Search results for: “system”
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How Do Viruses Infect Cells (Coloring)?
A simple worksheet that explains how viruses infect cells which include diagrams to label and an image of a typical virus for students to color the envelope, proteins, DNA, and the capsid.
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Cell Membrane Captions
Students examine images of transport across the cell membrane and identify key features such as the phospholipid bilayer, channel proteins, and receptors. Students then provide a title, such as “osmosis” and create a caption that describes the process being shown.
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Cells Alive Worksheet
This worksheet follows diagrams and activities at CellsAlive.com which focuses on the size of cells compared to other objects, such as viruses and pollen. Students view interactive plant, animal, and bacteria cells to learn about the different structures associated with each.
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Investigation: The Effect of Salt on a Potato
Students observe how the mass of a potato slice changes when soaked overnight in salt water. The activity is intended to be done as part of a lesson on osmosis and hypertonic and hypotonic solutions. Students will need about 15 minutes to set up their cups, weigh their slices and make predictions about what they…
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Investigation: Exploring Cells
While biologists might find the history of the cell theory fascinating, I notice that many of my students seem to tune-out when you bring up the history of scientific discoveries. In order to save time and improve engagement, I created this lab to include a short history of the cell theory as students explore prepared…
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Investigation: How Do Enzymes Work?
This lab is fairly basic, but when given with guided instruction how enzymes catalyze reactions, students can have a hands-on experience into how proteins are related to function.
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Investigation: How Can Diffusion Be Observed?
This investigation provides a hands-on way to observe what happens when a chemical moves across a semipermeable membrane. In this case, a cheap plastic bag serves as a model for the cell membrane and shows that iodine will move into the bag and turn the contents purple.
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Create a Concept Map of Biomolecules
This activity asks students to work in groups to create a concept map (graphic organizer) on the biological macromolecules: carbohydrates, lipids, fats, and nucleic acids. Students are given brief instructions and a sample map to get them started, but they are responsible for determining what details are important in each section.
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Color the Connective Tissue Matrix
This worksheet was designed for anatomy and physiology students to compliment a lesson on the body tissues. This coloring exercise is not intended to take very long and is mostly to help students gain an appreciation for the complexity of the matrix. The entire unit, which includes google slides and other resources can be seen…