Photosynthesis, Cellular Respiration, & ATP

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Photosynthesis, Cellular Respiration, & ATP. Energy. Where do plants get their energy from? The sun During which process? Photosynthesis Where do animals get their energy from? Food. Energy. Why do we need energy? To move, run, eat, sleep, metabolize. Cells and energy. - PowerPoint PPT Presentation


  • Photosynthesis, Cellular Respiration, & ATP

  • EnergyWhere do plants get their energy from?The sunDuring which process?PhotosynthesisWhere do animals get their energy from?Food

  • EnergyWhy do we need energy?To move, run, eat, sleep, metabolize

  • Cells and energyCells need energy. Why?To move molecules during transportCell divisionMove proteinsMove cilia and flagellaTO MAINTAIN HOMEOSTASIS!!!!

  • Cells and energyWhat do cells use for energy?Adenosine Triphosphate (yes you need to know this word)

  • ATPHow is ATP made?Adenosine + 1 phosphate = AMPAdenosine + 2 phosphates = ADPAdenosine + 3 phosphates = ATP

    Which has the most energy? ATP

  • ATPHow does a cell get to the energy in ATP?The bond between the second and third phosphate is broken and energy is released*Can be recycled in the cell!!!

  • PhotosynthesisThe process which plants make glucose and oxygen from carbon dioxide, water and sunlight. Photosynthesis is broken into two stages.

  • Photosynthesis MaterialsSunlight is trapped by the pigment chlorophyll in the chloroplastWater is taken in by the roots Carbon dioxide is taken in by the stomata on the underside of the leaves.

  • Photosynthesis ProductsOxygen is breathed out by the plants through the stomataGlucose is stored in the plant and only obtained by eating the plant.

  • 1st Stage PhotosynthesisLight-dependent reactions where light passes through the thykaloid membrane and down the electron transport chain. ATP, Oxygen and NADPH are formed during this process.

  • 2nd Stage PhotosynthesisThe second stage of photosynthesis is the light-independent reaction. It is called the Calvin CycleThe Calvin Cycle uses the ATP and NADPH (from the 1st stage) to produce the sugar glucose.

  • PhotosynthesisPhotosynthesis takes place in the chloroplast of plant cells.Chlorophyll in the chloroplast make the plants green because they dont absorb the green light.

  • Photosynthesis Light

  • Factors that affect PhotosynthesisAmount of waterLight intensityTemperature

  • Cellular RespirationThe process in which cells turn glucose into energy for running cellular activities.Cells need glucose and oxygen and produce carbon dioxide, water and energy.Cellular respiration takes place in 2 stagesCellular respiration equation

  • 1st Stage of Cellular RespirationThe first stage of occurs in the cells cytoplasm and is conducted by the lysosomes. It is an anaerobic process called glycloysis.2 ATPs are produced

  • 2nd Stage of Cellular RespirationThe second stage occurs in the mitochondria. It is in two parts. It is aerobic.1st is the Krebs cycle. For every turn through the cycle 1ATP and 2CO2 2nd is the electron transport chain in which 2H2O and ATPTotal 36 ATPs are produced during the two parts of 2nd stage of respiration

  • Photosynthesis & RespirationThey complement each other as each ones products are the materials are needed for the other.

  • FermentationFermentation takes place when oxygen is available and energy is needed.Two types of fermentationAlcoholicenergy, alcohol and carbon dioxide are the productsLactic Acidenergy and lactic acid are the products (2 ATPs produced) Occurs in humans when need more energy than oxygen breathed in.

  • Alcoholic FermentationYeast is used in alcoholic fermentation. Energy is produced without oxygen.

  • Lactic Acid FermentationLactic Acid occurs when you exercise strenuously and are unable to breathe in enough oxygen.Lactic acid causes the muscles to hurt.