- Created by: h.omar
- Created on: 05-06-18 19:28
Eukaryotic and prokaryotic cells:
Eukaryotic cells are cells that have their DNA enclosed in a nucleus. For example, animal and plant cells. Prokaryotic cells are cells with their DNA loose in the cytoplasm. They are generally much smaller than eukaryotic cells.
Animal and plant cells:
Animal cells are eukaryotes. They have these organelles:
Nucleus - contains genetic information and controls cell's activity.
Cytoplasm - where most of the cell's chemical reactions take place.
Mitochondria - site of respiration (transferring energy)
Ribosomes - site of protein synthesis.
Cell membrane - controls what goes in and out (partially permeable)
Plant cells are also eukaryotes. They have the same organelles as animal cells but have 3 other features.
Chloroplasts - contain chlorophyll (site of photosynthesis)
Cell wall - made of cellulose, strengthens cell.
Vacuole - filled with cell sap which helps the cell keep its shape.
Bacterial cells are prokaryotes. They share some organelles as animal and plant cells but also have: