Organelle STRUCTURES inside the cell little organs organs

Organelle: STRUCTURES inside the cell; “little organs” organs

Cytoplasm: Gel-like material inside cells

Cell Membrane: “GATE KEEPER”—Controls what goes in and out Clip

NUCLEUS: Directs all cell activities With the electron micro-scope

NUCLEOLUS: Helps to make protein; Found inside nucleus

CHROMATIN (aka: DNA): Found in nucleus; Contains genes or instructions for cell’s activities Clip Under the electron microscope:

ENDOPLASMIC RETICULUM: Pathway for moving materials through cell (the “express-way”); usually close to the nucleus

RIBOSOMES: Make protein! Some are stuck on the E. R. Some are in the cytoplasm. Under the electron microscope: A simple diagram Clip Under the electron microscope

MITOCHONDRIA: Releases energy in the cell; the “powerhouse” Clip Under the electron microscope:

CHLOROPLAST: Found in plants ONLY! Converts sunlight into cell energy Under the microscope

CELL WALL: Found in plants only! Outer structure; made of cellulose. Provides support. Under the microscope

VACUOLES: Store water, food, and waste products. Usually larger in plants! Under the microscope

GOLGI BODIES: Nicknamed “UPS”—Packages & secretes (ships out) substances made inside the cell Clip Under the microscope

LYSOSOMES: Digests cell wastes and food “garbage disposal” Clip

What are the two parts plant cells have that animal cells do not have? • Cell Walls • Chloroplasts Clip

Prokaryotic vs. Eukaryotic Prokaryotic Cells: Cells NO NUCLEUS Eukaryotic Cells: Cells NUCLEUS have a TRUE Example: Bacteria Example: all cells in your body