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Biology Paper 1

Terms in this set (119)

Eukaryotic Cell
Cell that has a nucleus and other membrane-bound organelles
Prokaryotic Cells
Genetic material is not enclosed in a nucleus. They are much smaller
An Animal cell contains...
Nucleus, cytoplasm, cell membrane, mitochondria, ribosomes
A plant cell contains...
Nucleus, cytoplasm, cell membrane, mitochondria, ribosomes, chloroplasts, cell wall, vacuole
Function of Nucleus
Enclose genetic material
Function of Cytoplasm
Liquid where chemical reactions occur
Function of cell Membrane
Control what enters and leaves the cell
Function of Mitochondria
Where aerobic respiration takes place
Function of Ribosomes
Site of protein synthesis
Function of chloroplasts
Contain chlorophyll and are the site of photosynthesis
Function of cell wall
Strengthen the cell; made of cellulose
Function of Vacuole
Full of cell sap; keeps the plant cells shape
Differentiation
The process of a cell becoming specialised; having a specific function
Sperm cells adaptations
Half the genetic material, long tail for swimming, lots of mitochondria for energy, contain egg-digesting enzymes
Nerve cell adaptations
Long axons carry impulses, myelin insulates and speeds up, synapse allow impulses to move, contains egg digesting enzymes
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