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Published on: 08/06/2021
QB365 provides detailed and simple solution for every book back questions in class 11 Biology subject.It will helps to get more idea about question pattern in every book back questions with solution.
Download Tamil Nadu 11th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Biology Test1.
Which of the following best describes the process of gas exchange in the lungs?
Air moves in and out of the alveoli during breathing.
Carbon dioxide diffuses from deoxygenated blood in capillaries into the alveolar air.
Oxygen and carbon dioxide diffuse down their concentration gradients between blood and alveolar air.
Oxygen diffuses from alveolar air into the deoxygenated blood.
2.
Which of the following substances in tobacco smoke damage the gas exchange system?
carbon monoxide and carcinogens
carbon monoxide and nicotine
carcinogens and tar
nicotine and tar
3.
After a long deep breath, we do not respire for some seconds due to ______.
more CO2 in the blood
more O2 in the blood
less CO2 in the blood
less O2 in the blood
4.
Vital capacity is _____.
TV + IRV
TV + ERV
RV + ERV
TV + IRV + ERV
5.
CO2 is transported through blood to lungs as _____.
carbonic acid
oxyhaemoglobin
carbamino haemoglobin
carboxy haemoglobin
1.
(c)
Oxygen and carbon dioxide diffuse down their concentration gradients between blood and alveolar air.
2.
(c)
carcinogens and tar
3.
(b)
more O2 in the blood
4.
(d)
TV + IRV + ERV
5.
(c)
carbamino haemoglobin
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Tamilnadu Stateboard 11th Standard Subjects
Maths
Commerce
Economics
Biology
Business Maths and Statistics
Accountancy
Computer Science
Physics
Chemistry
Maths
Biology
Economics
Physics
Chemistry
History
Business Maths and Statistics
Computer Science
Accountancy
Computer Applications
History
Computer Technology
Commerce
Computer Applications
Computer Technology
Tamil
English
French
Tamilnadu Stateboard Standards
