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Chapter 7 “A View of the Cell” p. 170 – 193

Chapter 7 “A View of the Cell” p. 170 – 193. campus.queens.edu/faculty/jannr/cells/index.htm www.ndpteachers.org/perit/biology_image_galle... www.emc.maricopa.edu/.../BioBookAnimalTS.html types of organ tissue cells www.answers.com/topic/cell-organization.

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Chapter 7 “A View of the Cell” p. 170 – 193

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  1. Chapter 7 “A View of the Cell”p. 170 – 193 campus.queens.edu/faculty/jannr/cells/index.htm www.ndpteachers.org/perit/biology_image_galle... www.emc.maricopa.edu/.../BioBookAnimalTS.html types of organ tissue cells www.answers.com/topic/cell-organization This Powerpoint is hosted on www.worldofteaching.com Please visit for 100’s more free powerpoints

  2. COMMON CELL TRAITS • A cell is the smallest unit that is capable of performing life functions.

  3. COMPARING CELLS • The size & shape of a cell relates to its function. (job it does)

  4. Prokaryotic Cells(proh KAYR ee yah tihk) • cells without membrane-bound structures • EX: bacteria pond scum

  5. Eukaryotic Cells(yew KAYR ee yah tihk) • cells with membrane-bound structures • EX: animals, plants, fungi and protists

  6. CELL WALL • protects the cell • gives shape • is made of cellulose • A cell wall is found in plants, algae, fungi, & most bacteria.

  7. CELL MEMBRANE • Outer covering, protective layer around ALL cells • For cells with cell walls,the cell membrane is inside the cell wall • Allows food, oxygen, & water into the cell & waste products out of the cell.

  8. CYTOPLASM • gelatin-like inside cell membrane • constantly flows • aka protoplasm

  9. CYTOSKELETON • scaffolding-like structure in cytoplasm • helps the cell maintain or change its shape • made of protein

  10. NUCLEUS • Directs all cell activities • Contains instructions for everything the cell does • These instructions are found on a hereditary material called DNA • Usually the largest organelle

  11. NUCLEAR MEMBRANE • separates nucleus from cytoplasm • controls movement of materials in & out of nucleus

  12. NUCLEOLUS • Aka “little nucleus” • Found in the nucleus • Ribosomes made here

  13. CHROMATIN • contains genetic code that controls cell • made of DNA & proteins (deoxyribonucleic acid)

  14. Cell Structure This Powerpoint is hosted on www.worldofteaching.com Please visit for 100’s more free powerpoints

  15. CHLOROPLASTS • Green organelles that make food • found only in plant cells

  16. CHLOROPHYLL • A green pigment that gives leaves & stems their color • Captures sunlight energy that is used to produce food called glucose • Glucose is a type of sugar

  17. MITOCHONDRIA • Organelles that release energy from food • This energy is released by breaking down food into carbon dioxide • AKA the powerhouse b/c they release energy from food • Some muscle cells have 20,000 mitochondria

  18. RIBOSOMES • Make proteins • Float freely or attached to the endoplasmic reticulum (ER) • Ribosomes are made in the nucleolus

  19. ENDOPLASMIC RETICULUM • A series of folded membranes that move materials (proteins) around in a cell • like a conveyor belt • Smooth ER – ribosomes not attached to ER • Rough ER – ribosomes attached to ER

  20. GOLGI BODIES (GAWL jee) • Stacked flattened membranes • Sort and package proteins

  21. VACUOLES • Temporary storage spaces • Store food, water, waste

  22. LYSOSOMES (LI suh sohmz) • The word "lysosome" is Latin for "kill body." • The purpose of the lysosome is to digest things. They might be used to digest food or break down the cell when it dies. • Break down food molecules, cell wastes & worn out cell parts

  23. FROM CELL TO ORGANISM Tissue Group of cells working together Organ Group of tissues working together Organ System Group of organs working together Organism Any livingthing made of 1 or more cells

  24. NAME THE ORGANELLE a. Nucleus c. Golgi body b. Chloroplast d. Mitochondria

  25. 1- Nucleus 2- Chromosomes 7- ER 3- Mitochondria 5- Chloroplasts 8- Cell Membrane 4- Ribosomes 6- Vacuoles

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