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• Prokaryote = 1 celled organisms that lack a nucleus or other structures bound by a membrane. • They have been on Earth the Longest. • Eukaryote = organisms whose cells contain a nucleus surrounded by a membrane. Organelles = tiny organs inside a cell that help it function. Each living cell is made up of several working parts. These Parts are called organelles. They are kind of like the organs of a whole living organism. 9 Facts about cells. 200 – 300 cell types. This surrounds all cells and controls what goes in and out. Cleans and digests bad stuff from the cell Transports materials and has ribosomes. Contains the DNA. It is the brain of cell. Transports materials make fat and breaks down harmful chemicals. Surrounds the Nucleus Stores food and water for the cell. Makes Energy for the Cell. Glucose (food) + O2 are used to make ATP (energy molecule) + H20 + C02 for the cell. Gel-like mixture that fills in all the empty space and surrounds organelles. Packages Proteins Receive instructions from the nucleus to make protein Plants only have this structure. It provides a skeleton for the plant to stand up and provide support Plants only have this structure. Inside of each chloroplast is clorophyll that captures sunlight and makes it into energy 1. Cell SMART Quiz 2. Cell SMART Quiz