Question

1)Which tissues make up the vascular bundles ? What they do ?
2) Why is the nucleus called the control room of the cell ?
3) Why is the plasma membrane called selectively permeable ?​

Answer 1

Answer:

1.The xylem and phloem carry water and nutrients up and down the length of the stem and are arranged in distinct strands called vascular bundles. The epidermis is a single layer of cells that makes up the dermal tissue covering the stem and protecting the underlying tissue.

2.NUCLEUS IS CALLED CONTROL CENTRE OF THE CELL BECAUSE IT PERFORMS TWO MAIN PRINCIPAL FUNCTIONS

3.The plasma membrane is called a selectively permeable membrane as it permits the movement of only certain molecules in and out of the cells. ... If plasma membrane ruptures or breaks down then molecules of some substances will freely move in and out of the cells.