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

Find out the false statement.

$(i)$ Why is the cell called the structural and functional unit of life?
$(ii)$ Why is the plasma membrane called a selectively permeable membrane?
$(iii)$ Name the factor which decides the movement of water across the plasma membrane.

State the cell theory. Name the scientists who presented it.

Living cells were discovered by

Cell secretions are done by