Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.

Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.

By the end of this section, you will be able to:Explain how the binding of a ligand initiates signal transduction throughout a cellRecognize the role of phosphorylation in the transmission of intracellular signalsEvaluate the role of second messengers in signal transmission

By the end of this section, you will be able to:Describe how signaling pathways direct protein expression, cellular metabolism, and cell growthIdentify the function of PKC in signal transduction pathwaysRecognize the role of apoptosis in the development and maintenance of a healthy organism

By the end of this section, you will be able to:Describe four types of signaling found in multicellular organismsCompare internal receptors with cell-surface receptorsRecognize the relationship between a ligand’s structure and its mechanism of action

By the end of this section, you will be able to:Describe how single-celled yeasts use cell signaling to communicate with one anotherRelate the role of quorum sensing to the ability of some bacteria to form biofilms

This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Osteoporosis, a disease that causes bone loss, currently affects more than 200 million people worldwide. While anti-osteoporosis drugs do exist, they tend to produce complicated side effects. That has scientists exploring various molecular pathways in search of viable therapeutic targets, namely pathways related to the signaling molecule STAT3. STAT3 plays important roles in cell differentiation, proliferation, and survival and is proving to be critical in regulating bone remodeling processes. STAT3 regulates both bone formation and breakdown through an array of signaling cytokines, transmembrane proteins, and cytoplasmic proteins. Research is revealing different ways of targeting STAT3 signaling to fight osteoporosis. These include STAT3-sensitive drugs such as the natural products catalpol and methylsulfonylmethane, microRNAs that regulate bone homeostasis, and different families of cells, including immature blood cells, white blood cells, and immune cells..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.