Which cell organelle controls most of the activities of the cell?

If you are provided with some vegetables to cook,you generally add salt into the vegetables during the cooking process. After adding salt,vegetables release water. What mechanism is responsible for this?

Why are lysosomes known as 'suicide-bags' of a cell?

Which of the following can be crystallized?

What is the significance of
$(a)$ presence of cell sap in vacuoles?
$(b)$ presence of $SER$ in liver cells?
$(c)$ presence of ribosomes on $RER$?

The cell organelle involved in forming complex sugars from simple sugars is: