NATURAL SCIENCES NOTES

1. PLANT AND ANIMAL CELL
What is a cell: all living things are made are made of cells.
: They are basic building blocks of life.
What is a cell organelle: IS a specialised entity present inside a particular type of a
cell that performs a specific functions.
WHAT ARE VARIOUS ORGANELLS OF CELLS
 Nucleus
 Mitochondria
 Vacuoles
 chloroplast

3. The cell membrane
encloses the contents of the cell, provides protectionof a cell, It transport
nutrients into the cell and also transport toxic substances out of the cell.

4. The cytoplasm
A thick solution that fills each celland enclosed bythe cell membrane and
mainly composedof water,salts,and proteins,a jelly-like medium in which
many chemical reactions takes place, it includes all of the material inside
an outside of the nucleus.

5. The nucleus
Contains DNA which