Survey
* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
Two Types of Cells Prokaryotic Eukaryotic What do all cells have in common? ALL cells have a cell membrane, cytoplasm, DNA, and ribosomes Cell membrane – the flexible outer covering of a cell that controls what goes in and out What do all cells have in common? Cytoplasm – the liquid substance that fills up a cell DNA – cell instructions Ribosomes- a part in a cell that makes protein according to cell instructions What are the 2 main types of cells? 1. Prokaryotic Cells that lack a nucleus 2. Eukaryotic Cells that have a nucleus What is a nucleus? Nucleus – Holds the genetic information of the cell (DNA) and controls most cell activities Prokaryotic Cells Small, simple cells with a cell membrane, cytoplasm, DNA, & ribosomes No nucleus Single-celled (unicellular) organisms Example: bacteria Example of Prokaryotic Cells -Bacteria Example of Prokaryotic Cells -Nostoc (Cyanobacteria) Prokaryotic Cell Diagram Eukaryotic Cells Larger more complex cells with a cell membrane, cytoplasm, DNA, & ribosomes Have a nucleus and other organelles Organelles - specialized parts inside a cell with a particular function Either single-celled or part of a multicellular organism Example: plant, animal, fungus, protists Examples of Eukaryotic Cells -Plant and Animal Spirogyra (Protist) Eukaryotic Cell Diagram http://www.cellsalive.com/howbig.htm Prokaryotic vs. Eukaryotic