Cellular Respiration

Fun FactWe all know that there are "holes" in bread, but how are they made? The answer sounds a little like the plot of a horror movie. Most breads are made using YEAST. Believe it or not, yeast is actually living microorganisms! When bread is made, the yeast becomes spread out in flour. Each bit of yeast makes tiny CO2 gas bubbles and that puts millions of bubbles (holes) in our bread before it gets baked. When the bread gets baked in the oven, the yeast dies and leaves all those CO2 bubbles (holes) in the bread. Yum.

Lab BenchGroup1Juanita, Amber, Omar , Edric2Meredith, Emily, Diego, Mariah3Kierstyn, Alexa, Kailey, Leslie4Timmy, Cortney, Madeline,5Joli, Magdalena, Jennifer, Tikiyah6Hannah, Miel, TyRon, NicoleColorResponsibilityRedTeam Leader, Reads procedure to groupBlueMaterial Getting, Puts the solutions in the test tubesPurpleBallooner, Puts balloons on top of test tubeGreenTime keeper and odds and ends, makes sure the group is done on time and does what ever has to be done._______ +____ _____ + ____ + ______Cellular Respiration: Complete the equation in your notes.C6H12O6O2CO2H2OATPGlucose/sugar/foodenergyCellular Respiration Purpose?Convert chemical energy (glucose) into useable energy (ATP)Organelle?Mitochondria/cytoplasm Organisms?Both plants AND animals

ATP - Adenosine tri-phosphateATP = ENERGY ATP is created during cellular respirationWhen ATP is broken down, energy is released and ATP becomes ADP.The cell uses that energy for different functionsRemoval of wasteMuscular contractionsCell division

Types of Cellular RespirationAerobic RespirationNeeds oxygen to make energynormal cellular respiration equationMakes large amounts of ATP energyAnaerobic RespirationCan create energy without oxygenExample: fermentationMakes small amounts of ATP energy

ExercisesAerobic exercises are:Aerobic classes that can be dancing to music or step dancing (fast movements). Treadmills Exercise bicycles Ski machines Jogging Sports such as racquetball and handball Anaerobic exercises are:Weight lifting Machines that offer resistance Dumbbells

Stop and ThinkDiscuss how anaerobic and aerobic exercises are different.How are both anaerobic and aerobic exercises beneficial to parts of your body.

Anaerobic Respiration FermentationLactic acid fermentationBuilds in muscles when oxygen levels are depleted (feel the burn!)Glucose Lactic Acid + 2 ATPAlcoholic fermentationYeast/fungus & Bacteria Converts sugars (grapes, barley, wheat, etc.) into energy with the by-product alcoholGlucose Ethanol + CO2+ 2 ATP

STOP AND THINKAfter completing the book activity answer the following question:Explain why your arms got sore from holding a book up?

Aerobic AnaerobicRespiration RespirationAbility to be sustained:ForeverShort term onlyProduction of ATP:38 ATP per 1 glucose2 ATP per 1 glucoseProcess:Oxygen is used to make ATPInorganic molecules other than oxygen are used to make ATP Where chemical reactions takes place:Cytoplasm and mitochondriaCytoplasmRequirement of sunlight:NoNoCarbon dioxide:Always releasedReleased during alcoholic fermentationNot released during lactic acid fermentationMain function:Production of energy (ATP) from food/glucose Production of energy (ATP) from food/glucose (when O2 is not available)Aerobic vs. Anaerobic RespirationDrunk Monkeys

ChemosynthesisPurpose?Creates Glucose from inorganic compounds/chemicalsWhere?Deep in the ocean by hydro-thermal vent communitiesNo light!Organisms?Tube wormsBacteria

Hydrothermal Vents

Chemosynthesis