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Lab # 4 Cell Structure Presented by Kami Dykes Kari What are the building blocks from which all parts of the human body are formed? cells How do you prepare a wet mount slide of cells lining the inside of your cheek? 1) Gently scrape the If she was making a inside of your cheek stained slide of her with a toothpick, cheek cells she would 2) add Place a drop cells of on dyeslide, and then cover the liquid 3) Cover the slide with a with a coverslip. coverslip. Cari is looking for what? Cheek cell This picture shows several epithelial tissue cells from a human cheek. The cell walls and nuclei are clearly visible. The cells are suspended in a fluid matrix of saliva. This picture, taken at a higher magnification, shows the same cells stained with methylene blue solution to show clearly the nuclei and cell walls. The cell in the middle which appears to have two nuclei is most likely two transparent cells stacked on top of each other. What are the structures of the cell? 1. 2. 1. Cell membrane 2. nuclear envelope 4. Endoplasmic Reticulum 5. Golgi body 6. Golgi body 7. Centriole 8. Lysosome 9. Mitochondrion 10. Vessicles 11. Chromatin 12. Nucleolus 13. Nucleus 19. "Dots in ER, Ribosomes" Cell structures and function What are the names of the organelle structures? Cell membrane Outside boundary of the cell centrosome Contains centrioles chromatin Loosely coiled fibers containing protein & DNA in nucleus Cilia Movement Cytoplasm Occupies space between cell membrane and nucleus ER Protein synthesis in RER, lipid and cholesterol synthesis in SER Golgi body Packaging and secretion (UPS guy) Iysosome Contains digestive enzyme ( garbage man of the cell) Mitochondrion Location of energy release from food molecules (powerhouse) Nuclear envelope Separates nuclear contents from the cytoplasm Nucleolus Nucleus Ribosome Dense body of RNA within nucleus Contains chromatin and nucleolus Small RNA-containing particles for the synthesis of proteins Cell structures