chapter 1 vocab./terms

Term Definition
cell the basic sturctural unit of a living thing
nucleus the storehouse of the cell's most important chemical information
organelle a cell structure that performs specific functions
Cell Theory *all living things are made of one or more cells
*the cell is the smallest unit of a living thing
*cells come from other cells
cell membrane thin bendable cover around all cells which lets food, water, and gases enter and lets waste leave
cell wall found in plant cells protects and helps a plant to stand up
cytoplasm liquid between the nucleus and cell membrane, all organelles are found here
ribosome they make proteins
Golgi apparatus changes proteins so they will be ready to leave the cell
lysosomes they help the cell break down food or nutrients and cell parts
vacuoles sacs filled with liquid, they hold water, food,and waste
mitochondria peanut shaped organelle that is know as the power plants of the cell, production of energy occurs here
chloroplasts contain chlorophyll with gives plants their green color, food for the plant is made here
Endoplasmic reticulum group of membranes and tubes, breaks down deadly matter and controls the amounts of some chemicals
amphibian a vertebrate that begins its life in water but lives part of the time on land
cnidarian an invertebrate with radial symmetry, a saclike body, a true mouth, and the ability to digest food
invertebrate an animal without a backbone
symmetry a matching pattern, either on opposite sides of an imaginary dividing line or around a middle point
vertebrate an animal with a backbone

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