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How do living things get and use energy?

Teacher Resources

Learning Targets

Learning Experiences

56 I can build a model of AMP, ADP, and ATP and relate the amount of energy available to the number of phosphate bonds. (6) 57 I can collect and analyze data from an investigation to explain how energy is transferred and used in cells to power life processes. (6)

Students turn their attention to the process of cellular respiration, specifically its role in generating ATP, the energy “currency” of the cell. Students develop and use a simple model of an ATP molecule to discover energy is stored in the bonds between the phosphates and released when those bonds are broken. With this knowledge, students perform an experiment (or use existing data) that investigates various factors that affect the rate of cellular respiration.

Sample student experimentation options • Investigate the role of color in heat absorption using dark and light colored construction paper, thermometer or temperature probe, and a lamp. Tabulate and graph resulting data. Generalize this data to explain the role of photosynthetic pigments in plants in capturing energy from the sun. • Display variegated plants such as Coleus using actual plants or images. Prompt students to propose which portions of the leaf are able to “do photosyn- thesis.” Ask: Does this process only occur in the green area? Students design an experiment to verify their claim. • Investigate plant pigments using common pigment extraction activities. Alternatives include chromatography of pen ink as a model for pigment chromatography. Pigment extraction lab options included in the resource list. Picking out Pigments NMSI Laying the Foundation Lesson Design and conduct an experiment to test the affinity of certain pigments to specific solvents.

Factors that Affect Photosynthesis Alabama Science in Motion K7Factor

Students observe aquatic plants in solutions and use bubble counts or probeware to compare light intensity to rate of photosynthesis. bit.ly/AMSTI-ASIM Light, Dark, Does It Really Matter: Examining the Factors of the Light Reaction NMSI Laying the Foundation Lesson Students investigate factors that affect the light reaction of photosynthesis. They also model the process of the light reaction. Calvin Cycle: The Musical American Biology Teacher Using the theme to the Brady Bunch, students role play and sing along to the Calvin cycle. The emphasis is on visualizing carbon fixation, not on memorizing chemical equations. bit.ly/calvin-cycle

Teacher Resources

ATP Pop Gun EllenJMcHenry.com

Cricket Respiration NMSI Laying the Foundation Lesson This lesson provides the students an opportunity to investigate how changes in temperature affect respiration rates in crickets.

Using cardboard, paper template, and spring from a retractable pen, students create a toy that shoots phos- phate groups. bit.ly/ATP-Pop-Gun Paper ATP Model Instructions Students will construct a model of ATP along with an- swering questions that pertain to the structure and func- tion of ATP. bit.ly/Paper-ATP-Model

Yeast and Aerobic Respiration NMSI Laying the Foundation Lesson

Chromatography Alabama Science in Motion K6Chroma Learn the scientific technique of paper

Students will determine the concentration of molasses that will yield the greatest rate of fermentation by yeast cells. Students will make a hypothesis and then evaluate the validity of that hypothesis based on collected data.

chromatography and use it to separate a mixture of leaf pigments. Students will observe the pigments that give a leaf its color. bit.ly/AMSTI-ASIM

BioBeads Teacher Created

Yeast suspended in alginate will be used in student-designed respiration experiments. Sample teacher resources can be found at www.hudsonalpha.org/compendium

Yeast in Anaerobic Respiration Alabama Science in Motion G2Yeast

This lab uses yeast to demonstrate what happens during aerobic and anaerobic respiration. Students measure CO2 gas production in a fermentation tube. bit.ly/AMSTI-ASIM

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A Field Guide to the Alabama Standards

The Biology Compendium

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