PHOTOSYNTHESIS

Photosynthesis What we know - Producers are organisms that produce their own food. Green plants are producers – they convert sunlight into energy (food). IN YOUR NOTEBOOK list some green plants. Are green plants only located on land? List some green plants that are found under water. Do they carry out photosynthesis? Radiant Energy

Photosynthesis What we are learning today- Photosynthesis is a chemical reaction, where radiant energy from the sun reacts with water and carbon dioxide to form chemical energy. Radiant Energy is required for the chemical process to take place.

Carbon dioxide and water are the “ingredients” for photosynthesis, and sugar (glucose) is formed, along with oxygen. The plants use these products (glucose and Oxygen) to produce food and energy or will store them for later use. Carbon dioxide 6 CO 2 Water 6 H 2 O Radiant energy (sunlight) + Glucose C 6 H 12 O 6 Oxygen 6 O 2 +

Photosynthesis carbon dioxide (CO 2 ) Radiant (Light) energy water (H 2 O) organic (glucose).A process that requires carbon dioxide (CO 2 ) and uses Radiant (Light) energy and water (H 2 O) to produce organic (glucose). RE C 6 H 12 O 6 6CO 2 + 6H 2 O + RE  C 6 H 12 O 6 + 6O 2 Organic glucose SUN photons

In your notebook draw the leaf Use the formula to explain the Process of photosynthesis Label what goes in and what comes out of the leaf What is the leaf making? Will the leaf use the product immediately or will it be used later?

Where does this all happen? To answer this first you must think –Which part of the plant is usually green? How does Carbon dioxide and water get into that plant part? How does Radiant energy get captured?

Plants Autotrophs:Autotrophs: self-producers. Location: 1.Leaves a.stoma b.guard cells Guard Cell Chloroplast Stoma

Questions: How does Radiant energy get captured by the leaf?How does Radiant energy get captured by the leaf? Where does photosynthesis take place?Where does photosynthesis take place?

Chloroplast Draw a chloroplast organelle in your notebook

Chloro plast Organelle (or a pocket) photosynthesisOrganelle (or a pocket) where photosynthesis takes place. Contains Chlorophyll –Absorbs Radiant (light) Energy Chlorophyll Outer Membrane Inner Membrane

Question: Why are plants green?Why are plants green?

Chloro phyll Molecules Chlorophyll pigments absorbingwavelengths blue-420 nmChlorophyll pigments (COLOR) absorb energy (photons) by absorbing certain wavelengths (blue-420 nm and red-660 nm are most important). Plantsgreen wavelengthreflectednot absorbedPlants are green because the green wavelength is reflected, not absorbed.