SPIRALS OUT Overview of Photosynthesis Page 57 Regents

SPIRALS OUT: Overview of Photosynthesis (Page 57) Regents Biology 2006 -2007

Photosynthesis Goal: • Name organelles, elements, & the equation for photosynthesis Regents Biology 2006 -2007

Cell Membranes helps cell maintain homeostasis IN - Food/Reactants OUT – Waste/Products Regents Biology

Plants use light energy from the Sun to make glucose & ATP u In the form of chemical energy u sun ATP sugars Regents Biology

Photosynthesis: a process by which a cell captures energy in sunlight and uses it to make sugar (food) & energy. Organisms that photosynthesis are Autotrophs/Producer Regents Biology 2006 -2007

Structures Reactants Products • Sunlight through chloroplast • Glucose (sugar) (ENERGGYY) leaves • CO 2 through • O 2 (oxygen) stomata through stomata • H 2 O (water) through roots • H 2 O (water) through stomata • Plants store the sugar in their structures (stem, leaves, roots) shoot roots + + light O 6 + 6 Ois 2 6 CO O + the Chemical C 6 H 12 equation Brainstorm 2 + 6 H 2 what energy Regents Biology

G lucose Product Reactant Regents Biology ATP Produc (energy) t

Chloroplast- Is the organelle responsible for photosynthesis, located inside the middle layer of leaf Thylakoid Granum Stroma (inner space) Regents Biology

Structures/Function § Stomata – hole created by guard cells located on the underside of a plant’s leaf § Guard cells - curved cells that open/close guard cells the stomata which helps bring in reactants and releasing products (homeostasis) Stomata Regents Biology

Equation for Photosynthesis ATP 6 CO 2 + 6 H 2 O + light C 6 H 12 O 6 + 6 O 2 energy carbon sun + water + glucose + oxygen energy dioxide Regents Biology

Critical Question: List the products and reactants of photosynthesis Regents Biology 2006 -2007

Leaf Diagram – DO NOT CUT ANYTHING OUT YET 1. Read the 5 arrows and identify if the sentence is describing a reactant or a product of photosynthesis 2. Then color • Reactants Arrows Orange • Products Arrows Yellow 3. Color all the remaining structures logically Regents Biology

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Leaf Diagram Add a picture for Energy - Fill in the blank (arrow) with the proper term - cut and glue the arrows to point to the proper location of where each description is happening Regents Biology

Regents Biology

Using light & air to grow plants § Photosynthesis using sun’s energy to make ATP u using CO 2 & water to make sugar u HAPPENS in chloroplasts u (ATP) = used to build the sugar carbon sun + water + energy glucose + oxygen dioxide 6 CO 2 + 6 H 2 O + sun C 6 H 12 O 6 + 6 O 2 energy Regents Biology

What do plants need to grow? § The “factory” for making energy & sugars u sun chloroplast Make ATP! Make sugar! I can do it all… § Fuels CO 2 sunlight u carbon dioxide u water u § The Helpers u enzymes Regents Biology H 2 O ATP enzymes sugars

Chloroplasts are only in plants plant cells animal cells Regents Biology

How are they connected? Respiration glucose + oxygen carbon + water + energy dioxide C 6 H 12 O 6 + 6 O 2 6 CO 2 + 6 H 2 O + ATP Photosynthesis carbon sun + water + glucose + oxygen energy dioxide 6 CO 2 + 6 H 2 O + light C 6 H 12 O 6 + 6 O 2 energy Regents Biology

Energy cycle sun Photosynthesis plants CO 2 glucose H 2 O sugars animals, plants Cellular Respiration The Great Circle of Life! Regents Biology Mufasa? ATP O 2

The poetic perspective § All of the solid material of every plant § was built out of thin air All of the solid material of every animal was built from plant material air Regents Biology Then all the cats, dogs, mice, people & elephants… are really strands of air woven together by sunlight! sun

All LIVING organisms need energy! Organisms get energy directly or indirectly from sunlight in a process called photosynthesis u In your table (Groups of 2 -3) come up with a definition for Photosynthesis Regents Biology