A pair of human being lungs generally consists of around 700 million alveoli, which are the basic units the respiration, and together produce around 70 square metres of surface ar area.




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Which of the complying with statements room true about respiration ? (i) throughout inhalation, ribs relocate inward and diaphragm is raised. (ii) the gas exchange takes ar in the alveoli. (iii) haemoglobin has greater affinity for carbon dioxide than oxygen. (iv) alveoli rise surface area for the exchange the gases (a) (i) and also (iv) (b) (ii) and (iii) (c) (i) and also (iii) (d) (ii) and also (iv)


Assertion :Human lungs have massive surface area for exchange of gases Reason: In humans, glottis is guarded through epiglottis
1. Before the waiting enters the trachea, it have to pass with the _________________(a) alveoli(b) bronchi(c) pharynx(d) bronchioles
During respiration, the exchange of gases takes location in:(a) bronchi(b) alveoli(c) bronchioles(d) trachea

Which of the adhering to statements room true around respiration ? (i) throughout inhalation, ribs relocate inward and also diaphragm is raised. (ii) the gaseous exchange takes ar in the alveoli. (iii) haemoglobin has better affinity because that carbon dioxide than oxygen. (iv) alveoli increase surface area because that the exchange that gases (a) (i) and (iv) (b) (ii) and also (iii) (c) (i) and also (iii) (d) (ii) and (iv)


Assertion :Human lungs have huge surface area because that exchange the gases Reason: In humans, glottis is guarded through epiglottis
1. Prior to the waiting enters the trachea, it have to pass with the _________________(a) alveoli(b) bronchi(c) pharynx(d) bronchioles
During respiration, the exchange of gases takes ar in:(a) bronchi(b) alveoli(c) bronchioles(d) trachea

Which that the complying with statements room true around respiration ? (i) throughout inhalation, ribs move inward and diaphragm is raised. (ii) the gas exchange takes place in the alveoli. (iii) haemoglobin has greater affinity for carbon dioxide than oxygen. (iv) alveoli boost surface area because that the exchange that gases (a) (i) and (iv) (b) (ii) and (iii) (c) (i) and also (iii) (d) (ii) and also (iv)


Assertion :Human lung have huge surface area because that exchange of gases Reason: In humans, glottis is guarded by epiglottis
The edge length of one FCC cell that a salt X is 508pm. If the radius of the cation is 110pm, the radius of an anion is:
A stone is dropped right into a lake native a tower 500 metre high. The sound of splash will certainly be heard by the man about after:
Suggest three contraceptive approaches to regulate the size of human population which is necessary for the health and also prosperity that a country. State the simple principle associated in each.
The edge size of one FCC cell that a salt X is 508pm. If the radius of the cation is 110pm, the radius of one anion is:
A stone is dropped right into a lake native a tower 500 metre high. The sound the splash will be heard by the man around after:
Suggest 3 contraceptive techniques to regulate the dimension of human populace which is essential for the health and prosperity that a country. State the straightforward principle connected in each.
The edge size of one FCC cell that a salt X is 508pm. If the radius that the cation is 110pm, the radius of an anion is:


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A rock is dropped right into a lake from a tower 500 metre high. The sound of splash will be heard through the man around after: