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T2-Cell Systems L2

T2-Lesson 2 Cell Structures 7th grade

Part of a cell Organelles are tiny structures that carry out of specific function within a cell. Structure (parts) Function (job)
Cell Wall 1. Found in plants 2. Found in some fungi, bacteria, and protists. 3. NOT in animal cells. 4. STRUCTURE- Rigid; made of Cellulose/chitin 5. FUNCTION- Protect and support cell
Cell Membrane 1. Found in ALL cells. 2. STRUCTURE- thin, flexible barrier 3. FUNCTION- prevents harmful material from entering the cell; controls what enters and exits the cell.
Cytoplasm 1. STRUCTURE- clear fluid made mostly of water, and some salt. 2. FUNCTION- holds all of the cells organelles; carries nutrients and proteins throughout the cell.
Nucleus 1. STRUCTURE- large, oval, contains DNA 2. FUNCTION- controls cells activities; DNA provides instructions for cell function.
Endoplasmic Reticulum and Ribosomes 1. STRUCTURE- a maze of passageways; ribosomes are small "dots" located on ER and in cytoplasm. 2. FUNCTION- processes many substances like proteins and lipids; ribosomes make proteins.
Golgi Apparatus 1. STRUCTURE- flattened sacs of tubes. 2. FUNCTION- like the warehouse; packages and distributes materials around and out of the cell.
Mitochondria 1. STRUCTURE- rod shaped 2. FUNCTION- "powerhouse" of the cell; creates energy.
Chloroplasts 1. STRUCTURE- in plants and some bacteria/protists. 2. FUNCTION- captures energy from the sun and turns into food.
Lysosomes 1. STRUCTURE- small, round organelles. 2. FUNCTION- "recycling center"; break down wastes
Vacuoles 1. STRUCTURE- water filled sac; larger in plants 2. FUNCTION- stores water, food, and other materials.
Cells working together Specialized cells- Unicellular, Multicellular, Cells have different shapes
Unicellular Cell performs all functions to sustain life; if cell dies, organism dies.
Multicellular Organisms More Complex; cells do specific jobs
Cells have different shapes nerve cell/red blood cell
Cells make Up and Organism Cell>Tissue>Organ> Organ System>Organism
Created by: pinedaK
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