Get an intuition for why carbon dioxide is so much more soluble …
Get an intuition for why carbon dioxide is so much more soluble than oxygen when it goes into water. Rishi is a pediatric infectious disease physician and works at Khan Academy.These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video.
Anatomy and Physiology is a dynamic textbook for the two-semester human anatomy …
Anatomy and Physiology is a dynamic textbook for the two-semester human anatomy and physiology course for life science and allied health majors. The book is organized by body system and covers standard scope and sequence requirements. Its lucid text, strategically constructed art, career features, and links to external learning tools address the critical teaching and learning challenges in the course.
Human Anatomy and Physiology (A&P) 242 is the second class in a …
Human Anatomy and Physiology (A&P) 242 is the second class in a two quarter sequence in which human anatomy and physiology are studied using a body systems approach with emphasis on the interrelationships between form and function at the gross and microscopic levels of organization. You can think of this course as "An Owner's Guide to the Human Body".
Paul Andersen explains how organisms regulate their internal osmolarity or not. He …
Paul Andersen explains how organisms regulate their internal osmolarity or not. He starts with a brief description of osmosis and why it is important for animal cells to be surrounded by an isotonic solution. He then explains how freshwater and saltwater fish osmoregulate. He finally discusses the nephron within the kidney as an osmoregulatory organ.
Learn how oxygen content (CaO2) is related to Hemoglobin concentration (Hb), oxygen …
Learn how oxygen content (CaO2) is related to Hemoglobin concentration (Hb), oxygen saturation (SaO2), and the partial pressure of oxygen (PaO2). Rishi is a pediatric infectious disease physician and works at Khan Academy.
Watch as a molecule of oxygen makes its way from the alveoli …
Watch as a molecule of oxygen makes its way from the alveoli (gas layer) through various liquid layers in order to end up in the blood. Rishi is a pediatric infectious disease physician and works at Khan Academy. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video.
Learn more about photosynthesis and cellular respiration through a classic story: Jack …
Learn more about photosynthesis and cellular respiration through a classic story: Jack and the Beanstalk. Rishi is a pediatric infectious disease physician and works at Khan Academy.
The resource, ''Periodic table visual aid (pdf)'' included in "Lesson 4 Composition …
The resource, ''Periodic table visual aid (pdf)'' included in "Lesson 4 Composition of Matter ChemBonds Reactions" is a part of "Unit 02 Biomedical Systems" included in Health & Life Sciences HLS - Course 1.
Find out how the your body uses special cells that are peripheral …
Find out how the your body uses special cells that are peripheral to the brain (outside the brain) to sense levels of O2, CO2, and pH. Rishi is a pediatric infectious disease physician and works at Khan Academy. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video.
Paul Andersen describes how plants and animals defend themselves against pathogens. He …
Paul Andersen describes how plants and animals defend themselves against pathogens. He begins by discussing the hypersensitive response in plants as a nonspecific form of immune response. He then discusses both the humoral and cell-mediated immune response in mammals.
Paul Andersen explains how polymers are formed from monomers. He describes how …
Paul Andersen explains how polymers are formed from monomers. He describes how carbohydrates, proteins and nucleic acids are created through condensation reactions. He also explains how these macromolecules are broken down through the process of hydrolysis.
Find out how the body controls how much blood flows through a …
Find out how the body controls how much blood flows through a capillary bed. Rishi is a pediatric infectious disease physician and works at Khan Academy.
Paul Andersen explains the structure and importance of proteins. He describes how …
Paul Andersen explains the structure and importance of proteins. He describes how proteins are created from amino acids connected by dehydration synthesis. He shows the importance of chemical properties in the R-groups of individual amino acids in the polypeptide.
Moodle™ 4.3 offers a powerful Question Bank feature, enabling instructors and course …
Moodle™ 4.3 offers a powerful Question Bank feature, enabling instructors and course creators to build, organize, and reuse various types of questions across different courses, quizzes, and lessons. This guide provides a detailed overview of the core features of the Question Bank, along with practical tips for creating questions, organizing categories, sharing content across courses, and troubleshooting common issues.
Find out how the various pacemaker cells in the heart actually race …
Find out how the various pacemaker cells in the heart actually race against the clock to try to keep pace for the heart, and how the heart has not one but two back up systems! Rishi is a pediatric infectious disease physician and works at Khan Academy.
Learn about how the arteries use nerve impulses to help regulate blood …
Learn about how the arteries use nerve impulses to help regulate blood pressure. Rishi is a pediatric infectious disease physician and works at Khan Academy.
Understand what is happening at the cellular level to cause two identical …
Understand what is happening at the cellular level to cause two identical left ventricular volumes to have such different pressures! Rishi is a pediatric infectious disease physician and works at Khan Academy.
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