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Topic 1.1: Cell Theory p. 5 and 6

Topic 1.1: Cell Theory p. 5 and 6. Red blood cells. Q1: Are volcanoes living things? Explain. A1: No. (not made of cells.). Q2: Make a table listing the characteristics of living things and examples of NON-living things that show these characteristics. A2: refer to next slide.

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Topic 1.1: Cell Theory p. 5 and 6

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  1. Topic 1.1: Cell Theory p. 5 and 6 Red blood cells Q1: Are volcanoes living things? Explain. A1: No. (not made of cells.) Q2: Make a table listing the characteristics of living things and examples of NON-living things that show these characteristics. A2: refer to next slide Q3: What are the important differences between living and non-living things? A3: Living things must have ALL the characteristics of living things. A5: All living things are composed of one or more cells and all new cells arise from preexisting cells. Q5: What are the two main parts of cell theory? Q6: What technology has allowed us to learn about cells? A6: Microscopes

  2. Characteristic Non living thing -batteries have cells -dust balls grow -appliances require energy -furnace responds to cold -cars produce waste • made of cells • Reproduce/grow/repair • -require energy • -respond to environment • -produce waste

  3. All living things reproduce!!

  4. Topic 1.2: Microscope Use p. 395 Q7: What three parts of the microscope combine to make objects look larger? A7: Two lenses (ocular and objective) and a light source Q8: Which adjustment knob should you use when using the medium and high power objective lenses? A8: The fine adjustment knob (NOT THE COARSE ADJUSTMENT KNOB) ALWAYS CARRY YOUR MICROSCOPE WITH TWO HANDS!!!!!!!!!

  5. Ocular lens Coarse Adj. Fine Adj. Objective Lens Stage Diaphragm Light Base

  6. Topic 1.3: Plant and Animal Cells p. 10 to 13 A9: Refer to next slide Q9: Complete the table of organelle functions. A10: Similarities: Plant cells have the same organelles as Animal Cells. Differences: Plant cells have a cell wall, chloroplasts and a bigger vacuole Q10: List the similarities and differences between plant and animal cells. Q11: Where in a cell would you find genetic information? A11: The Nucleus Q12: Predict what might happen to a cell if the membrane was replaced by a plastic covering. A12: Cell would die as it can’t remove wastes or bring in nutrients.

  7. Control centre carry genetic info regulate materials in/out store water/nutrients & waste (bigger in plants) protection and support photosynthesis ? movement move fluid

  8. Show video: “flagellum”

  9. Plant Cell Animal Cell Chloroplast Vacuole Nucleus Cytoplasm Cell Membrane Cell Wall

  10. Cell membrane Nutrients Wastes Cytoplasm Proteins Water

  11. Chloroplasts Topic 1.3: Plant and Animal Cells p. 10 to 13 Q13: How do chloroplasts make food for a plant cell? A13: Chloroplasts take in carbon dioxide (CO2) and water to make sugar and oxygen (O2). Q14: What other items are required for photosynthesis. A14: Light from the sun and chlorophyll (a pigment). Q15: What is the word equation for photosynthesis. A15: carbon dioxide and water (with energy) produces glucose and oxygen

  12. Photosynthesis (in chloroplasts of plants) + + Energy chlorophyll Carbon dixoide water sugar oxygen Cellular respiration (in mitochondrion of animals) + + + Energy oxygen water sugar Carbon dixoide

  13. Show MS student video clip, “photosynthesis”

  14. Images seen with a Light Microscope Mascara Brush (x35) Moth Antenna (x15)

  15. Images seen with an SEM Spider Beetle

  16. Images taken with a TEM Mitchondria in a cell (are they happy?) HIV (human immuno-defficiency virus)

  17. Smooth E.R. Material transport Nucleus Cell Wall Rough E.R. Material Transport Cell Membrane Vacuole Ribosomes Makes Proteins Golgi Apparatus Packaging Cytoplasm Chloroplast Food for plants Lysosome Recycling Mitochondrion Energy from food

  18. Animal Cell

  19. Topic 1.6: Parts of a Cell Seen with an Electron Microscope. p. 19 to 21 Complete 1.6 CYU #1,3,4 p. 21 A16: Tiny structures in the cell’s cytoplasm Q16: What are organelles? Q17: Predict what would happen if the mitochondria stopped working? A17: The cell would quickly run out of energy and not be able to do its job. Q18: Stomach cell release enzymes made of protein. Why would stomach cells have lots of golgi apparatuses? A18: Golgi allow the release of proteins outside of the cell.

  20. Golgi apparatus Topic 1.6: Parts of a Cell Seen with an Electron Microscope. p. 19 to 21 Q19: What are the proteins produced in the ribosomes used for? A19: Growth, repair and reproduction. Q20: How do lysosomes help protect you? A20: They destroy bacteria. Q21: If there was no Golgi apparatus, what would happen to the protein produced in a cell? A21: The protein would build up in the cell. p. 22 to 24 Q22: Explain the process of diffusion. A22: Movement from high to low concentration.

  21. Topic 1.7: Cells in Their Environment. p. 22 to 24 A29: Impermeable: nothing gets through. Permeable: all items get through Selectively (Semi) Permeable: only certain substances get through Q23: Explain impermeable, permeable, selectively permeable. A30: Selectively permeable (semi-permeable), to let wastes out and nutrients in. Q24: What type of membrane do cells have? Explain why. Q25: Why are the pores of the membrane different sizes. A31: To let in different size molecules. Q26: Could cells survive without diffusion? Why or why not. A32: Cells could not survive without diffusion as wastes would build up (like carbon dioxide)

  22. Topic 1.7: Cells in Their Environment. p. 22 to 24 A27: Cell couldn’t control what goes in and out of the cell Q27: What would happen if cell membranes were not permeable? Q28: What happens when lemonade is spilled in a swimming pool? Would you detect the lemonade? A28: The lemonade would diffuse, however if wouldn’t likely be detectable due to low concentration Q29: Describe two everyday situations were diffusion occurs. A29: Smelling cologne, food.

  23. Diffusion Animation

  24. Topic 1.8: Osmosis. p. 25 to 28 Q30: How are osmosis and diffusion the same/different? A30: Osmosis is the diffusion of water across a membrane. Q31: What determines the movement of water? A31: From high to low concentration. Q32: What prevents a plant cell from bursting? A32: The cell wall protects it. Q33: Why are animal cells more likely to burst than plant cells in distilled water? A33: Animal cells have no cell wall. A34: To increase turgor pressure, keeping vegetables from wilting. Q34: Why do grocery stores spray water on vegetables? A35: Water moves from inside plant (high concentration) to the outside (low concentration) Q35: Why does saltwater cause plants to wilt?

  25. 100% Water 50% Water Salt Water Cell Membrane

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