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7th grade cells

Organelles and functions of human, animal and plant cells

TermDefinition
Mitochondria Produces energy through chemical reactions – breaking down fats & carbohydrates. Also controls level of water and other materials in cell and recycles and decomposes proteins, fats, and carbohydrates
Vacuole Membrane-bound sacs for storage, digestion, and waste removal. It contains water solution and helps plants maintain their shape
Nucleus is an organelle controlling the cell functions.has 2 major functions, to store the cell DNA and control the cell activities. Only eukaryotic cells have this organelle & take up 10% of the cell’s volume making it one of the most important features.
Chloroplast only found in plant cells and also provides food for the cell. They function to convert light energy (sunlight) into sugars that can be used by the cell & also releases oxygen (photosynthesis). Also contains chlorophyl to help with this process.
Ribosome They are tiny structures in the cell & produce protein. The location of the organelle predicts what type of protein it creates.
Cell membrane This organelle is a thin semi-permeable membrane surrounding the cytoplasm & protects the interior of the cell by allowing certain substances to enter the cell and some to be kept outside
Cell wall is found outside the cell membrane & surrounds the cell. It contains cellulose, protein & other polysaccharides. It provides support & protection and the pores in it allow water & nutrients to enter the cell.
Cytoplasm This is a jelly-like substance which holds up the other organelles and is surrounded by the cell membrane. It also contains hereditary material.
Chromosomes Is located within the nucleus and is made of DNA. This organelle also contains instructions for traits and characteristics
Endoplasmic Reticulum Moves materials around in cell and has two types: rough and smooth • Smooth type: lacks ribosomes • Rough type: ribosomes embedded in the surface
Golgi bodies Protein 'packaging plant' It moves materials within the cell and moves materials out of the cell
Lysosomes Digestive 'plant' for proteins, fats, and carbohydrates It transports undigested material to the cell membrane for removal and the cell will break down if this organelle explodes
Created by: lucyhatch
 

 



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