10th Class Chapter No.1
Biology MCQs Online Quiz
All MCQs Selected from Old Board Papers
Best MCQs for Board Examination
Total MCQs ( in this Quiz ) = 50
16. Which gas is produced during cellular respiration and taken out from the cells?
A. Nitrogen
B. Carbondioxide
C. Chlorine
D. Hydrogen Sulphide
Answer:
B. Carbondioxide
17. Gaseous exchange is defined as:
A. Taking in oxygen and giving out of carbon dioxide
B. Taking in carbon dioxide and giving out of oxygen
C. It refers only taking in oxygen gas
D. It refers only giving out carbon dioxide
Answer:
A. Taking in oxygen and giving out of carbon dioxide
18. The process in which animals take oxygen from environment and give out the air for getting rid of CO2 is called?
A. cellular respiration
B. metabolism
C. breathing
D. excretion
Answer:
C. breathing
19. Respiration involves:
A. biochemical processes
B. mechanical and bio-chemical process
C. physical process
D. chemical processes
Answer:
B. mechanical and bio-chemical process
20. Which of the following statement is correct about breathing?
A. chemical process of exchange of gases
B. bio-chemical process of exchange of gases
C. a process in which C-H bond in broken by reaction.
D. mechanical or physical processes of exchange of gases
Answer:
D. mechanical or physical processes of exchange of gases
