Photosynthesis Where energy comes from Photosynthesis Photosynthesis The
- Slides: 21
Photosynthesis Where energy comes from….
Photosynthesis Photosynthesis: The process that captures the sun’s energy to make food. Photo= “light” Synthesis=“putting together” Turns light energy into chemical energy
Chlorophyll is a chemical in chloroplasts that can absorb or trap light energy This is green pigment is found mostly in plant leaves
Atoms An atom is the basic unit of ALL living & non-living things Atoms are made of: Protons (+) Neutrons (no charge) Electrons (--)
Elements An element is a form of matter that is made of only 1 type of atom Elements are found on the periodic table & each has a different number of protons Examples: Carbon, Oxygen, Nitrogen, Hydrogen
Common Elements found in the Air, Ocean, Living Things, & the Earth’s Crust Element Name Chemical Symbol Calcium Ca Nitrogen N Hydrogen H Oxygen O Carbon C Silicon Si Aluminum Al Iron Fe Sodium Na Potassium K Magnesium Mg
Chemical Symbols Elements are represented using chemical symbols Examples: -Oxygen (O) -Hydrogen (H) -Carbon (C) -Calcium (Ca)
Compounds When two or more atoms of different elements combine this forms a compound. The letters represent the element name The number represents how many Examples: Water (H 2 O)
Photosynthesis Compounds Raw Materials: (What is needed) Products : (What is made) Sunlight /energy Sugar/Glucose (C 6 H 12 O 6) Water (H 2 O) Oxygen (O 2) Carbon Dioxide (CO 2)
Chemical Equation for Photosynthesis 6 H 2 O + 6 CO 2 + Light Energy C 6 H 12 O 6 + 6 O 2 Raw Material+ Raw Material = Products Chemical equations show things change in a chemical reaction.
How do these thing get to the plant? Water is taken in by the roots Carbon dioxide enters through stomata in the leaves
Photosynthesis at Work The sugar produced during photosynthesis stores energy for producers Oxygen is released as a waste product
Photosynthesis and food webs Energy is the basic need of all living things Photosynthesis is the base of the food web
Cellular Respiration The release of energy
How does food turn into energy? Food goes into your digestive system Once digested it enters your bloodstream Next it enters the cell through diffusion! Respiration occurs inside the cell using oxygen in both plants & animals!
Respiration Respiration: The process cells use to break down stored food energy (glucose). When glucose is broken down = energy is released
Respiration Compounds Raw Materials: (What’s needed) Products: (What’s made) Oxygen (O 2) Energy (ATP) Glucose (C 6 H 12 O 6) Carbon Dioxide (CO 2) Water (H 2 O)
Chemical Equation for Respiration C 6 H 12 O 6+ 6 O 2 6 CO 2+ 6 H 2 O+ Energy Raw Materials + Raw Materials = Products Does this look familiar?
Photosynthesis Video Respiration Video
Where do photosynthesis & respiration occur in the cell? Photosynthesis Chloroplast Cellular Respiration Mitochondria
- First comes love, then comes marriage
- Photosynthesis transforms light energy into chemical energy
- Energy energy transfer and general energy analysis
- Energy energy transfer and general energy analysis
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