Biology Class 10th MCQs | 10th Class Biology Solved MCQs Online Test

10th Class Biology English Medium Online Test For Full Book

Sr. #	Questions	Answers Choice
1	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
2	Percentage of CO₂ in exhaled are during breathing is:	16% 4% 79% 0.04%
3	What happens during Exhalation?	Ribs muscles relax Diaphragm become dome shaped Pressure on lungs increased All of these
4	Which bring deoxygenated blood form heart into lungs?	Pulmonary veins Pulmonary Artery Aorta Wind Pipe
5	The number of lobes in right lung is:	1 2 3 4
6	The muscles of ribs are called;	Smooth muscles Cardiac muscles Intercoastal muscles Coastal muscles
7	A thick muscular layer beneath lungs is called:	Kidney Diaphragm Bladder Ureter
8	Main role to give out air form lungs is;	Bronchus Bronchi Bronchiote Diaphragm
9	Power of speaking is only gifted to:	Human being Monkey Parrot Crow
10	The glottis is guarded by a flap of tissue called:	Trachia Glottis Bronchi Epiglottis
11	Where does the gaseous exchange occur in humans:	Pharynx Larynx Trachea Epiglottis
12	Glottis is a narrow opening at the floor of:	Nasal cavity Nostril Pharynx Antibiotics