CBSE · Biology
Breathing and Exchange of Gases
82 practice questions for CBSE — 51 easy · 31 medium · 0 hard. Every question is graded instantly with a step-by-step solution when you miss it.
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MCQ
In the given diagram, what should be P, Q, R and S respectively?
MCQ
The oxyhaemoglobin dissociation curve shifts towards left due to increase in ___________?
MCQ
The partial pressure of oxygen of blood in pulmonary capillaries is ----(i)---- mmHg while in alveolar air it is -------(ii)----- mmHg?
MCQ
Arrange the following in order of increasing volume (P) Residual volume (Q) Tidal volume (R) Inspiratory reserve volume (S) Expiratory reserve volume
MCQ
Before the formation of oxyhaemoglobin, the $\text{O}_2$ has to pass through _________ membranes from the alveolar air.
MCQ
Which special feature among the following is seen in frogs for gaseous exchange through the skin?
MCQ
Match the parts of respiratory system given in column I with their respective functions in column II and choose the correct option given below. Column IColumn IIA. Mesethmoid cartilageI. separates thoracic and abdominal…
MCQ
Entry of food into trachea is prevented by ___________.
MCQ
Which one of the following parts of the pharynx is the continuation of the internal nares?
MCQ
In the lungs, the alveolar air is separated from blood by ______.
MCQ
Following are the parts of upper respiratory system i) External nares ii) Nasal cavities iii) Internal nares iv) Nasopharynx v) Larynx vi) Trachea Choose the correct answer from the options given below:
MCQ
Which of the following doesn't happen during inspiration?