In blood, CO2 is transported majorly as
sodium carbonate
carboxyhaemoglobin
bicarbonate
CO2 as such
C.
bicarbonate
In dissolved state 7% of CO2 gets dissolved in the blood plasma and about 0.3 mL of CO2 is transported per 100 mL of blood in plasma.
In the form of bicarbonate about 70% of CO2 is received by blood from tissues, enters the RBCs where it reacts with water to form carbonic acid (H2CO3).
As carbaminohaemoglobin about 23% of CO2 is transported in combination with haemoglobin and plasma proteins. CO2 reacts with NH2 (amine radicals) of Hb to form an unstable compound cabamino- haemoglobin (Hb.CO2).
Sodium bicarbonate acts as a buffer of blood.
In frog heart, there are cardiac muscles which consists of fibres called
Purkinje fibres
myonemes
telodendria
columnae carnae
Malphigian tubules are
excretory organs of insects
excretory organs of frog
respiratory organs of insects
endocrine glands of insects
