Photosynthesis & Cellular Respiration

Terms to know: Reactants- these are the substances needed for the reaction to take place Products- these are the substances produced during the reaction Equation- a written representation of a chemical reaction that separates the reactants and products

Discovery of Photosynthesis: Look for: How photosynthesis was discovered. http://www.neok12.com/php/watch.php?v=zX425c515e42660904500606&t=Photosynthesis

What is Photosynthesis? The process of photosynthesis in which plants change carbon dioxide, water, and sunlight to glucose.

WORD EQUATION

SYMBOL EQUATION REACTANTS PRODUCTS

Photosynthesis Description: Carbon dioxide (CO2), water (H2O), and sunlight enter the leaves through holes called stomata. These substances are moved through the plants in tubes called xylem and phloem. Takes place in the chloroplasts using chlorophyll, the green pigment in plants. Occurs in plants and some algae.

Photosynthesis Description (cont) Plants need light energy, CO2, and H2O; these are the reactants Plants produce glucose (sugar) and oxygen; these are the products

Assignment- Due Thursday Please choose one of the following- An acronym describing photosynthesis. A poem describing photosynthesis. A song describing photosynthesis.

Acronym- Produces oxygen Light energy is used All plants Needs carbon dioxide Transported food is done in the phloem

Poem- http://meg-sci-lpenhs. blogspot Provides basic source of energy, organisms depend on this virtually, in making food this is a need, known as photosynthesis indeed. one of the most important biochemical processes, usually occurs in plant leaves and stems, a structure in the cells known as chloroplast, this is where photosynthesis ends and starts.

Song- http://www.educationalrap.com/song/photosynthesis.html Chorus Photosynthesis, let’s get into this Discussion of sunlight, and transfer of energy. Photosynthesis, let’s get into this Process of chemical reactions and synergy. Verse I Plants take water, sun, and CO2, to make glucose: the sugar that they use for food They also put oxygen into the air So we can share, because oxygen is everywhere The energy transforms from solar to chemical All the time, everywhere, the process is identical In every plant, and every tree Enabling all living things to be

Cellular Respiration Video: Listen for: How cellular respiration gets its name. The two molecules that combine in the process. http://www.neok12.com/php/watch.php?v=zX787d585f475a015b5c7c06&t=Photosynthesis

Describe Cellular Respiration The breakdown of glucose molecules to release energy Takes place in all living things

Glucose + Oxygen  Carbon Dioxide + Water + ATP WORD EQUATION Glucose + Oxygen  Carbon Dioxide + Water + ATP Energy

SYMBOL EQUATION C6H12O6 + 6O2  6CO2 + 6H2O + ATP REACTANTS PRODUCTS

Describe Cellular Respiration? The food (glucose) is broken down to give each organism energy. This process is cellular respiration. This process occurs in the mitochondria.

Description of Cellular Respiration Organisms need glucose and oxygen; these are the reactants. Organisms produce CO2, H20, and ATP; these are the products

Assignment- Due Friday Complete the recipe card describing cellular respiration

Exit Slip: Answer must be written in a complete sentence (capital letter, punctuation mark, and must make sense). How are the processes of photosynthesis and cellular respiration related?

Learn more about photosynthesis at: http://www.ftexploring.com/me/photosyn1.html

Read how photosynthesis & respiration are related: http://www.usoe.k12.ut.us/curr/science/sciber00/8th/energy/sciber/photosyn.htm

Why is this important to us? We cannot make our own food (glucose), we must get our food from plants. Plants are the first step in the food chain. The oxygen released during photosynthesis is necessary for all living things.