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Science 10

Science 10. Aim: What are the plant structures, and what are some specialization in plant cells. Agenda. Science Sizzler. Plant Notes continued Quiz rewrite Monday during I2 or lunch Worksheets due today if you want the marks (instead of 0) on your report card.

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Science 10

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  1. Science 10 • Aim: What are the plant structures, and what are some specialization in plant cells.

  2. Agenda • Science Sizzler. • Plant Notes continued • Quiz rewrite Monday during I2 or lunch • Worksheets due today if you want the marks (instead of 0) on your report card. • Chem rewrite on Tuesday at lunch. • Bring Pizza Supplies for Tuesday

  3. New website address lethwchs.weebly.com This one has an easier name to remember

  4. The Leaf and Photosynthesis The leafs main purpose is to carry out or support the process of photosynthesis Each tissue type (dermal, ground, and vascular), has a particular purpose and function that support this.

  5. The Chloroplast • An organelle in plant cells where photosynthesis occurs. • Contains a green pigment called chlorophyll. • Easy to see because of green colour. • Found in ground tissue of leaves and sometimes in stems.

  6. Photosynthesis • The process in which plants convert sunlight, water and carbon dioxide into oxygen and glucose. • Light energy is absorbed, and converted into chemical energy that is stored in glucose molecules.

  7. Movement of Chloroplasts in cells has given indirect evidence that cytoplasm behaves like a fluid. • This movement is called cytoplasmic streaming. • Allows for the speeding up of material distribution in cells. • Discovered by Robert Brown who also discovered the ____________

  8. Gas Production in Cells • Two important reactions that produce gases as products in plants. • The first was photosynthesis, the second is in many ways the opposite. • The following reaction is used to obtain energy to fuel the cell’s activities.

  9. Cellular Respiration • A set of reactions resulting with a release of energy. • Takes place in the mitochondria

  10. These reactions produce the energy needed for the cell to carry out its life processes. • This reaction also occurs in animal cells. • Plant tissues respire at a much lower rate however. • In the dark, photosynthesis stops, but cellular respiration continues. • Studies done on these reactions tend to measure the amounts of gas reactant used or gas product formed.

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