Haemoglobin can be almost completely oxygenated by an oxygen pressure of __________ of mercury.
A. 10 mm
B. 60 mm
C. 10 cm
D. 100 mm
Biology Mcqs
Oxygen contents per liter of air is____________?
Oxygen contents per liter of air is____________?
A. 10 ml
B. 100 ml
C. 200 ml
D. 100ml
The maximum amount of oxygen which normal human blood absorbs and carries at sea level is ________ per 100 ml of blood.
The maximum amount of oxygen which normal human blood absorbs and carries at sea level is ________ per 100 ml of blood.
A. 10 ml
B. 20 ml
C. 30 ml
D. 40 ml
Of the following, which one is better respiratory medium___________?
Of the following, which one is better respiratory medium___________?
A. Air
B. Water
C. Soil
D. None of these
During rest the breathing occurs rhythmically at the frequency of _________ times per minute in human?
During rest the breathing occurs rhythmically at the frequency of _________ times per minute in human?
A. 16-30
B. 15-20
C. 5?10
D. 6?12
___________ respiration is the process by which cell utilized oxygen and produces CO2 ?
___________ respiration is the process by which cell utilized oxygen and produces CO2 ?
A. Cellular
B. Organismic
C. Both of these
D. None of these
Lungs are covered with double layered thin membranous sac called___________?
Lungs are covered with double layered thin membranous sac called___________?
A. Disphragm
B. Pleura
C. Pericardium
D. Rib cage
___________ respiration is directly involved in the production of energy, necessary for all living activities?
___________ respiration is directly involved in the production of energy, necessary for all living activities?
A. Organismic
B. Cellular
C. Both of these
D. None of these
Lungs are spongy due to the presence of million of___________?
Lungs are spongy due to the presence of million of___________?
A. Air sacs
B. Alveoli
C. Bronchioles
D. Parabronchi
Functional units of lungs are called________?
Functional units of lungs are called________?
A. Alveoli
B. Air sacs
C. Parabronchi
D. None of these