sucking-in air
pushing expired air out
pushing mucus out
keeping the alveolar air in circulation
C. pushing mucus out
5000 ml of oxygen per day
5000 ml of oxygen per hour
500 ml of oxygen per hour
200 ml of oxygen per minute
neuron
alveolus
bronchus
none of these
exchange of gases between lungs and blood
cellular respiration
exchange of gases between lungs and atmosphere
respiration in open air
chemicals
physical conditions
nerves
all of these
returns highly oxygenated blood to the left heart for distribution throughout the body
returns highly oxygenated blood to right heart for distribution throughout the body.
delivers blood to lungs low in oxygen
delivers highly oxygenated blood in lungs
3 per cent
25 per cent
16 per cent
20 per cent
trachea
bronchi
bronchioles
none of these
conjunctiva
pleura
meninges
peritoneum
sucking-in air
pushing expired air out
pushing mucus out
keeping the alveolar air in circulation
Contract
relax
expand
shows no change
Cells lining the lung cavities
Cells found in blood
All living cells of the body
RBC only
haemocyanin
haemoglobin
myoglobin
haemoerythrin
less than that is lung capillaries
equal to that in lung capillaries
double of that in lung capillaries
half of that in lung capillaries
less than that in alveolar air
more than that in alveolar air
equal to that in alveolar air
similar to oxygen pressure in the capillaries
absence of oxygen
diminished amount of oxygen delivered to the tissues
both (a) and (b)
none of these
Amoeba
Bed bug
Hydra
Tapeworm
asthma
pericarditis
bronchitis
pneumonia
the larynx is closed
the trachea gets narrowed
the gas exchange area of lungs is increased
the gas exchange area of lungs is decreased
Oxidases
Metabolites
ATP
ADP
anaemia
deoxygenation
detoxification
hypoxia
yeast cell in fermentation
a liver cell in glycolysis
an Amoeba in aerobic respiration
a muscle cell in lactic acid formation
cerebral cortex
hypothalamus
medulla oblongata
procencephalon
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
tidal volume
ventilation rate
residual volume
all of these
Copper
Magnesium
Iron
Manganese
sleeping
running
eating food
playing
expiration
inspiration
respiration
oxidation
larynx
epiglottis
glottis
bronchi
dull red
bluish red
bright red
dull brown
vital capacity
residual volume
inspiratory capacity
any of these