haemocyanin
haemoglobin
myoglobin
haemoerythrin
B. haemoglobin
anaemia
deoxygenation
detoxification
hypoxia
Cells lining the lung cavities
Cells found in blood
All living cells of the body
RBC only
less than that is lung capillaries
equal to that in lung capillaries
double of that in lung capillaries
half of that in lung capillaries
5000 ml of oxygen per day
5000 ml of oxygen per hour
500 ml of oxygen per hour
200 ml of oxygen per minute
protein
polysaccharide
enzyme
none of these
expiration
inspiration
respiration
oxidation
dome shaped
oblique
flattened
normal
dull red
bluish red
bright red
dull brown
RBC
WBC
Both (a) and (b)
RBC and hormones
conjunctiva
pleura
meninges
peritoneum
egg-laying mammals only
marsupial mammals only
eutherian mammals only
all the mammals
Contract
relax
expand
shows no change
sucking-in air
pushing expired air out
pushing mucus out
keeping the alveolar air in circulation
Glottis
Vocal cords
Vocal sacs
Epiglottis
exchange of gases between lungs and blood
cellular respiration
exchange of gases between lungs and atmosphere
respiration in open air
haemocyanin
haemoglobin
myoglobin
haemoerythrin
25-30 times
10-15 times
14-18 times
20-25 times
increased alveolar ventilation and increased cardiac output
shift in the haemoglobin dissociation curve to the right
increased erythrocytes and haemoglobin content of blood
all of these
sleeping
running
eating food
playing
neuron
alveolus
bronchus
none of these
absence of oxygen
diminished amount of oxygen delivered to the tissues
both (a) and (b)
none of these
cerebral cortex
hypothalamus
medulla oblongata
procencephalon
moist
immersed in water
very thin
vascular
vital capacity
residual volume
inspiratory capacity
any of these
Pharynx, larynx, trachea, bronchi and bronchioles
Trachea, bronchi, bronchioles, alveolar ducts and alveoli
Respiratory bronchioles, alveola ducts, alveolar sacs and alveoli
Bronchi, bronchioles, alveolar ducts, alveolar sacs and alveoli
lack of sufficient amount of haemoglobin
lack of sufficient amount of erythrocytes
arterial hypoxia
anaemic hypoxia
flattened and ciliated cells to increase the surface area of lungs
columnar and ciliated cells to increase the surface area of lungs
only ciliated cells to increase the surface area of lungs
only squamous cells to decrease the surface area of lungs
3 per cent
25 per cent
16 per cent
20 per cent
chemicals
physical conditions
nerves
all of these
trachea
bronchi
bronchioles
none of these