Biology Unit 2

Cells -

B2 1.1

• Animal cells contain a Nucleus, Cytoplasm, Cell Membrane, Mitochondria, and ribosomes.
• Plant cells contain all the structures seen in animal cells as well as a cell wall and, in many cases, chloroplasts and a permanent vacuole filled with sap.
• Enzymes control the chemical reactions inside the cell

B2 1.2

• Cells may be speciallised to…