Photosynthesis and Cellular Respiration How do we obtain

Photosynthesis and Cellular Respiration

How do we obtain our energy? Animals? ? Plants? ?

Photosynthesis Greek Words Photo: light Synthesis: to put together/composition What biotic organism requires light to put things together (for energy)?

Photosynthesis A process used to convert the Sun’s energy into chemical energy, stored in glucose Occurs in plants and some microorganisms This process takes place in the chloroplast, using the chemical called chlorophyll

Equation for Photosynthesis H 2 O molecules from soil are absorbed into the plant along with carbon dioxide gas In the presence of light, this CO 2 and H 2 O combine to form glucose O 2 is a by-product

Animation http: //www. pbs. org/wgbh/nova/nature/photosynthesis. h tml

Cellular Respiration Definition Cellular: of, relating to, or consisting of living cells Respiration: the process in which living organisms produce energy

Cellular Respiration A process that releases usable energy from the chemical energy stored in “food” molecules (simply put as glucose) Occurs in both plants and animals Happens in the organelle called “mitochondria”

Equation for Cellular Respiration Glucose breaks down to release energy as ATP which supplies our energy needs to function Water and carbon dioxide are created as by-products

Animation http: //www. sumanasinc. com/webcontent/animations/co ntent/cellularrespiration. html