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Photosynthesis & Respiration The Big Picture
Photosynthesis 6CO 2 + 6H 2 O + Light C 6 H 12 O6 + 6O 2 Six molecules of carbon dioxide plus six molecules of water plus light yields one molecule of glucose plus six molecules of oxygen.
Respiration C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + Energy One molecule of glucose plus six molecules of oxygen yields six molecules of carbon dioxide plus six molecules water plus energy.
The Big Picture These two processes form a cyclic relationship. Out puts (waste) of one are the inputs (resources) of the other.
The Big Picture Nature has developed this circular mechanism for trapping the energy from the sun and converting it into the chemical energy that fuels all food chains in the biosphere.
1 st and 2 nd Laws of Thermodynamics How are these two laws relevant to these two processes?
1 st Law of Thermodynamics Energy is continually being passed from light energy to chemical energy to mechanical energy to heat energy. Never created or destroyed. Constant transformation.
2 nd Law of Thermodynamics Energy being passed on is not 100% efficient. Some energy is being lost with every transformation and transfer. Think of the different trophic levels.
Energy Flow Through an Ecosystem
Energy in Cells Photosynthesis Vs Cellular Respiration.
Biological systems need energy! To do work Chemical activities Growth Movement Reproduction Repair ? Stored in CHEMICAL BONDS.
Photosynthesis and Respiration
Photosynthesis Vs. Respiration
Biochemical Pathways A series of chemical reactions
Photosynthesis & Respiration
Photosynthesis Section: 2.3.
to the tune of “Jingle Bells”
Photosynthesis and Cellular Respiration
7.1 Sunlight Powers Life. Autotrophs/Producers An organism which makes its own food. An organism which makes its own food. Example: Plants perform photosynthesis.
Chemistry and Matter Review. What is Matter? Matter- anything that has mass and takes up space. Everything in the world is made of matter.
Ultimate Chemical Reactions Mr. King 6,7 & 8th Science.
Energy in Ecosystems. The Flow of Energy The energy in ecosystems does not flow in cycles like matter does -such as nitrogen, water, carbon - but flows.
Ecosystems and Energy Chapter 3. Ecology Study of the interactions of organisms and their living and non-living environment Many different scales to ecology.
How Do Cells Get Energy? All living things need energy
What powers a cell? LightPhotosynthesis experiments showed us that Light is used by plants as the energy to synthesize Glucose. And we know ATP the source.
Metabolism What is metabolism? What is metabolism? The sum of all chemical reactions occurring in the body. The sum of all chemical reactions occurring.
Photosynthesis and Cellular Respiration. Photosynthesis Definition: process in which plant cells convert the energy from sunlight into chemical energy.
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