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Subject: Biology
Grade Level: 10th Grade
Unit Title: Unit 4-Energy In Living Systems
Big Idea/Theme: Energy in Living Systems
Timeframe Needed for Completion:
3 weeks (on a 90 min per day block schedule)
Grading Period: 2nd Nine Weeks
Understandings: This unit focuses on energy on the cellular level as well as its movement through living systems. In particular, this unit
focuses on the uses of energy and the reactions associated with its conversion.
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Specifically, students will gain an understanding of:
how homeostasis can be maintained within a living system
ATP as a source of energy
the structure of enzymes as it relates to enzymes’ ability to function
how enzymes influence biochemical reaction
the reactants and products associated with aerobic respiration, anaerobic respiration (lactic acid and alcoholic fermentation) and
photosynthesis
investigations associated with bioenergetic reactions with emphasis on factors that affect the rate of reactions
the carbon cycle as it relates to photosynthesis and respiration
Nitrogen cycle and its importance to synthesis of proteins and DNA.
Entropy
the energy efficiency comparison of aerobic and anaerobic respiration
the flow of energy as well as the efficiency of energy transfer within ecosystems
Compare structure and functions of Carbohydrates, Proteins, Lipids, and Nucleic Acids as related to survival of living organisms
Essential Questions:
1) What factors can affect the rate of cellular respiration and
photosynthesis?
2) How do organisms maintain equilibrium (homeostasis)?
Curriculum Goals/Objectives (to be assessed at the end of the
unit/quarter)
Bio.1.2 Analyze the cell as a living system.
Bio.1.2.1 Explain how homeostasis is maintained in the cell and within an
organism in various environments (including: temperature and pH).
Bio.2.1 Analyze the interdependence of living organisms within
their environments.
Bio.2.1.1 Analyze the flow of energy and cycling of matter (water, carbon,
nitrogen and oxygen) through ecosystems relating the significance of each to
maintaining the health and sustainability of an ecosystem.
Bio.4.1 Understand how biological molecules are essential to the
survival of living organisms
Bio.4.1.1 Compare the structures and functions of the major biological
molecules (carbohydrates, proteins, lipids, and nucleic acids) as related to the
survival of living organisms.
Bio.4.1.3 Explain how enzymes act as catalysts for biological reactions.
Bio 4.2 Analyze the relationships between biochemical processes
and energy use in the cell.
Bio.4.2.1 Analyze photosynthesis and cellular respiration in terms of how
energy is stored, released, and transferred within and between these systems.
Bio.4.2.2 Explain ways that organisms use released energy for maintaining
homeostasis (active transport).
Essential Skills/Vocabulary:
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Investigate and analyze the cell as a living system
Investigate and describe the structure and function of enzymes
and explain their importance in biological systems.
Analyze bioenergetic reactions (aerobic, anaerobic respiration,
photosynthesis)
Analyze and compare the flow of energy and cycling of matter
throughout an ecosystem.
Analyze the Nitrogen Cycle
Understand Entropy
Materials Suggestions:
1. Food Webs Activity online:
http://www.gould.edu.au/foodwebs/kids_web.htm
Assessment Tasks:
1. Paperase- The enzyme that could
2. Think-pair-share activity on characteristics of enzymes
3. Park Bench Model of Enzyme Activity
4. Cellular Respiration Lab
5. Fermentation Lab
6. ATP Cartooning Activity
7. Enzyme Cards Activity
8. Food Webs Online Activity
9. The Great Pyramids Worksheet
10. Photosynthesis and Cellular Respiration Review
Questions/Quiz
11. Class Scape Unit 4 Test
12. Enzyme Lab
13. Lets Make a Deal
14. Jist on Enzymes