10th class Biology chapter 1 online mcq test with answers for matric part 2 Biology chapter 1(Gaseous Exchange)

Gaseous Exchange

Sr. #	Questions	Answers Choice
1	Percentage of CO₂ in exhaled are during breathing is:	16% 4% 79% 0.04%
2	What happens during Exhalation?	Ribs muscles relax Diaphragm become dome shaped Pressure on lungs increased All of these
3	Which bring deoxygenated blood form heart into lungs?	Pulmonary veins Pulmonary Artery Aorta Wind Pipe
4	The number of lobes in right lung is:	1 2 3 4
5	The muscles of ribs are called;	Smooth muscles Cardiac muscles Intercoastal muscles Coastal muscles
6	A thick muscular layer beneath lungs is called:	Kidney Diaphragm Bladder Ureter
7	Main role to give out air form lungs is;	Bronchus Bronchi Bronchiote Diaphragm
8	Power of speaking is only gifted to:	Human being Monkey Parrot Crow
9	The glottis is guarded by a flap of tissue called:	Trachia Glottis Bronchi Epiglottis
10	Where does the gaseous exchange occur in humans:	Pharynx Larynx Trachea Epiglottis
11	Glottis is a narrow opening at the floor of:	Nasal cavity Nostril Pharynx Antibiotics
12	No. of bronchi in the air passage way are:	1 2 3 4