What is the role of smooth endoplasmic reticulum in the liver cells of vertebrate animals?

Draw a plant cell and label the parts which:
$(a)$ determines the function and development of the cell
$(b)$ packages materials coming from the endoplasmic reticulum
$(c)$ provides structural strength to the cell to withstand hypotonic external media without bursting
$(d)$ is the site for many biochemical reactions necessary to sustain life
$(e)$ is a fluid contained inside the nucleus

State the reason for the following:
$(i)$ Mitochondria are known as the powerhouse of the cell.
$(ii)$ Plastids are able to make their own protein.
$(iii)$ Plant cells shrink when kept in a hypertonic solution.

$(a)$ What are the consequences of the following conditions?
$(i)$ $A$ cell having higher water concentration than the surrounding medium.
$(ii)$ $A$ cell having lower water concentration than the surrounding medium.
$(iii)$ $A$ cell having equal water concentration to its surrounding medium.
$(b)$ Name the materials of which the cell membrane and cell wall are composed.

Draw any two cell shapes to justify the statement that cells come in a variety of shapes.

Name any two cell organelles which are bound by a double-layered membrane. Give one function of each.