Lesson 2: PHOTOSYNTHESIS
Duration of Days: 4
Lesson Objective
LP 6.2:
I can select and use appropriate equipment and techniques to plan an investigation to explain the cycling energy and matter through the process of photosynthesis.
How do plants grow?
What inputs can you change to make a plant grow better?
What happens to the sugar that is made?
HS-LS1-5
Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.
HS-LS1-2
Construct and revise an explanation based on evidence for how C, H, & O from sugar molecules may combine with other elements to form amino acids and/or other large carbon-based molecules.
HS-LS1-7
Use a model to illustrate that cellular respiration is a chemical process whereby the bonds of food molecules and oxygen molecules are broken and the bonds in new compounds are formed resulting in the net transfer of energy.
HS-LS2-5
Develop a model to illustrate the role of photosynthesis and cellular respiration in the cycling of carbon among the biosphere, atmosphere, hydrosphere, and geosphere.
HS-LS2-3
Construct and revise an explanation based on evidence for the cycling of matter and flow of energy in aerobic and anaerobic conditions.
Understanding complex biological processes like photosynthesis and cellular respiration involves synthesizing information from multiple sources, making inferences, and applying scientific concepts to problem-solving. These skills are directly related to the SAT's emphasis on reading comprehension, data analysis, and critical thinking, where students are required to analyze and interpret scientific information and apply it to new scenarios.
LS1.C: Organization for Matter and Energy Flow in Organisms
The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.
As matter and energy flow through different organizational levels of living systems, chemical elements are recombined in different ways to form different products.
As a result of these chemical reactions, energy is transferred from one system of interacting molecules to another. Cellular respiration is a chemical process in which the bonds of food molecules and oxygen molecules are broken and new compounds are formed that can transport energy to muscles.
Cellular respiration also releases the energy needed to maintain body temperature despite ongoing energy transfer to the surrounding environment.
LS1.A: Structure and Function
Multicellular organisms have a hierarchical structural organization, in which any one system is made up of numerous parts and is itself a component of the next level.
LS2.B: Cycles of Matter and Energy Transfer in Ecosystems
Photosynthesis and cellular respiration (including anaerobic processes) provide most of the energy for life processes.
Photosynthesis and cellular respiration are important components of the carbon cycle, in which carbon is exchanged among the biosphere, atmosphere, oceans, and geosphere through chemical, physical, geological, and biological processes.
PS3.D: Energy in Chemical Processes
The main way that solar energy is captured and stored on Earth is through the complex chemical process known as photosynthesis. (secondary)
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