2The sun provides almost all the energy used by living things on Earth.
3The process by which a cell captures the energy in sunlight and uses it to make food is called photosynthesis.
4Chlorophyll and the other pigments capture light energy and use it to power the second stage of photosynthesis.
5The cell needs two raw materials for the second stage: water (H2O) and carbon dioxide (CO2). At the end of photosynthesis, one of the products of the reactions is oxygen (O2)the other product is sugar in the form of glucose (C6H12O6).
66 CO2 + 6 H2OCarbon dioxide + watersunlightchlorophyllC6H12O6 + 6 O2Glucose + oxygenThis is the equation for photosynthesis. You need to know both the words and the chemical formula.
11The products of respiration are carbon dioxide and water.
12C6H12O6 + 6 O2Glucose + oxygen6 CO2 + 6 H2O + ATPCarbon dioxide + water + energymitochondriaInsideThis is the equation for respiration. You need to know both the words and the chemical formula.
13What do you notice about Photosynthesis6 CO2 + 6 H2OCarbon dioxide + watersunlightchlorophyllC6H12O6 + 6 O2Glucose + oxygenWhat do you notice aboutthese two equations??C6H12O6 + 6 O2Glucose + oxygen6 CO2 + 6 H2O + ATPCarbon dioxide + water + energymitochondriaInsideRespiration