In this visualization adapted from the University of Massachusetts Medical School, discover the role that dengue viral proteins play in a human cell as the virus prepares to replicate.

Students make edible models of algal cells as a way to tangibly understand the parts of algae that are used to make biofuels. The molecular gastronomy techniques used in this activity blend chemistry, biology and food for a memorable student experience. The models use sodium alginate, which forms a gel matrix when in contact with calcium or moderate acid, to represent the complex-carbohydrate-composed cell walls of algae. Cell walls protect the algal cell contents and can be used to make biofuels, although they are more difficult to use than the starch and oils that accumulate in algal cells. The liquid juice interior of the algal models represents the starch and oils of algae, which are easily converted into biofuels.

An introduction to the structure of two different types of cells: eukaryotic and prokaryotic cells. [2:14]

Read a passage about our immune system and answer the follow-up questions.

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

In this video segment adapted from NOVA scienceNOW, hydrogen fuel cell cars promise pollution-free driving, but will we see them anytime soon?

While all cells have a great deal in common, there is no end to the variation among them. These images provide a sense of the wondrous diversity found in the world of cells.

Animated tutorial with captions shows how stem cells play many important roles in our bodies from conception through adulthood.

There is a lot of resistance to genetic modification and the use of genetically modified crops. What is the science? This unit helps to provide some background in cell function and DNA properties, helping students to understand how genetic modification can make a difference. The developments in biotechnology are highlighted and students create a marketing campaign for GMO’s. This unit features 6 lessons and 7 files. Lessons are aligned to NGSS.

Do your students struggle to understand the “central dogma” of biology? Are you looking for innovative teaching techniques? This unit is an integrated art and science project to teach transcription and translation, which is also known as “central dogma”. This process explains how sequences of DNA are interpreted by organelles in the cell and are expressed as specific proteins. It is a core idea in understanding molecular genetics. Students will create a three-paneled work of art that models the process of transcription and translation. Explicit instructions make this unit accessible to science teachers. This unit features 4 lessons and 15 files. Lessons are aligned to NGSS.

There is a lot of misinformation about what a GMO is and what foods are genetically modified. Use this unit as a review or a compelling way to engage students in the topic of GMOs using a “breakout,” an innovative science teaching and entertainment platform. This unit features 3 lessons and 8 files. Lessons are aligned to NGSS.

A lot of questions surround definitions of genetic modification. This unit models two different techniques of genetic modification and tries to help students understand the terms and the consequences of human intervention in food production. This unit features 3 lessons and 6 files. Lessons are aligned to NGSS.

Have you ever done a DNA extraction? Most DNA extractions are done with a known source and students can visualize DNA. The favorite items are strawberries or students’ own cheek cells. This unit shows what biotech scientists do next. This unit features 2 lessons and 3 files. Lessons are aligned to NGSS.

Students operate mock 3D bioprinters in order to print tissue constructs of bone, muscle and skin for a fictitious trauma patient, Bill. The model bioprinters are made from ordinary materials— cardboard, dowels, wood, spools, duct tape, zip ties and glue (constructed by the teacher or the students)—and use squeeze bags of icing to lay down tissue layers. Student groups apply what they learned about biological tissue composition and tissue engineering in the associated lesson to design and fabricate model replacement tissues. They tangibly learn about the technical aspects and challenges of 3D bioprinting technology, as well as great detail about the complex cellular composition of tissues. At activity end, teams present their prototype designs to the class.

This activity is a lab investigation is which students will design and conduct an experiment related to movement of materials through a cell membrane. Modified from a lab I received from a fellow teacher, Jeanne M. Reed.

The Genetics Student Edition book is one of ten volumes making up the Human Biology curriculum, an interdisciplinary and inquiry-based approach to the study of life science.

The Lives of Cells Student Edition book is one of ten volumes making up the Human Biology curriculum, an interdisciplinary and inquiry-based approach to the study of life science.

In this video segment from The Secret of Life Teaching Modules: "Nothing to Sneeze At: Viruses," watch as a virus attacks a cell, and learn how the immune system reacts to this onslaught.

In this video segment from The Secret of Life, watch as a virus attacks a cell, and learn how the immune system reacts to this onslaught. Includes background reading material and discussion questions. [1:40]

This is an introductory lesson on cells. Student learning begins with the teacher modeling the use of a T-chart graphic organizer while reading an article comparing simple and complex carbohydrates. Students then move to independent practice using the T-chart graphic organizer to compare simple (prokaryotic) cells and complex (eukaryotic) cells.

Students learn about the current applications and limitations of 3D bioprinting, as well as its amazing future potential. This lesson, and its fun associated activity, provides a unique way to review and explore concepts such as differing cell functions, multicellular organism complexity, and engineering design steps. As introduced through a PowerPoint® presentation, students learn about three different types of bioprinters, with a focus on the extrusion model. Then they learn the basics of tissue engineering and the steps to design printed tissues. This background information prepares students to conduct the associated activity in which they use mock-3D bioprinters composed of a desktop setup that uses bags of icing to “bioprint” replacement skin, bone and muscle for a fictitious trauma patient, Bill. A pre/post-quiz is also provided.