Acids and bases are substances that are able to give and receive hydrogen ions respectively. This seemingly insignificant ability gives rise to a wide range of reactions and is essential for many biological processes. This pathway provides resources related to acids and bases, the types of reactions they undergo, and the pH scale which is used to measure the concentration of hydrogen ions in a solution.

This pathway will show you how to use your dashboard to add or create your own content, and how to remix it into customized learning pathways.

To create HIV-resistant immune cells with the gene editing tool CRISPR-Cas9, a specific macrophage gene must be disrupted.

This pathway introduces the building block of all matter, the atom, and some of the key experiments that helped scientists discover the subatomic particles that give atoms their unique properties.

This pathway explores how physical features of a species can change over time in response to environmental factors influencing survival. Learn about well known case studies like Darwin's finches and peppered moths, and conduct your own investigations through simulations.

This pathway explores how structural and molecular evidence can be used to determine relationships between plant species.

This pathway provides an overview of the four classes of biological molecules (lipids, carbohydrages, proteins and nucleotides) and how they are assembled.

This pathway introduces how DNA can be manipulated using different molecular tools and techniques. For a deeper look at this topic, we recommend the pathway Biotechnology and Genomics from the OpenStax textbook Biology for AP® Courses.

This pathway provides and introduction to some of the systems of the body and the concept of homeostasis.

This pathway shows how LabXchange can help build scientific literacy skills to help you engage with the science happening around you.

This pathway highlights some of the features and content types on LabXchange that allow researchers and those interested in research to connect and share their experiences.

This pathway describes how DNA ligase, a key enzyme in DNA replication, is used in gene cloning to create a recombinant plasmid. This pathway supports ABE lab 3: Building a Recombinant Plasmid.

This pathway explains how restriction enzymes are used in gene cloning to obtain the DNA pieces that will create a recombinant plasmid. This pathway supports ABE labs 2, 2a, 3, 4, and 4a.

This pathway provides an introduction to cellular mechanisms of communication, highlighting one of the primary mechanisms: signal transduction pathways. For a deeper look at this topic, we recommend the pathway Cell Communication from the OpenStax textbook Biology for AP® Courses.

This pathway provides an introduction to the cell cycle and how its regulation is important to normal cell division. Cancer is often caused by unregulated cell division. For a deeper look at this topic, we recommend the pathway Cell Reproduction from the OpenStax textbook Biology for AP® Courses.

This pathway explores division of cells through mitosis and meiosis and how disregulation of these processes can lead to disease.

This pathway introduces the structure of cell membranes and how they function in cellular transport.

This pathway explores the different types of cells, including eukaryotic, prokaryotic and plant cells, and their structures.

This pathway provides an introduction to cells as the basic unit of life and their structure and function. Prokaryotic, eukaryotic and plant cells are compared and the structure and function of different organelles is discussed. For a deeper look at this topic, we recommend the pathway Cell Structure from the OpenStax textbook Biology for AP® Courses.

This pathway provides an introduction to cellular mechanisms of transport, including a comparison of passive and active mechanisms. For a deeper look at this topic, we recommend the pathway Structure and Function of Plasma Membranes from the OpenStax textbook Biology for AP® Courses.