Category: Cell Biology

  • McMush Lab

    McMush Lab

    I designed this investigation for AP biology though it could be modified to work with students in introductory biology classes.  First students learn the four macromolecules important to life: carbohydrates, lipids,  proteins, and nucleic acids. They can then venture into the lab where they use indicators to test for the presence of these molecules in…

  • Investigation: Properties of Water (with Stats)

    Investigation: Properties of Water (with Stats)

    This investigation asks students to review the properties of water as they relate to life, usually a topic covered in the first or second chapter of most biology textbooks.   Students then perform an experiment where they test the number of drops that can be placed on penny and compare that test to drops that…

  • Case Study:  Can a Virus Cause Diabetes?

    Case Study: Can a Virus Cause Diabetes?

    This case asks students to examine data on children diagnosed with Type 1 Diabetes after reading a short story about a young girl who was losing weight and feeling thirsty.  The content looks at a possible connection between diabetes and infection by the coxsackie virus, a virus that is responsible for “hand, foot, and mouth”…

  • Cell City

    Cell City

    This popular activity asks students to read a story about a fictional town where each part of the city is compared to the parts of a cell.   For example:  “Widgets are generally produced in small shops around the city, these small shops can be built by the carpenter’s union (whose headquarters are in town hall.)”   In this…

  • Investigation: Comparing Plant and Animal Cells

    Investigation: Comparing Plant and Animal Cells

     This simple investigation asks students to view cells under the microscope and compare differences between plant and animal cells.   Students are instructed in the procedure for removing the epithelial cells of an onion and staining with iodine.  These cells are fairly easy to see and most beginning students will have no trouble locating the…

  • Feedback Loops: Insulin and Glucagon

    Feedback Loops: Insulin and Glucagon

    The Next Generation Science Standards includes feedback loops and homeostasis as a standard for life science.  While homeostasis is a theme for many units in biology, feedback mechanisms are fairly specific.  In fact, this is probably the most oddly specific topic found in NGSS.   If you are trying to include it, most younger students…

  • Investigation:  Why Are Cells So Small?

    Investigation: Why Are Cells So Small?

    This activity requires students to practice math skills by measuring the surface area and the volume of boxes.   Collect boxes for students to use, these can be any type of box, such as tissue boxes, food boxes, or shoe boxes.  Ideally, you want a range of sizes, with at least one box being overly…

  • Color the Cellular Structures of the Ameba

    Color the Cellular Structures of the Ameba

    This worksheet describes the structures of the unicellular protist known as the ameba.  Though NGSS standards do not require units on protozoans, this can still be a useful exercise for examining how structure relates to function and how single-celled organisms move, consume food, and reproduce. What is the amoeba? An amoeba is a type of…

  • Color a Typical Prokaryote Cell

    Color a Typical Prokaryote Cell

    This worksheet is similar to the animal cell coloring and the plant cell coloring, where the focus is on structures found in the cell and how those structures relate to the cell’s function. Students read a short passage about prokaryotes and the two kingdoms of bacteria: archaeabacteria and eubacteria.   The passage includes information about…

  • Meiosis Case:  SRY not SRY

    Meiosis Case: SRY not SRY

    Students are given a scenario about a female athlete who was stripped of her medal when it was discovered that her cells contain a Y chromosome.

  • Investigation:  Bacteria

    Investigation: Bacteria

    This investigation asks students to take samples from the school and grow bacteria on agar plates.  Students learn to use sterile technique to transfer and stain the bacteria and view under a microscope.   Lab guide includes instructions for how to analyze and compare colonies and identify the three shapes of bacteria:  bacillus, cocci, and…

  • Activity:  Which Disease Is the Worst?

    Activity: Which Disease Is the Worst?

    In this activity, students work in groups to read about different types of diseases and ultimately rank them from the least dangerous to the most dangerous.   There is no actual right answer to this, and the cards are designed to foster discussion and provide a basic overview of the types of pathogens that cause…

  • Mitosis Coloring

    Mitosis Coloring

    Students read about each of the phases of the cell cycle and label and color a diagram that shows details of  interphase, prophase, metaphase, anaphase, and telophase.    Students must also label cell structures like the centrioles, aster, spindle, and nuclear membrane. This worksheet can be used as reinforcement for a lesson on mitosis and…

  • How Mitochondria Produce Energy for the Cell

    How Mitochondria Produce Energy for the Cell

    This worksheet is intended for basic biology students to learn how cellular respiration provides energy for the cell.  Students color a mitochondrion which shows how the inner membrane is folded into cristae and indicates that mitochondria are organelles that have their own DNA.   Finally, students examine the equation for respiration and compare it to…

  • Photosynthesis Lab – How Light Color Affects Growth

    Photosynthesis Lab – How Light Color Affects Growth

    A virtual simulator that shows how plant growth changes in response to the color of light. Students measure the heights of plants grown under different colors.