HS-LS1-6 From Molecules to Organisms: Structure & Processes
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Students who demonstrate understanding can: Construct and revise an explanation based on evidence for how carbon, hydrogen, and oxygen from sugar molecules may combine with other elements to form amino acids and/or other large carbon-based molecules. |
Clarification Statement: Emphasis is on students constructing explanations for how sugar molecules are formed through photosynthesis and the components of the reaction (i.e., carbon, hydrogen, oxygen). This hydrocarbon backbone is used to make amino acids and other carbon-based molecules that can be assembled (anabolism) into larger molecules (such as proteins or DNA).
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Assessment Boundary: Assessment does not include the details of the specific chemical reactions or identification of macromolecules.
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Crosscutting Concepts
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Science & Engineering Practices
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Disciplinary Core Ideas
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Energy and Matter:
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Constructing Explanations (for science) and Designing Solutions (for engineering):
- Constructing explanations and designing solutions in 9–12 builds on K–8 experiences and progresses to explanations and designs that are supported by multiple and independent student- generated sources of evidence consistent with scientific ideas, principles, and theories.
- Construct and revise an explanation based on valid and reliable evidence obtained from a variety of sources (including students’ own investigations, models, theories, simulations, peer review) and the assumption that theories and laws that describe the natural world operate today as they did in the past and will continue to do so in the future.
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Organization for Matter and Energy Flow:
- (Builds on HS-LS1-5)The sugar molecules thus formed contain carbon, hydrogen, and oxygen: their hydro- carbon backbones are used to make amino acids and other carbon-based molecules that can be assembled into large molecules that can be assembled into large molecules (such as proteins or DNA), used for example to form new cells.
- As matter and energy flow through different organization levels of living systems, chemical elements are recombined in different ways to form different products.
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ntroduction to the OKSci Framework
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