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In this quiz, you will be going to solve questions related to breathing and the exchange of gases, steps involved, etc.
The process which involves the gaseous exchange between the organism and its environment is called as _______
Carbon dioxide is harmful to the body.
The respiration mechanism of an organism mainly depends on which of the following?
Which of the following organisms undergo respiration through diffusion?
Earthworms respire through organs called as ______
Which one of the following is NOT correct?
______ lies in front of esophagus.
In the brain, the respiratory control center lies in:
Pons
Medulla oblongata
Hypothalamus
Cerebrum
Deoxygenated blood from the heart comes to the lungs via?
Pulmonary vein
Systemic vein
Pulmonary artery
Systemic artery
The bulk of carbon dioxide (CO2) released from body tissues into the blood is present as?
Bicarbonate in blood plasma and RBCs
70% carbamino- haemoglobin and 30% as bicarbonate
Carbamino-haemoglobin in RBCs
Free CO2 in blood plasma
A large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues. This O2:
Acts as a reserve during muscular exercise
Is enough to keep oxyhaemoglobin saturation at 96%
Helps in releasing more O2 to the epithelial tissues
None of these
Oxygen dissociation curve of haemoglobin is:
Sigmoid
Hyperbolic
Hypobolic
Linear
Which one of the following organs in the human body is most affected due to shortage of oxygen?
Brain
Kidney
Skin
Intestine
When CO2 concentration in the blood increases, breathing becomes?
Faster and deeper
Slow and deep
There is no effect on breathing
Shallower and slow
In human beings, oblique fissures are associated with :
Right lung
Left lung
Both lungs
None of these
