Solution :
The conractile vacuole is supposed to assist excertion in Amoeba, as its watery contents possess traces of carbon dioxide and urea. The $${CO_2}$$ diffuses directly through plasmalemma.
Releted MCQ Question on Botany >> Biological Classification
Releted Question 1
Pick up the wrong statement
A.
Protista have photosynthetic and heterotrophic modes of nutrition
In the five-kingdom system of classification, which single kingdom out of the following can include blue green algae, nitrogen-fixing bacteria and methanogenic archaebacteria?