Question

3
(b) Rate of breathing in aquatic organisms is much faster than that in
terrestrial organisms. Give reasons.
(c) Complete the following pathway showing the breakdown of glucose :
in cytoplasm
c.
Presence of O2
?
?
Glucose
(1)
+ H,0
(3-carbon in mitochondria
(6-carbon
+ energy
molecules
molecules)
+ energy)
1​

Answer 1

Answer:

b- because the amount of oxygen in water is less than that of the amount of oxygen in air

Answer 2

Answer:

b) SInce the amount of dissolved oxygen is fairly low compared to the amount of oxygen in the air, the rate of breathing in aquatic organisms is much faster than that in  terrestrial organisms.

c) Refer the image below -