NEET Biology Cell : The Unit of Life
Cell : The Unit of Life PDF Notes, Important Questions and Synopsis
SYNOPSIS
- Kinds of Cells
FEATURE |
PROKARYOTIC CELL |
EUKARYOTIC CELL |
Nucleus |
Absence of well-defined nucleus |
Presence of well-defined nucleus with a nuclear membrane |
Nucleolus |
Absent |
Present |
Genetic material |
Presence of a single length of only DNA |
Presence of several lengths of DNA wound around certain proteins |
Ribosomes |
Presence of smaller ribosomes |
Presence of larger ribosomes |
- Components of Eukaryotic Cell
CHARACTERISTICS |
FUNCTIONS |
Plasma membrane |
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Cell wall (only in plant cells) |
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Cytoplasm |
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Endoplasmic reticulum |
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Mitochondria |
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Golgi apparatus (in animal cells) Dictyosomes (in plant cells) |
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Ribosomes |
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Lysosomes |
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Centrosomes |
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Plastids |
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Nucleus |
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Vacuoles |
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Granules |
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Cytoskeleton |
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Cilia and Flagella |
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Microbodies |
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