Body Fluids and Circulation — Practice Quiz
CBSE · Class 11 · Biology
Try a 4-question quiz on Body Fluids and Circulation for CBSE Class 11 Biology: tap an answer to check it and see why.
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Quick Quiz: Body Fluids and Circulation
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What percentage of blood is plasma?
Which blood cells are responsible for immune responses?
What is the average lifespan of Red Blood Cells?
Who are considered 'universal donors'?
Sample Questions
What is the normal heart rate for a healthy adult?
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70-75 beats per minute
The text indicates that the heart normally beats 70-75 times in a minute, with an average of 72 beats per minute.
Which part of the heart is called the 'pacemaker'?
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Sino-atrial Node
The Sino-atrial Node (SAN) generates the maximum number of action potentials and sets the heart's rhythm, making it the pacemaker.
What is the approximate cardiac output for a healthy individual?
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5 litres per minute
The chapter states that cardiac output averages 5000 mL or 5 litres in a healthy individual.
Which component of blood is involved in clotting?
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Platelets
Platelets can release substances involved in blood coagulation or clotting.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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