Cell Theory states that :
Types of Cells :
It is simple and primitive in nature.
It is developed and comparatively complex in nature.
The nucleus is not well organized. It has no nuclear membrane and nucleolus.
The nucleus is well organized. Nuclear membrane and nucleolus are present.
The cell has no membrane bound organelles except ribosomal granules.
The cell contains almost all the membrane bound organelles.
Chromosomes are not formed in this cell during cell division.
Chromosomes are formed in the nucleus during cell division.
Single DNA thread remains freely in the nuclear material.
DNA is present in the nuclear reticulum or chromosomes.
A plant cell has a rigid wall on the outside.
Cell wall is absent.
It is usually larger in size.
An animal cell is comparatively smaller in size
It cannot change its shape
An animal cell can often change its shape
Plastids are found in plant cells.
Plastids are usually absent.
Plant cells exposed to sunlight possess chlorophyll containing plastids called chloroplasts.
Chlorophyll is absent
A mature plant cell contains a large central vacuole.
An animal cell often possesses many small vacuoles.
Nucleus lies on one side in the peripheral cytoplasm.
Nucleus usually lies in the center.
Mitochondria are comparatively fewer.
Mitochondria are generally more numerous.
Cristae are tubular in plant mitochondria.
Cristae are plate - like in animal mitochondria.
Plant cells do not burst if placed in hypotonic solution due to the presence of cell wall.
Animal cells usually burst if placed in hypotonic solution unless and until they possess contractile vacuoles.