What blood is made of — NEET & JEE Questions

Question 1 · difficulty L1 · recall

The formed element chiefly responsible for oxygen transport:

• A. monocyte
• B. platelet
• C. neutrophil
• D. erythrocyte

Question 2 · difficulty L1 · recall

The formed element primarily involved in blood clotting:

• A. eosinophil
• B. lymphocyte
• C. platelet
• D. erythrocyte

Question 3 · difficulty L1 · recall

The liquid matrix of blood:

• A. platelet
• B. fibrin
• C. lymphocyte
• D. plasma

Question 4 · difficulty L1 · recall

Which component normally forms the largest fraction of human blood by volume?

• A. Plasma
• B. Erythrocytes
• C. Leucocytes
• D. Platelets

Question 5 · difficulty L2 · understanding

Which plasma protein contributes most directly to maintaining the osmotic balance of blood?

• A. Fibrinogen
• B. Albumin
• C. Haemoglobin
• D. Thrombin

Question 6 · difficulty L2 · understanding

Why are mature human erythrocytes especially efficient at transporting oxygen?

• A. They are the only blood cells able to leave capillaries
• B. They contain mitochondria that continuously produce oxygen
• C. Their biconcave enucleate form allows abundant haemoglobin
• D. They synthesize antibodies while circulating

Question 7 · difficulty L2 · understanding

Blood consists of a fluid matrix called plasma and

• A. formed elements
• B. only erythrocytes
• C. only proteins
• D. lymphatic vessels

Question 8 · difficulty L3 · application

A blood smear shows a leucocyte with a multilobed nucleus that actively engulfs bacteria. Which cell type is the best match?

• A. Lymphocyte
• B. Eosinophil
• C. Basophil
• D. Neutrophil

Question 9 · difficulty L3 · application

A patient sample shows a marked rise in a granulocyte commonly associated with allergic reactions and defence against parasites. Which cell is most likely increased?

• A. Eosinophil
• B. Neutrophil
• C. Monocyte
• D. Erythrocyte

Question 10 · difficulty L3 · understanding

The WBC count of a person's blood sample is $8000 / \mathrm{cu} \mathrm{mm}$. How many eosinophils and lymphocytes would be in the same blood sample approximately?

• A. $300-500 / \mathrm{cu} \mathrm{mm}$ and $1200-1500 / \mathrm{cu} \mathrm{mm}$ respectively
• B. $160-240 / \mathrm{cu} \mathrm{mm}$ and $1600-2000 / \mathrm{cu} \mathrm{mm}$ respectively
• C. $300-500 / \mathrm{cu} \mathrm{mm}$ and $500-700 / \mathrm{cu} \mathrm{mm}$ respectively
• D. $100-120 / \mathrm{cu} \mathrm{mm}$ and $160-200 / \mathrm{cu} \mathrm{mm}$ respectively