GENERAL INSTRUCTIONS (Please read the following instructions very carefully)
1. Question marks are mentioned with each Question.
2. Please write neat and clean hand-writing on Answer Sheet. Use Margin on right side and left side of Answer Sheet.
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5. This is a ONE TIME attempt test. Once started, it cannot be reversed or attempted again.
6. Take photo of all the Sheets and make single pdf file.
1
The hair, present in the nostrils, stop the dust and germs, from entering the _________________ .
Respiratory system
Digestive system
Excretory system
None of these.
2
In Cockroaches and other insects oxygen reaches to the cells directly through the _______________ by means of diffusion.
Trachea
Spiracles
Gills
3
The nasal cavity leads into an organ called the ___________________ .
Larynx
Pharynx
Oesophagus
4
Earth worms breathe through _________________________ .
Lungs
Skin
None of these .
5
Diaphragm is a ________________ which is present between the chest and abdomen.
Membrane
Cell membrane
Rib cage
6
The respiratory organ of earthworm and leech are ___________ .
Moist skin
7
Unicellular animals breathe through their ________________ .
Cell wall
8
Air enters the ____________ through the nasal cavity .
Eyes
Ear
Nose
9
_______________ is an air- filled, hollow and large space that is present above the nose and in the middle of the face.
Nasal Cavity
Eye brows
Eye lashes
10
Which of the following are correct ?
(a) Terrestrial organisms use atmospheric oxygen for respiration, which is absorbed by different organs in different animals.
(b) All the respiratory organs in terrestrial organisms have a structure that decrease the surface area and is in contact with the oxygen rich atmosphere.
Only (a) is correct .
Only (b) is correct .
Both (a) and (b) is correct .
11
(a) Most mammals such as dogs, monkeys, horses, etc. respire through special sac like spongy organs called lungs .
(b) Tadpoles breathe through gills, though they breathe through skin and lungs when they became frogs.
12
(a) In cockroach and other insects trachea opens on the body surface in the form of very small pore. These pores are called spiracles .
(b) Unicellular animals breathe through their plasma membrane.
Only (b) is correct.
Both (a) and (b) is correct.
13
(a) Nasal cavity is the space inside the nose.
(b) The wall of the nasal cavity are covered with the hair that traps the dust and harmful particles and purify the inhaled air.
14
(a) Air enters the nose through the nasal cavity.
(b) The hair, present in the nostrils, stop the dust and germs, from entering the respiratory system.
(c) Nasal cavity is an air- filled, hollow and large space that is present above the nose and in the middle of the face.
Only (a) and (b) is correct.
Only (b) and (c) is correct.
Only (a) and (c) is correct.
All of these.
15
(a) The process of breakdown of food material in the presence or absence of oxygen is called as respiration.
(b) The frog has two respiratory surface on its body that is used to exchange gas with the surroundings : the moist skin and lungs .
(c) Amoeba and paramecium respire through the surface of their body that is a cell membrane .