
d) Vitamin D
❖ Formed Elements (RBC, WBC, Platelets)
6. Average RBC count in healthy adult male is:
a) 1–2 million/mm³
b) 3–4 million/mm³
c) 5–5.5 million/mm³
d) 8–10 million/mm³
7. Haemoglobin content in normal adult blood is:
a) 5–7 g/100 mL
b) 8–10 g/100 mL
c) 12–16 g/100 mL
d) 18–20 g/100 mL
NEET-UG Biology MCQ Practice
Series
Chapter 15: Body Fluids and Circulation
(50 Most Important MCQs with Answer Key & Explanations)
Prepared by: Study with Shelja (SWS)
For: NEET-UG 2026 Aspirants
, Chapter 15 – Body Fluids and Circulation (NEET MCQs – 50 Questions)
❖ Plasma and Blood Composition
1. Which plasma protein is involved in osmotic balance?
a) Globulin
b) Albumin
c) Fibrinogen
d) Prothrombin
2. Which plasma protein plays a major role in immunity?
a) Albumin
b) Fibrinogen
c) Globulin
d) Thrombin
3. Plasma without clotting factors is called:
a) Serum
b) Lymph
c) Tissue fluid
d) Interstitial fluid
4. Which mineral is abundant in plasma?
a) Zinc
b) Sodium
c) Iron
d) Iodine
5. Which vitamin is essential for blood clotting?
a) Vitamin A
b) Vitamin B12
c) Vitamin K
d) Vitamin D
❖ Formed Elements (RBC, WBC, Platelets)
6. Average RBC count in healthy adult male is:
a) 1–2 million/mm³
b) 3–4 million/mm³
c) 5–5.5 million/mm³
d) 8–10 million/mm³
7. Haemoglobin content in normal adult blood is:
a) 5–7 g/100 mL
b) 8–10 g/100 mL
c) 12–16 g/100 mL
d) 18–20 g/100 mL
