In protozoans like $Amoeba$ or $Paramecium$,the organelle responsible for osmoregulation is ....... .

Which organelle is generally absent in animal cells?

Which organelle is found only in plant cells?

Identify the correct pair regarding cell organelles and their membrane structure.

In germinating seeds,fatty acids are primarily degraded in which of the following?

Given below are some characters of a cell organelle. Identify the correct organelle which shows all the characters described above.
$(i)$ 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.