Cell - The basic unit of structure and function in living things., Theory - Idea that explains something and is supported by data., Robert Hooke - Used microscope to look at cork. Gave "cells" their name because the cork looked like little rooms called cells. The cells that he saw were dead., Anton van Leeuwenhoek - First person to observe living cells., Cell Membrane - Thin structure that surrounds a cell, Cytoplasm - All the living material inside a cell, except the nucleus., Nucleus - Control center of the cell., Mitochondria - Rice-shaped structure that gives cell its energy. The "powerhouse!", Organelles - small structures in the cytoplasm that do special jobs. Another name for "cell parts.", Ribosomes - Small round structures that make proteins., Vacuoles - Liquid-filled spaces in the cytoplasm., Cellulose - Hard, nonliving material that makes up the cell wall of a plant cell., Cell Wall - Outer nonliving part of a plant cell., Chlorophyll - Green material in chloroplasts that is needed for plants to make food., Chloroplast - Green structure in a plant cell that contains chlorophyll, 3 jobs of the cell membrane - 1) protects the cell 2) gives support & shape 3) lets materials in & out, Cellular Respiration - The process by which cells use Oxygen to produce energy from food,

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