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Question-1
An increase in the P
50
of an oxyhaemoglobin curve will result a decrease in
(A)
pH
(B)
oxygen
(C)
metabolism
(D)
temperature
Question-2
The pulmonary artery carries
(A)
pure blood to lungs
(B)
impure blood to lungs
(C)
pure blood to stomach
(D)
pure blood to intestine
Question-3
Thyroid cartilage is found in
(A)
nose
(B)
pharynx
(C)
larynx
(D)
ear pinna
Question-4
The pulmonary respiration takes place through
(A)
skin
(B)
lungs
(C)
kidneys
(D)
both' 2' and' 3'
Question-5
During inspiration, the diaphragm
(A)
expands
(B)
shows no change
(C)
contracts and flattens
(D)
relaxes to become dome shaped
Question-6
Which of the following gases form most stable product with haemoglobin?
(A)
CO
2
(B)
O
2
(C)
CO
(D)
SO
2
Question-7
The exchange of gases in the alveoli of the lungs, takes place by
(A)
Osmosis
(B)
active transport
(C)
passive transport
(D)
simple diffusion
Question-8
Lungs are enclosed in
(A)
pericardium
(B)
peritoneum
(C)
perichondrium
(D)
pleural membrane
Question-9
A person breathing normally at rest, takes in and expels approximately half a litre of air during each respiratory cycle. This is called
(A)
tidal volume
(B)
vital capacity
(C)
inspiratory reserve volume
(D)
expiratory reserve volume
Question-10
Respiratory system is derived from
(A)
endoderm
(B)
mesoderm
(C)
ectoderm
(D)
both 2 and 3
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Plus 2 Biology Science
ICSE/ISC
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