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11/21 & 11/22 - 7 th Grade Agenda

11/21 & 11/22 - 7 th Grade Agenda. Learning Objective: Learn about the Cell Cycle Collect HW: Reading Guide Chapter 4 Section 1 & 2 Mitosis (Cell Division) Microscope Lab #2 Video: Private Lives of Plants Class Reading: 126 - 136 HW: Reading & Note Taking p.75 - 78. Reflection.

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11/21 & 11/22 - 7 th Grade Agenda

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  1. 11/21 & 11/22 - 7th Grade Agenda Learning Objective: Learn about the Cell Cycle Collect HW: Reading Guide Chapter 4 Section 1 & 2 Mitosis (Cell Division) Microscope Lab #2 Video: Private Lives of Plants Class Reading: 126 - 136 HW: Reading & Note Taking p.75 - 78

  2. Reflection • Prompt: Write 2 questions that you have about photosynthesis or respiration. (Write in complete sentence)?

  3. Chloroplasts orophyll • Chl________ pigments inside chloroplasts absorb su________ and convert it into energy nlight Chloroplasts

  4. Stomata arbon • C_________ D________ is absorbed through openings in the underside of the leaves called Stomata ioxide

  5. Close up of Stomata

  6. Do plants produce carbon dioxide? (Yes or No) • Can plants produce oxygen at night? • How can plants create the required energy at night? At night, plants breath in small amount of oxygen and produce carbon dioxide

  7. Autotrophs & Heterotrophs • Which organisms in these photos are autotrophs? • Which organisms in these photos are heterotrophs?

  8. What is Respiration? • What is respiration?

  9. Respiration Demonstartion • Cup your hand and hold it over your mouth • Breath out • Rub your hands

  10. What is Respiration? tosynthesis • During pho______________ plants capture and save en_____ in the form of car_________ (sugars and starches) ergy bohydrate

  11. What is Respiration? • After you e__, your body converts the carbohydrates into gl_______ (type of sugar) at ucose

  12. Respiration: 2 Stage Process ucose • Stage 1: Gl______ is broken down into smaller molecules • Stage 2: Mit________ takes the ox______ and glucose and converts it into ca_____ dioxide, w______ & energy ochondria ygen rbon ater

  13. What is the relationship between Photosynthesis and Respiration? • Photosynthesis and respiration can be thought of as opposite processes • Together these two process form a cycle that keeps the level of oxygen and carbon dioxide fairly constant

  14. Fermentation provides en_______ from cells without using ox_______ ergy ygen

  15. Alcoholic Fermentation: Y_____is used to break down s______ and produce carbon dioxide (making br_____ and be_____) east ugar ead er

  16. Lactic Acid Fermentation happens when you over work your m_______ and your cells don’t get enough o_______ uscle xygen

  17. How do we grow?Does our cells get larger? • Cell Division

  18. Cell Cycle Interphase DNA Replicate Prophase Chromosomes pair up Metaphase line up in middle Cytokinesis Two cell are creates Telophase Chromosomes move far away Anaphase Chromosomes pull apart

  19. Cell Cycle Interphase DNA Replicate Cytokinesis Two cell are creates Mitosis Nucleus divide into two A copy of DNA is distributed to each Nucleus

  20. Cell Cycle ? Interphase Prophase ? ? Cytokinesis Metaphase ? Telophase Anaphase ? ?

  21. Interphase • Stage 1: Interphase: Period before cell division occurs. • Cell is doing its J___ while growing (doubles in size) • Replicates (make a copy) its DNA ob

  22. Mitosis : Prophase Prophase: Identical Chromatids p______. They are held together by a centromere air up

  23. Mitosis : Metaphase Metaphase: Chromosomes line up in the m______ iddle

  24. Mitosis : Anaphase Anaphase: The centromeres split and the chromosomes are pulled a______ part

  25. Mitosis: Telophase Telophase: Each set of chromosomes are F___ away and a nucleus forms around them ar

  26. Cytokinesis Cytokinesis The cell membrane m______ inwards then pinches in two. This form 2 identical cells oves

  27. DNA – Deoxyribonucleic Acid • Nitrogen Based Molecules (4 Letters of DNA Alphabet) • Adenine – Thymine • Guanine - Cytosine

  28. Reflection • Prompt: Draw an animal cell that you look through the microscope and write one question that you have about the observation.

  29. Microscope Lab

  30. Microscope Lab #2Reflection • Prompt: Observe a slide. • 1. Write what it is. • 2. Draw what you see. • 3. Describe what you see.

  31. Mitosis Animations & Movie • http://www.pbs.org/wgbh/nova/baby/divide.html# • http://www.contexo.info/DNA_Basics/mitosis%20movie.htm

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