Category: Cell Biology
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Investigation: Apples and Pectinase Enzyme
In this experiment, high school students will investigate the role of enzymes by testing the effects of pectinase on apples. The objective is to compare the amount of juice extracted from apples treated with pectinase to those left untreated. In addition, students change the temperature of the solutions to compare enzyme activity at cold and…
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Case Study – Understanding Lactose Intolerance
I made this case study for freshman level biology to complement Ch 2: The Chemistry of Life. Students review the structure of atoms and molecules, then learn about biomolecules and enzymes. This case study explores the human side of enzymes and proteins. Specifically looking at how humans have a special enzyme, lactase, to digest milk…
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Macromolecules Lab – Testing for Starch
Most biology textbooks have a chapter on macromolecules. In chapter 2 of our textbook, students learn about the chemistry of life, which includes the basics of atoms and molecules, properties of water, and carbon compounds. I generally include a food testing lab where students determine the macromolecules found in food. The lesson is engaging, informative,…
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Exploring Medication and Bioavailability
Bioavailability is a measure of the rate at which the active ingredient of a drug is absorbed and becomes available. It represents how much and how quickly a drug reaches the bloodstream. In this activity, student explore how medications dissolve in water (or other substances) and enter the blood stream. I created this lab to…
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Mitosis and Cancer – Data Analysis on Carcinogenesis
A group activity where students analyze images and charts to determine the relationship between mitosis and cancer.
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Reinforcement: Photosynthesis
This simple photosynthesis worksheet has a list of vocabulary words that students match to their definitions. Great for review and reinforcement!
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Label a Bacteria Cell
A short activity on bacteria cell form and function. Students label a diagram of a bacteria cell and answer questions.
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Use Beets to Explore Membrane Permeability
Students test the effects of pollution on membrane permeability using beetroot cores.
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Inquiry Lab on Photosynthesis and Respiration
Discover how plants produce oxygen and energy through photosynthesis, and witness cellular respiration as it consumes oxygen. Engage in hands-on experiments, measuring real-time changes in oxygen levels.
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Cellular Respiration Overview
Explore the intricacies of cellular respiration with this engaging worksheet designed for students. Covering glycolysis, the citric acid cycle, and the electron transport chain
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Enzyme and Substrate Concentrations
Students examine graphical models of enzyme and substrate interactions showing how the speed of reactions changes with concentration.
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Enzymes and Substrates – Coloring
A simple worksheet showing how enzymes bind to substrates to create products. Students color a graphic and answer questions.
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Interpreting Diagrams – Taurine and Aging (CER)
Students analyze a graph showing the effects of the amino acid taurine on aging. The data is from a primary source. Identify claim, evidence and reasoning.
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Investigation: Compare DNA from Different Samples
Students extract DNA from several samples of fruit, like strawberries and kiwi, and then discuss why some have more DNA than others.
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Observe Photosynthesis with this Easy Experiment
Use phenol red to observe plant photosynthesis. As plants consume carbon, the indicator will change from yellow to red. Materials are easy!