A video lesson which introduces students to energy metabolism through the lens of ATP as the primary molecular unit of currency for the cell.
Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.
By the end of this section, you will be able to do the following:
Discuss the importance of electrons in the transfer of energy in living systems
Explain how ATP is used by cells as an energy source
By the end of this section, you will be able to do the following:
Explain ATP's role as the cellular energy currency
Describe how energy releases through ATP hydrolysis
By the end of this section, you will be able to do the following:
Explain how plants absorb energy from sunlight
Describe short and long wavelengths of light
Describe how and where photosynthesis takes place within a plant
Covers the structure and function of nucleic acids.
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Video lecture focuses on light-dependent reactions and how they work. It shows how light energy can excite electrons which can be used to create ATP and NADPH. [9:04]
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.
This pathways explores how cells harvest energy using cellular respiration in eukaryotic cells and photosynthesis in plant cells.
A video introducing the two different processes of metabolism: catabolism and anabolism. Video gives lots of example to explain that catabolism is a process of breaking down and anabolism rebuilds matter. [10:06]
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.
Explore the process of active transport.
A free CK-12 account is required to view all materials.
How does the food you eat provide energy? Through the process of cellular respiration, the energy in food is changed into energy that can be used by the body's cells. Learn more about cellular respiration in this learning module produced by CK-12.
A free CK-12 account is required to view all materials.
This video tutorial gives a detailed description of the various molecular actors in the light-dependent reactions. [6:37]
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.
College-level online biology course focusing on the process of photosynthesis. Course highlights the physical, chemical, and biological reactions that happen during photosynthesis. Course features include lecture summaries, assignments, and sample student work.
Often referred to as the powerhouses of the cell, mitochondria provide the energy that powers nearly every cellular process. This essay by university lecturer John Ross describes in detail the structures and functions of these amazing organelles.
Understand the structure and function of the powerhouse of the cell, the mitochondria. [2:40]
Discover how mitochondrial DNA (mtDNA) is inherited, and complete a pedigree chart by determining which individuals might share mtDNA with an unknown ancestor.
