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Cell Energy Gizmo Student Investigation - Document preview page 1

Cell Energy Gizmo Student Investigation - Page 1

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Cell Energy Gizmo Student Investigation

Explore how photosynthesis and cellular respiration power life in the Cell Energy Cycle Gizmo. Learn key inputs/outputs and how plants and animals depend on each other for survival.

Alice Edwards
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Cell Energy Gizmo Student Investigation - Page 1 preview imageGizmosN a m e -Date:Student Exploration: Cell Energy CycleDirections: Follow the instructions to go through the simulation. Respond to the questions and promptsin the orange boxes.Vocabulary:aerobic, anaerobic, ATP, cellular respiration, chemical energy, chlorophyll; chloroplast, cytoplasm,glucose, glycolysis, mitochondria, photosynthesis, radiant energyPrior Knowledge Questions (Dothese BEFORE using the Gizmo.)1.What does a plant need to sunive and grow?2.What does an animal need to survive and grow?3.How do animals and plants depend on each other?carbon dioxide, sunlight, water, food/ nutritionoxygen, water, foodplants need carbon dioxide which is produced byanimals and animals need oxygen from plants, someanimals also depend on plants as a food sourceGizmo Warm-upThe CellEnergyCycleGizmo TM illustrates two processes that areessential to life:photosynthesisandcellular respiration .Although both of these processes involve a series of complex steps, theinputs and outputs of each process are four relatively simple molecules.1.What is the chemi:al formula of oxygen?O,Glucoseis a simple sugar. What is the chemical formula of glucose?CfH XX|Carbon d ed*(a H;O3.What is the chemi:al formula of carbon dioxide?CO2.4.What is the chemi:al formula of water?
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Cell Energy Gizmo Student Investigation - Page 2 preview imageH:OGet the Gizmo ready:If necessary, click Reset.Check that the PHOTOSYNTHESIS tab is selected. Check thatDescriptionis turned on.Activity A;PhotosynthesisIntroduction:Photosynthesis occurs in thechloroplast,an organelle found in plant and algae cells. Within thechloroplast, a green pigment calledchlorophyllconverts theradiant energyof sunlight intochemical energythat the plant can use.Question: What are the inputs and outputs of photosynthesis?1.Predict: Of the molecules shown on the MOLECULES pane, -which do you think are inputs (ingredients) inphotosynthesis? Which do vou think are outputs?Inputs:CO;-i-H;OOutputs:Oz2.Explore: Drag each molecule from the MOLECULES pane to the chloroplast on the PHOTOSYNTHESIS pane.If a molecule is an input, it will star in the chloroplastWhich molecules are inputs in photosynthesis?CO- 4- H-OO2- CJJ]:OS4.Summarize: Although photosynthesis is a complex process involving many reactions, it can be summarized bvasimplified formula that shows inputs on the left and outputs on the right. Based on vour observations, write asimplified formula for photosynthesis:CO;+H;OOzT urn onShow iuput/output formulato check. W ere you correctYes5.Challenge: To balance the inputs and outputs of photosynthesis, there should be the same number of carbon,oxygen, and hydrogen atoms on each side of the arrow.
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Cell Energy Gizmo Student Investigation - Page 3 preview imagenoNow balance the input' output formula bv adding coefficients to each molecule. W rite the balancedformula below, and then check your work bv clickingBalance.60,6CO;6H-O+1C & O .Activity B:Get the Gizmo ready:*Click Reset.*Select the RESPIRATION tab.CellularIntroduction:Cellular respiration occurs in thecytoplasmof the cell and inmitochondria ,organelles found inall complex cells. (Bacteria and other simple organisms do not contain mitochondria.} The Gizmo shows amitochondrion surrounded bv yellow cvtoplasm.Question: What are the inputs and outputs of cellular respiration?1.Predict: Of the molecules shown on the MOLECULES pane, which do vou think are inputs (ingredients) incellular respiration? Which do vou think are outputs'Inputs:CjHuOj-i- &Outputs:CO;4-H:O2.Explore: Drag each molecule from the MOLECULES pane to the RESPIRATION pane.Which molecules are inputs in cellular respiration?C;H:O;-i- O;S'-Observe: ClickNext.What happens in the cvtoplasm?2 pyruvates and energy is made from one glucose moleculeThis process is calledglycolysis.Two pyruvate I.C.H.O. . molecules are produced in.glvcolvsis. The releasedenergy is used to form a net of twoATP(adenosine triphosphate) molecules. Energy is later released when ATPmolecules are broken down.Observe: Click Next. What happens now."the 2 pyruvate made in cvtoplasm is transferred into the mitochondria5-Observe: ClickNext.What happens in the mitochondrion?
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