Prokaryote

• The prokaryotes are a group of organisms whose cells lack a cell nucleus.

Eukaryote

• A eukaryote is an organism whose cells contain complex structures enclosed within membranes.

Organelle

• Tiny structures that carry out functions necessary for the cell to stay alive

Nucleus

• Control center of the cell

Ribosome

• small organelles that make proteins

Cytoplasm

• region between the cell membrane and the nucleus

Vacuole

• an organelle that stores food, water, and other materials needed by the cell

Lysosome

• contain substances that break down large food particles into smaller ones

Chloroplast

• A structure in the cells of plants and some other organisms that captures energy from sunlight and uses it to produce food.

Mitochondria

• organelles that convert the chemical energy stored in food into compounds that are more convenient for the cell to use

Cilia and Flagella

Chlorophyll

• Chlorophyll is a green pigment found in cyanobacteria and the chloroplasts of algae and plants.

Cell Wall

• A rigid structure that surrounds the cells of plants and most bacteria

Plasma Membrane

• thin, flexible barrier around a cell; regulates what enters and leaves the cell

Microfilaments/Microtubules• Microfilaments or actin

filaments are the thinnest filaments of the cytoskeleton, a structure found in the cytoplasm of eukaryotic cells.

• Microtubules are a component of the cytoskeleton, found throughout the cytoplasm. These tubular polymers of tubulin can grow as long as 25 micrometres

Golgi Apparatus

• receives proteins and other newly formed materials from the ER, packages them, and distributes them to other parts of the cell or to the outside of the cell

Endoplasmic Reticulum

• network of membranes within a cell's cytoplasm that produces a variety of substances

Chromatin

• contains information for directing a cell's activities

Centrioles

• A centriole is a cylinder shaped cell structure found in most eukaryotic cells, though it is absent in higher plants and most fungi.