Cells
Cells as in prokaryotic and eukaryotic cells
Study summary
Prokaryotic Cells
Has NO nucleus
A bacterial cell
Features
Cell Wall -> Protects and strengths the cell
Cell Membrane -> Controls what enters and exits the cell
Chromosomal DNA -> Controls the cells activities
Plasmid DNA -> Controls the cells activities
Cytoplasm -> Where the chemical reactions take place
Ribosomes -> Produces proteins
Flagellum -> Rotates to move the bacteria
Slime Coat -> To protect the bacterium
Eukaryotic Cells
Has a nucleus
Eg. Animal and Plant Cells
Features
Plant Cells:
Nucleus -> Controls the cells activities
Cell Wall -> Protects and strengthens the cells
Cell Membrane -> Controls what enters and exits the cells
Chloroplasts -> Contains chlorophyll which is needed for photosynthesis
Cytoplasm -> Where the chemical reaction takes place
Large Vacuole -> Contains sap and helps support the cell
Animal Cells :
Nucleus -> Controls the cells activities
Cell Membrane -> Controls what enter and exits the cell
Ribosomes -> Produces proteins
Cytoplasm -> Where chemical reactions take place
Mitochondria -> Where most of the energy is released, in the process of respiration
GCSE Edexcel Definition
Prokaryotic cells are simple cells that lack a nucleus and other membrane-bound organelles. Instead, their genetic material is located in a single circular chromosome that is not surrounded by a membrane.
Eukaryotic cells are complex cells that contain a nucleus and other membrane-bound organelles. They are larger and more complex than prokaryotic cells
