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11/4 & 11/5 - 7th Grade Agenda Learning Objective: Learn about the Cell Cycle Collect Reading & Notetaking p.77 & 78 Collect HW: Signed Grade Printout Collect HW: Cell Model Textbook Reading: p HW: Reading & Note Taking p.79 – 80
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Reflection Prompt: Write 3 facts that you know about photosynthesis or respiration. (Write in complete sentence)?
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Chloroplasts orophyll
Chl________ pigments inside chloroplasts absorb su________ and convert it into energy nlight Chloroplasts
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Stomata arbon C_________ D________ is absorbed through openings in the underside of the leaves called Stomata ioxide
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Close up of Stomata
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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
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Autotrophs & Heterotrophs
Which organisms in these photos are autotrophs? Which organisms in these photos are heterotrophs?
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What is Respiration? What is respiration?
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Respiration Demonstartion
Cup your hand and hold it over your mouth Breath out Rub your hands
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What is Respiration? tosynthesis ergy bohydrate
During pho______________ plants capture and save en_____ in the form of car_________ (sugars and starches) ergy bohydrate
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What is Respiration? After you e__, your body converts the carbohydrates into gl_______ (type of sugar) at ucose
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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
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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
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Fermentation provides en_______ from cells without using ox_______
ergy ygen
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Alcoholic Fermentation: Y_____is used to break down s______ and produce carbon dioxide (making br_____ and be_____) east ugar ead er
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Lactic Acid Fermentation happens when you over work your m_______ and your cells don’t get enough o_______ uscle xygen
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How do we grow? Does our cells get larger?
Cell Division
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Cell Cycle Interphase Prophase Cytokinesis Metaphase Telophase
DNA Replicate Prophase Chromosomes pair up Cytokinesis Two cell are creates Metaphase line up in middle Telophase Chromosomes move far away Anaphase Chromosomes pull apart
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Cell Cycle Interphase Cytokinesis Mitosis Two cell are creates
DNA Replicate Cytokinesis Two cell are creates Mitosis Nucleus divide into two A copy of DNA is distributed to each Nucleus
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Cell Cycle ? ? ? ? ? ? Interphase Prophase Cytokinesis Metaphase
Telophase Anaphase ? ?
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Interphase ob 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
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Mitosis : Prophase air up Prophase:
Identical Chromatids p______. They are held together by a centromere air up
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Mitosis : Metaphase iddle
Metaphase: Chromosomes line up in the m______ iddle
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Mitosis : Anaphase part
Anaphase: The centromeres split and the chromosomes are pulled a______ part
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Mitosis: Telophase ar Telophase:
Each set of chromosomes are F___ away and a nucleus forms around them ar
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Cytokinesis oves Cytokinesis
The cell membrane m______ inwards then pinches in two. This form 2 identical cells oves
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DNA – Deoxyribonucleic Acid
Nitrogen Based Molecules (4 Letters of DNA Alphabet) Adenine – Thymine Guanine - Cytosine
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Reflection Prompt: Draw the Elodea Plant Cell through the microscope and write one question that you have about the observation.
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