Cells

History Robert Hooke Observed cork from plants “a great many little boxes” Reminded him of cubicles or “cells” where monks live

History Anton van Leeuwenhoek Cell Theory First person to observe living cell Cell Theory All living organisms are composed of one or more cells Cells are the basic units of structure & function in an organism Cells come only from the reproduction of existing cells

Basic Types Prokaryotes Eukaryotes What is the difference?

What type of cell?

Cell Organelles Plasma membrane Nucleus Mitochondria Ribosomes Endoplasmic reticulum Golgi apparatus Vesicles Lysosomes, peroisomes Cytoskeleton Cell wall Vacuole Chloroplast

Organelles Plasma membrane Nucleus Mitochondria Regulates what goes in & out of the cell Nucleus Controls the cell; where DNA is located Mitochondria Creates the energy for the cell. “Power House”

Organelles Ribosomes Endoplasmic Reticulum Golgi Apparatus Builds proteins Endoplasmic Reticulum Moves molecules from one part to another Rough ER-ribosomes are attached Smooth ER Golgi Apparatus Packs, modifies, & ships proteins

Organelles Vesicles Cytoskeleton Cytoplasm Lysosomes-digestive enzymes Peroxisomes-break down alcohol, bacteria, & fatty acids Cytoskeleton Gives cell shape Cytoplasm Holds organelles in place

Organelles (Only in Plants) Cell Wall Rigid layer outside plasma membrane Vacuole Stores large amounts of water Chloroplast Where photosynthesis takes place

Plant vs. Animal Cells Mostly the same organelles EXCEPT Cell wall Vacuole Chloroplast

Eukaryote Types Plant Cell Animal Cell

Cell Analogy Write an analogy using all the organelles found in both plant & animal cells Plasma membrane Nucleus Mitochondria Ribosomes Endoplasmic reticulum Golgi apparatus Vesicles Lysosomes, peroisomes Cytoskeleton