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Looking inside Cells

Looking inside Cells. Cells and Heredity Chapter 1 Lesson 2. How do the Parts of a Cell Work: Cell Wall and Cell Membrane. Each cell structure has a different function within a cell. Cell Wall not present in animal cells Support and protection Cell membrane all cells

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Looking inside Cells

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  1. Looking inside Cells Cells and Heredity Chapter 1 Lesson 2

  2. How do the Parts of a Cell Work: Cell Wall and Cell Membrane • Each cell structure has a different function within a cell. • Cell Wall • not present in animal cells • Support and protection • Cell membrane • all cells • controls which substances pass into and out of the cell

  3. How do the Parts of a Cell Work: Nucleus • Nucleus • control center of the cell • Directs cell functions • Chromatin • Long uncoiled strands of DNA • Nucleolus • Inside the nucleus • Makes ribosomes

  4. 10/01/2013 • Bellringer • Look at the pictures on pgs. 14 and 15. These are electron micrographs (made with electron microscopes). Notice that all of the parts of the cell pictured have outer membranes. • What function does the outer membrane serve? Write your answer in sentence form in the blank space on pg. 15 above the animal cell sketch.

  5. How do the Parts of a Cell Work: Organelles inthe Cytoplasm • Organelles • Tiny cell structures that carry out specific functions within the cell • Ribosomes • Produce proteins • Cytoplasm • gel-like fluid that holds the organelles

  6. Organelles in the Cytoplasm • Mitochondria • Convert energy stored in food to cellular energy (make energy) • Endoplasmic Reticulum • Rough • Transports proteins that are made by the ribosomes • Smooth • Make substances and detoxifies

  7. Bellringer • Identify each of the following organelles • Powerhouse of the cell makes energy _______ • Transport system, transports proteins _______ • Holds the organelles ____________ • Controls what substances enter and exit_____ • Produces proteins __________ • Produces ribosomes _________

  8. Organelles in the Cytoplasm • Golgi apparatus • Packages and distributes cell products • Vacuole • Stores water food or other products • Chloroplast • Captures energy from sun and changes it to a form of food • Lysosomes • Digest food particles, old cell parts

  9. How do Cells Work Together • In multicellular organisms, cells are organized. • Tissue • group of similar cells that work together to perform a specific function • Organ • different tissues that function together • Organ system • group of organs that work together to perform a major function

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