Tissues, Organs, and Systems of Living Things Talk about the progression from cells to tissue to organs to organ systems to organisms

Pg 23

Cell Theory All living things are made up of one or more cells and their products. The cell is the simplest unit that can carry out all life processes. All cells come from other cells; they do not come from non-living matter.

prokaryote A cell that does not contain a nucleus or other membrane-bound organelles Examples of prokaryotes (bacteria): E. coli, Streptococcus, Lactobacillus, Salmonella DNA not enclosed in a membrane!

Eukaryote A cell that contains a nucleus and other organelles, each surrounded by a thin membrane DNA enclosed in a membrane!

Organelle A cell structure that performs a specific function for the cell ONLY contained in EUKARYOTIC cells

What now? Break off into groups of 2-3 people Choose an organelle (pg. 30, 31, 32) Become an expert in 10-15 min Present your findings to class Assign groups to different organelles is they can’t decide on their own

Organelles to choose from Cytoplasm Cell membrane Nucleus Mitochondria Endoplasmic reticulum Golgi bodies Vacuoles Only in plants: Cell wall Vacuoles Chloroplasts

Organelle Nucleus Cytoplasm Cell membrane

Organelle Mitochondria Endoplasmic Reticulum

Organelle Vacuoles in plant and animal cells

Organelle Golgi bodies

Organelle (in plant cells ONLY) Chloroplasts Cell wall

Organelle (in plant cells ONLY) Vacuoles in plant cells

What organelle is in this picture?

Organelle