Catalyst University
Aldehyde Dehydrogenase: Physiology. Biochemistry, and Mechanism
Aldehyde Dehydrogenase: Physiology. Biochemistry, and Mechanism
Catalyst University
Protein Metabolism | Ubiquitination of Proteins & the 26S Proteasome
Protein Metabolism | Ubiquitination of Proteins & the 26S Proteasome
JJ Medicine
Purine Synthesis and Salvage Pathway
Lesson on the purine synthesis and metabolism pathway, and the purpose, regulation and importance of the pathway in human physiology and health. In this lesson, I discuss the two purines (adenine and guanine), the importance of purines,...
Catalyst University
Biosynthesis of Major Reactive Oxidative Species
In this video, I explain the biosynthetic pathway for the major Reactive Oxidative Species (ROS) such as hydrogen peroxide, hydroxyl radicals, and superoxide.
JJ Medicine
Pyruvate Kinase Deficiency | Symptoms, Pathophysiology, and Treatment
Lesson on Pyruvate Kinase Deficiency Disorder: Symptoms, Pathophysiology and Treatment. Pyruvate Kinase Deficiency is the most common red blood cell (RBC) enzyme defect that leads to hemolytic anemia. Decreased levels and activity of the...
Catalyst University
Corrin/B12 Biochemistry: Methylmalonyl-S-CoA Mutase Mechanism
Corrin/B12 Biochemistry: Methylmalonyl-S-CoA Mutase Mechanism
Curated Video
Lactose Intolerance: Why Many Asians Cannot 'Digest' Milk?
Lactose intolerance is quite common, especially in Asian countries. The reason behind this is “gene-culture co-evolution”. Lactose intolerance is the inability to digest lactose in milk because they lack the lactase enzyme. A 1981 study...
Ancient Lights Media
Signal Transduction: Light Induced Cellular Change
Plant Physiology and Chemistry Set: 6. This clip shows how, by the process of signal transduction, light is able to bring about chemical responses that result in the expression of genes.
Curated Video
The Complete React Developer Course (with Hooks and Redux) - Testing User Interaction
In this video you'll learn how to simulate user interaction in your test cases. That means you can "click" a button and make sure the correct changes are made. This clip is from the chapter "Testing Your Application" of the series "The...
Curated Video
Are Humans The Only Species To Drink Milk Of Other Species?
When it comes to mammals, we are the only species that drinks milk directly from other species, or we are the only one that does so in adulthood. Most juvenile animals can drink and digest their mother’s milk because they carry the...
Catalyst University
FerredoxinNADP+ Reductase Generation of NADPH
FerredoxinNADP+ Reductase Generation of NADPH
Curated Video
Life Substances - The Chemistry of life
There are a number of substances that are vital to all living organisms. In this lecture, I talk about substances like carbohydrates, lipids, proteins and nucleic acids, going into some detail about their structures and importance.
Catalyst University
Hippurate Hydrolysis Test | Theory & Results
In this video, we explore the theory of the hippurate hydrolysis [hippuricase] test and how to interpret the results.
Professor Dave Explains
Gene Expression Analysis and DNA Microarray Assays
If we want to understand a biological organism, we turn to the expression of its genome. Which genes are being expressed, and in which cells, and when? How does this differ between a normal cell and a cancer cell? We have incredibly...
JJ Medicine
Dysregulation of Cortisol and Aldosterone | Black Licorice and Associated Health Effects
Black licorice consumption has been linked to hypertension, hypokalemia, heart arrhythmias, edema and lethargy. A recent report by the US FDA has stated that black licorice consumption of more than 56.7 grams per day for 2 weeks can...
JJ Medicine
Carnitine Shuttle | Purpose and Mechanism
Lesson on the Carnitine Shuttle. Carnitine is an important metabolite derived from our diet or biosynthesized from lysine and methionine. Since the mitochondrial inner membrane is impermeable to long chain fatty acids, carnitine is used...
Catalyst University
Cytochrome b6f Proton Pumping and ATP Synthesis
Cytochrome b6f Proton Pumping and ATP Synthesis
Catalyst University
Irreversible Inhibition: A Mechanistic Approach
Irreversible Inhibition: A Mechanistic Approach
Catalyst University
Lineweaver-Burke Plot Example with y=mx+b
Lineweaver-Burke Plot Example with y=mx+b
Catalyst University
Anatomy | Imbalances of the Integumentary System
In this video, we discuss several homeostatic imbalances of the integumentary system and their mechanisms: albinism, a nevus, freckles, and hemangioma.