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CBSE TEST PAPER-01

CLASS - XI BIOLOGY (Body fluids and circulation)

1. Which of the four chambers of the human heart has the thickest muscular

wall?

[1]

2. Where are RBCs formed from in an adult human? [1]

3. What is ECG technique? [1]

4. Distinguish between mitral and tricuspid value? [2]

5. Why does the fish heart pump only deoxygenated blood? [2]

6. How is heart failure different from heart attack? [2]

7. What is cardiac cycle? [3]

8. Differentiate between right ventricle and left ventricle. [3]

9. Describe the structure of human heart. [5]