At high altitude, RBC's of human blood will
increase in number
decrease in number
decrease in size
increase in size
A.
increase in number
At altitude the partial pressure of the oxygen decreases in atmosphere so there is less oxygen available to carry out respiration. In order to compensate the cellular oxygen demand, the body increases the amount of RBC present to trap as many oxygen molecules as possible.
Hiccups can be best described as
forceful sudden expiration
forceful contraction of intercostal muscles during deep breathing
vibration of the soft palate during breathing while sleeping
jerky incomplete inspiration.
Oxygen binding to haemoglobin in blood is
directly proportional to the concentration of CO2 in the medium
inversely proportional to the concentration of CO2 in the medium
directly proportional to the concentration of CO in the medium
independent of the concentration of CO in the medium
Which part of the nephrons is impermeable to water
Proximal convoluted tubule
Distal convoluted tubule
Ascending limb of loop of Henle
Descending limb of loop of Henle
Assertion: Smoking causes oxygen deficiency in the body.
Reason: Carbon monoxide when inhaled while smoking, combines with haemoglobin to form chemically stable compound.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
During anaerobic conditions, the rate of glycolysis increases, is called
compensation point
extinction point
Warburg effect
Pasteur effect
Which of the following products are obtained by anaerobic respiration from yeast?
Alcohols
CO2
Beer and Wine
All of the above
