10th class Biology chapter 10 online mcq test with answers for matric part 2 Biology chapter 10(Gaseous Exchange)

Biology 10th Class English Medium Chapter 10 Online Test

Sr. #	Questions	Answers Choice
1	The respiratory centre is present in :	Lungs Brain Nose Muscles
2	What percentage of oxygen inhaled form air during breathing?	21% 22% 23% 24%
3	Rate of breathing depends upon concentration of which gas:	Oxygen Carbon dioxide Nitrogen Hydrogen
4	The percentage of oxygen from air which we inspired is:	15 % 21% 25% 28%
5	In normal condition human respiration rate is:	12 to 15 per minute 15 to 12 per minute 10 to 12 per minute 16 to 20 per minute
6	Percentage of CO₂ in exhaled are during breathing is:	16% 4% 79% 0.04%
7	What happens during Exhalation?	Ribs muscles relax Diaphragm become dome shaped Pressure on lungs increased All of these
8	Which bring deoxygenated blood form heart into lungs?	Pulmonary veins Pulmonary Artery Aorta Wind Pipe
9	The number of lobes in right lung is:	1 2 3 4
10	The muscles of ribs are called;	Smooth muscles Cardiac muscles Intercoastal muscles Coastal muscles
11	A thick muscular layer beneath lungs is called:	Kidney Diaphragm Bladder Ureter
12	Main role to give out air form lungs is;	Bronchus Bronchi Bronchiote Diaphragm