MCQ
Which of the following lacks cell wall?
- AGametes
- BAmoeba
- CMycoplasma
- ✓All of these
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$CO _{2}+ H _{2} O \stackrel {A} {\rightleftharpoons} H _{2} CO _{3} \stackrel {B} {\rightleftharpoons} \rightleftharpoons HCO _{3}^{-}+ H ^{+}$
$(i)$ It is a membrane bound space found in the cytoplasm.
$(ii)$ It is bound by a single membrane called tonoplast.
$(iii)$ It contains water, sap, excretory products and other materials not useful to the cell.
$(iv)$ It has higher concentration of sap than the cytoplasm.