Respiration in insects is called direct because

Question

Respiration in insects is called direct because (A) the cells exchange O2/CO2 directly with the air in the tubes (B) the tissues exchange O2/CO2 directly with coelomic fluid (C) the tissues exchange O2/CO2 directly with the air outside through body surface (D) tracheal tubes exchange O2/CO2 directly with the haemocoel which then exchange with tissues

Tardigrade Admin · Accepted Answer

Respiration in insects is independent of its coelomic fluid. They respire by a tracheal system and the cells exchange

O_{2} / C O_{2}

directly with the air in the tubes.
So, the correct answer is 'the cells exchange

O_{2} / C O_{2}

directly with the air in the tubes'.

Q. Respiration in insects is called direct because

the cells exchange $O_{2} / C O_{2}$ directly with the air in the tubes

the tissues exchange $O_{2} / C O_{2}$ directly with coelomic fluid

the tissues exchange $O_{2} / C O_{2}$ directly with the air outside through body surface

tracheal tubes exchange $O_{2} / C O_{2}$ directly with the haemocoel which then exchange with tissues

Respiration in insects is independent of its coelomic fluid. They respire by a tracheal system and the cells exchange $O_{2} / C O_{2}$ directly with the air in the tubes.
So, the correct answer is 'the cells exchange $O_{2} / C O_{2}$ directly with the air in the tubes'.

Q. Respiration in insects is called direct because

the cells exchange O2​/CO2​ directly with the air in the tubes

the tissues exchange O2​/CO2​ directly with coelomic fluid

the tissues exchange O2​/CO2​ directly with the air outside through body surface

tracheal tubes exchange O2​/CO2​ directly with the haemocoel which then exchange with tissues

Respiration in insects is independent of its coelomic fluid. They respire by a tracheal system and the cells exchange O2​/CO2​ directly with the air in the tubes. So, the correct answer is 'the cells exchange O2​/CO2​ directly with the air in the tubes'.

the cells exchange $O_{2} / C O_{2}$ directly with the air in the tubes

the tissues exchange $O_{2} / C O_{2}$ directly with coelomic fluid

the tissues exchange $O_{2} / C O_{2}$ directly with the air outside through body surface

tracheal tubes exchange $O_{2} / C O_{2}$ directly with the haemocoel which then exchange with tissues

Respiration in insects is independent of its coelomic fluid. They respire by a tracheal system and the cells exchange $O_{2} / C O_{2}$ directly with the air in the tubes.
So, the correct answer is 'the cells exchange $O_{2} / C O_{2}$ directly with the air in the tubes'.