Photosynthesis and Cellular Respiration

Photosynthesis What is it? In what type of cells does it occur? Energy in sunlight transferred to food(carbohydrate) In what type of cells does it occur? Plant Cells (all organisms that are photosynthetic) Where in the cell does it happen? Chloroplast

Inside a Chloroplast Thylakoid – Where the chlorophyll is located. Stacks of Thylakoids form Grana (Granum - 1) Where Light-Dependent Reactions happen. LDR – Needs Light and Water LDR – Gives off oxygen

Inside the Chloroplast Stroma – The region outside the Thylakoid membranes. Where the Calvin Cycle takes place. Calvin Cycle – Light – INdependent Reaction Calvin Cycle – Gives off Sugars

Carbon Dioxide + Water  Sugar + Oxygen PHOTOSYNTHESIS Consists of both the light-dependent and light-INdependent reactions. 6CO2 + 6H2O  C6H12O6 + 6O2 Carbon Dioxide + Water  Sugar + Oxygen

http://www. bing. com/videos/search http://www.bing.com/videos/search?q=Everything+About+Photosynthesis&&view=detail&mid=804BDBFE2B88B988E104804BDBFE2B88B988E104&FORM=VRDGAR

Cellular Respiration Food(carbohydrate) must be converted to a useful form of energy that the cell can use. That useful form is ATP (adenosine triphosphate) Cellular Respiration is the chemical process that makes ATP for cell energy needs

Cellular Respiration Involves 3 steps Glycolysis – Happens in the cytoplasm Kreb’s Cycle – Happens in the Mitochondrion Electron Transport Chain – Also happens in the Mitochondrion

Cellular Respiration Chemical equation for cellular respiration: C6H12O6 + 6O2  6CO2 + 6H2O Sugar + Oxygen  Carbon Dioxide + Water

Photosynthesis/Cellular Respiration Captures Energy (Sun) Happens in: Chloroplast Only Plants Cellular Respiration Releases Energy (Food) Happens in: Mitochondria Most living things, including plants.

Comparison Photosynthesis 6CO2 + 6H2O  C6H12O6 + 6O2 Carbon Dioxide + Water  Sugar + Oxygen (Energy IN) Cellular Respiration C6H12O6 + 6O2  6CO2 + 6H2O Sugar + Oxygen  Carbon Dioxide + Water (Energy OUT)

ATP Where does the transfer of energy to ATP take place in a cell? Mitochondria Do plant and animal cells have Mitochondria? Yes

http://www.youtube.com/watch?v=VCpNk92uswY

Glycol? http://www.youtube.com/watch?v=EfGlznwfu9U

Krebs w? http://www.youtube.com/watch?v=JPCs5pn7UNI

E.T. http://www.youtube.com/watch?v=DNReloT3QYU

Krebs http://www.youtube.com/watch?v=XG12CMszYLI