Search results for: “system”
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Evolution of Caffeine
In this activity, students access a database called UniProt that provides information about protein sequences derived from genome sequencing. Students search for the protein sequences of three plants that produce caffeine, Camellia sinensis, Coffea arabica, and Theobroma cacao (tea, coffee, and cocoa). They compare the protein sequences to determine if the gene to create caffeine arose independently…
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Biological Magnification
This article discusses how toxic substances accumulate in top predators in an ecosystem, a phenomenon called biological magnification. This accumulation can have dire effects on those populations and can threaten the entire species with extinction. Students read background information on mercury and DDT and how those toxins are measured in PPM (parts per million). A…
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The Calvin Cycle
TED-ED video on the Calvin Cycle explains how the cycle works to create glucose. Students complete questions and label a diagram of the Calvin Cycle.
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Frog Anatomy Label
This worksheet is a supplement to the frog dissection activity where students examine a preserved specimen. The main structures of the abdominal cavity are shown on this image and students practice identifying them using the included word bank. ( The worksheet could be modified to not include it should students need a greater challenge. )…
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Brain Crossword
Students can practice their knowledge of the brain by completing this crossword puzzle. The puzzle includes information about the lobes of the brain (frontal, occipital, parietal, and temporal) as well as specific structures within the brain and their function. The terms are intended for students of anatomy and physiology, where they must explore details of…
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Practice with Taxonomy
Though Next Generation Science Standards does not emphasize the memorizing of major groups anymore, students can benefit from learning the basics of how animals are classified. Taxonomy is often introduced with evolution, where students learn how to analyze phylogenetic trees and create cladograms. This worksheet is a simple reinforcement exercise that covers the six kingdoms…
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Label Steps of DNA Replication
For freshman, DNA replication is only covered in basic terms, where students are told that the process is semi-conservative and leads to the production of two new identical strands. AP Biology students are required to learn te steps of DNA replication and the roles that enzymes like DNA polymerase, helicase, and ligase, play in the…
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Human Population Growth
Students graph population estimates for years ranging from 1650 to 2012. The graph will show an exponential growth curve which students analyze to determine how frequently the population doubles. Students also explore the concepts of carrying capacity and growth rates. Questions ask students to discuss what happens when the earth exceeds its carrying capacity and…
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Modeling Osmosis
This basic lab uses Deco-cubes to show how they change in size when soaked in salt water, distilled water, and tap water.
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Anatomy and Physiology Lesson on Tissues
Phenomenon based unit where students examine the case of a child with the epidermolysis bullosa.
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Reinforcement: Cell
This is a practice worksheet for students who are learning structures found in the cell. A list of terms can be matched with descriptions and definitions. The same terms can be used to label a diagram of an animal cell. I use reinforcement worksheets for review or remediation. I will give students 10 minutes to…
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Investigation: Model Enzyme Activity with Toothpicks
Use toothpicks to model enzymes. Explore substrate and enzyme concentrations by changing toothpick numbers. Model competitive inhibition by taping fingers.
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Exploration: An Inquiry Activity on the Dubia Roach
A short activity for day one in the science class. Give students a live animal to observe, like a dubia roach. They write observations, questions, and make inferences to share with the class.
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Genetics: Sexy Chickens
This worksheet was designed for advanced students of biology or for honors students who are ready for an extra challenge. Birds have a ZW sex determination system instead of the XY system seen in humans. If your students have a good grasp on sex-linked traits in humans, then this scenario is a way to really…
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Label and Color the Kidney
This worksheet has a very simplified view of a kidney showing the cortex, renal pyramids, renal artery and vein, renal pelvis, and ureter. Students can practice labeling the structures and color coding the diagram. This worksheet was designed for a high school anatomy and physiology class and complements two other labeling and coloring worksheets: urinary…