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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.
TOPIC 1 LESSON 5 The Laws of Thermodynamics (Energy Transfer and Efficiency) Syllabus Link Describe how the first and second laws of thermodynamics.
1 Photosynthesis and Cellular Respiration. 2 Photosynthesis is the anabolic pathway in which light energy from the sun is converted to chemical energy.
Energy flow in the Ecosystem. Energy 1 st law of thermodynamics – energy can not be created or destroyed, only transformed from one form to another.
Energy Flow in Ecosystems
Showing energy transfer among organisms (biosphere!)
Photosynthesis and Respiration Cell Processes and Energy.
Energy in Cells Photosynthesis Vs Cellular Respiration.
Photosynthesis Objective 2: The student will demonstrate an understanding of living systems and the environment. (7.8) Science concepts. The student knows.
Keystone Review Photosynthesis 1.A – Photosynthesis produce glucose, oxygen is not needed, but it is produced as a waste product. 2.B – Choices A, C, D;
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 Vs. Respiration
Photosynthesis and Cellular Respiration
Photosynthesis & Respiration. Photosynthesis The process is a chemical reaction.
Biochemical Pathways A series of chemical reactions
Chapter 3 Ecosystems: How They Work. Matter Matter Anything that has Anything that has Made of atoms of elements → molecules and compounds Made of atoms.
Photosynthesis and Cellular Respiration. Photosynthesis Definition: process in which plant cells convert the energy from sunlight into chemical energy.
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.
Photosynthesis Section: 2.3.
Processes in Plant & Animal Cells TEKS 7.5.A recognize that radiant energy from the sun is transformed into chemical energy through the process of photosynthesis.
Photosynthesis & Respiration
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