Class 11 Biology · Chapter 11 · Test 1
Blood and Heart Structure
40 MCQs. This part covers the composition of blood, the location of the heart and the pericardium. It also covers the wall layers, chambers, valves and the flow of blood through the heart, along with the related exercise MCQs.
40 questions · 30 min · 40 marks
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Sample questions
The first 5 of 40. Try each one, then tap to see the answer.
Question 1
Humans have how many systems for the transport of materials?
- AOne
- BTwo
- CThree
- DFour
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Answer: B
Humans have the blood circulatory system and the lymphatic system.
Question 2
The closed blood circulatory system of humans consists of:
- ABlood, heart and blood vessels
- BLymph, nodes and spleen
- CHeart and lungs only
- DArteries and veins only
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Answer: A
The closed blood circulatory system consists of blood heart and blood vessels.
Question 3
Blood is composed of how many main components?
- ATwo
- BThree
- CFour
- DFive
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Answer: A
Blood is composed of plasma and cells or cell-like bodies.
Question 4
In a healthy person plasma constitutes about ____ by volume of blood.
- A55%
- B45%
- C25%
- D75%
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Answer: A
Plasma constitutes about 55% and cells about 45% of blood volume.
Question 5
Cells or cell-like bodies constitute about ____ by volume of blood.
- A45%
- B55%
- C10%
- D90%
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Answer: A
Cells and cell-like bodies make up about 45% by volume.
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