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HS-LS1-7

Page history last edited by Megan Cannon 4 years, 6 months ago

HS-LS1-7 From Molecules to Organisms: Structure & Processes
Students who demonstrate understanding can: 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 a net transfer of energy.
Clarification Statement: Emphasis is on the conceptual understanding of the inputs and outputs of the process of cellular respiration. Examples of models could include diagrams, chemical equations, conceptual models, and/or laboratory investigations.
Assessment Boundary: Assessment should not include identification of the steps or specific processes involved in cellular respiration (e.g. glycolysis and Kreb’s Cycle).
Crosscutting Concepts	Science & Engineering Practices	Disciplinary Core Ideas
Energy and Matter: Energy cannot be created or destroyed—it only moves between one place and another place, between objects and/or fields, or between systems.	Developing and Using Models: Modeling in 9–12 builds on K–8 and progresses to using, synthesizing, and developing models to predict and show relationships among variables between systems and their components in the natural and designed worlds. Use a model based on evidence to illustrate the relationships between systems or between components of a system.	Organization for Matter and Energy Flow in Organisms: (Builds on HS-LS1-6) 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.