CELL
1. CELL MEMBRANE
2. CYTOPLASM
The jelly-like substance present between the cell membrane and the nucleus. Various organelles present in the cytoplasm are:
(i) Mitochondria
(ii) Plastids (present only in plant cell)
(iii) Endoplasmic reticulum (ER)
(iv) Ribosome
(v) Lysosome
(vi) Vacuole
(vii) Golgi body
(viii) Centrosome (present only in animal cell).
3. NUCLEUS
Nucleus is separated from the cytoplasm by a nuclear membrane. It is generally spherical in the centre of the cell. Nuclear membrane: The nucleus is separated from the cytoplasm by a membrane called the nuclear membrane. Nucleus contains a still smaller round body known as nucleolus. Vacuoles are empty or blank looking structures in the cytoplasm. The nucleus contains thread-like structures called chromosomes. These carry genes. Gene is a unit of inheritance in living organisms. It controls the transfer of a hereditary characteristic from parents to offspring. Cells without a well-organised nucleus, i.e. lacking nuclear membrane, are called prokaryotic cells.