cells. 2 types of cells prokaryotic (bacteria) eukaryotic (plant & animal) both contain...
TRANSCRIPT
CELLS
2 Types of Cells
• Prokaryotic (Bacteria)• Eukaryotic (Plant & Animal)
• Both contain Organelles
Nucleus
• Has nuclear envelope with pores to allow materials to pass in and out
• DNA is inside in the form of chromatins• Ribosomes are made in the center of the
nucleus in the nucleolus.
Cytoskeleton
• The inside of the cell • Network of fibers• Support and movement
Ribosomes
• Made in the nucleolus• Found in the cytoplasm• Found on the endoplasmic reticulum• Ribosomes make protein
Rough Endoplasmic Reticulum
• Rough because of Ribosomes on the surface• Makes products for the cells like packaging
proteins to be sent off• The rough ER buds off transport vesicles to
ship to other parts of the cells
Smooth Endoplasmic Reticulum
• Make lipids (fats) and steroids• Make enzymes
Golgi Apparatus
• Receives packages from ER• Finishes the packages and stores them• Distributes the packages • Like UPS Man
Lysosomes
• Sac of digestive enzymes • Break down macromolecules
Mitochondrion
• Where the glucose is broken down into energy• Cellular Respiration • Powerhouse of the cell• Has membrane• Looks like a bacteria• Has own DNA
Cilia & Flagella
• Propels cells through liquids • Cilia is many
Centrioles
• Microtubules (protein) that grow spindle fibers that divide the chromosomes in cell division
Cellular Membrane
• Selectively permeable, barrier• Made of Phospholipids (Bilayer) and Proteins
• Tight junctions allows cells to be leak proof• Anchoring junctions attach cells to cells• Communicating junctions are channels that
allow water and food to be shared, as well as chemical messages to be sent
Cells Communicate by Junctions
Cell Wall
• In Plant cells only• Protects• Maintains Shape• Restrains the cell from absorbing too much
H2O
Vacuole
• In Plant Cells• Has membrane• Like a holding tank of fluid• Gives cells their shape
Chloroplasts
• In Plant Cells• Perform photosynthesis• Convert CO2 to water and the sun’s energy
into glucose and O2