dome shaped
oblique
flattened
normal
C. flattened
yeast cell in fermentation
a liver cell in glycolysis
an Amoeba in aerobic respiration
a muscle cell in lactic acid formation
exchange of gases between lungs and blood
cellular respiration
exchange of gases between lungs and atmosphere
respiration in open air
medulla oblongata
spinal cord
vagus nerve
cerebrum
tidal volume
ventilation rate
residual volume
all of these
protein
polysaccharide
enzyme
none of these
lack of sufficient amount of haemoglobin
lack of sufficient amount of erythrocytes
arterial hypoxia
anaemic hypoxia
RBC
WBC
Both (a) and (b)
RBC and hormones
asthma
pericarditis
bronchitis
pneumonia
expiration
inspiration
respiration
oxidation
hypercapnia
pulmonary edema
hypoxia
emphysema
Oxidases
Metabolites
ATP
ADP
haemocyanin
haemoglobin
myoglobin
haemoerythrin
anaemia
deoxygenation
detoxification
hypoxia
dome shaped
oblique
flattened
normal
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
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
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
3 per cent
25 per cent
16 per cent
20 per cent
sleeping
running
eating food
playing
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
egg-laying mammals only
marsupial mammals only
eutherian mammals only
all the mammals
trachea
bronchi
bronchioles
none of these
chemicals
physical conditions
nerves
all of these
dull red
bluish red
bright red
dull brown
less than that is lung capillaries
equal to that in lung capillaries
double of that in lung capillaries
half of that in lung capillaries
neuron
alveolus
bronchus
none of these
external nares
pharynx
larynx
bronchi
vital capacity
residual volume
inspiratory capacity
any of these
larynx
epiglottis
glottis
bronchi
sucking-in air
pushing expired air out
pushing mucus out
keeping the alveolar air in circulation