Question

Match column I with column II and select the correct option from the given codes.

Column I	Column II
(A) Trachea	(i) $P{O}_2$ in alveolar air
(B) Respiratory centre	(ii) ATP
(C) Yeast	(iii) Cartilaginous rings
(D) Insects	(iv) Medullaoblongata
(E) Fish	(v) Larynx
(F) Biologically useful energy	(vi) Tracheal respiration
(G) 100mm Hg	(vii) Ethanol
(H) Vocal cords	(viii) Branchial respiration

• A. A-(iii), B-(iv), C-(vii), D-(vi), E-(viii), F-(ii), G-(i), H-(v)
• B. A-(v), B-(ii), C-(vii), D-(viii), E-(vi), F-(iv), G-(i), H-(iii)
• C. A-(vi), B-(iv), C-(viii), D-(v), E-(i), F-(ii), G-(iii), H-(vii)
• D. A-(i), B-(v), C-(vii), D-(iii), E-(viii), F-(ii), G-(iv), H-(vi)

Answer 1

The correct option is A A-(iii), B-(iv), C-(vii), D-(vi), E-(viii), F-(ii), G-(i), H-(v)

• Trachea consists of C-shaped cartilaginous rings that support the walls of the trachea and prevent its collapse during inspiration.
• Respiratory centre is located in the medulla oblongata.
• Yeast undergoes anaerobic respiration to produce ethanol and $C{O}_2$.
• The type of respiration in insects and fish is tracheal respiration and branchial respiration respectively.
• ATP is a biologically useful energy produced during respiration.
• The partial pressure of $O_2$ in alveolar air is approximately 104 mm Hg.
• Vocal cords are present inside the larynx.
  

So the current option is A.