hypercapnia
pulmonary edema
hypoxia
emphysema
D. emphysema
asthma
pericarditis
bronchitis
pneumonia
the oxygen content of the blood
the nitrogen content of the blood
receptors in the larynx
the carbon dioxide content of the bkxxl
3 per cent
25 per cent
16 per cent
20 per cent
sleeping
running
eating food
playing
anaemia
deoxygenation
detoxification
hypoxia
conjunctiva
pleura
meninges
peritoneum
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
Glottis
Vocal cords
Vocal sacs
Epiglottis
larynx
epiglottis
glottis
bronchi
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
RBC
WBC
Both (a) and (b)
RBC and hormones
residual volume
tidal volume
vital capacity
lung volume
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
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
Oxidases
Metabolites
ATP
ADP
dome shaped
oblique
flattened
normal
expiration
inspiration
respiration
oxidation
the larynx is closed
the trachea gets narrowed
the gas exchange area of lungs is increased
the gas exchange area of lungs is decreased
carbohydrates are synthesised
proteins are broken down
fat molecules are metabolised
energy is liberated
absence of oxygen
diminished amount of oxygen delivered to the tissues
both (a) and (b)
none of these
external nares
pharynx
larynx
bronchi
Copper
Magnesium
Iron
Manganese
egg-laying mammals only
marsupial mammals only
eutherian mammals only
all the mammals
Amoeba
Bed bug
Hydra
Tapeworm
5000 ml of oxygen per day
5000 ml of oxygen per hour
500 ml of oxygen per hour
200 ml of oxygen per minute
Cells lining the lung cavities
Cells found in blood
All living cells of the body
RBC only
chemicals
physical conditions
nerves
all of these
cerebral cortex
hypothalamus
medulla oblongata
procencephalon
25-30 times
10-15 times
14-18 times
20-25 times
neuron
alveolus
bronchus
none of these