Stepping through the Shikimate Pathway II

We ended the last webcast, Part 1 of the shikimate pathway, by showing how the three building blocks came together and produced this molecule enolpyruvate shikimate phosphate, and now we want to see how this transforms first into prephenate and then from there to the aromatic amino acids phenylalanine and tyrosine. So we have to […]

Ahern’s BB 350 at OSU – 12. Membrane Lipids

>>Happy Monday. Happy day after the exam. How was the exam?>>[INAUDIBLE] >>Great, yeah, and maybe no. I heard, I think, all three. So the exams were just handed to me by the TA just before I got to class, so they are graded. I haven’t had a chance to record them or look at them, […]

13. Polar covalent bonds; VSEPR theory

The following content is provided under a Creative Commons license. Your support will help MIT OpenCourseWare continue to offer high quality educational resources for free. To make a donation or view additional materials from hundreds of MIT courses, visit MIT OpenCourseWare at ocw.mit.edu. PROFESSOR: — 10 seconds to answer the first clicker question. As you […]

6. Kevin Ahern’s Biochemistry – Protein Purification I

Professor Kevin Ahern: Happy Friday! [students cheering] It never fails to elicit a few whoos! By the end of the term it’s going to be like, “uhh.” Now it’s still the, “Whoo!” Big weekend plans? Studying Biochemistry, this is good. The heck with Biochemistry, right? Alright so we’re pretty much on target with where we […]

Gluconeogenesis: Expensive, but Essential | MWM 2.29

Gluconeogenesis. We don’t have to eat carbohydrate because we can make it from other things in our diet like protein. But being gluconeogenic ain’t easy. As far as your ATP supply is concerned, it might just break the bank. But hey, the liver’s got to do what the liver’s got to do, amiright? Let’s take […]

Myocardial metabolism

Hi, this is Dr. Vijay. In this video, we are going to study myocardial metabolism. As the heart is continuously beating, it requires sufficient amount of ATP. So ATP is the energy currency and the metabolic demand of heart is highest, because bulk of the ATP or energy utilized for contraction of the heart and […]

G-Protein Coupled Hormone Signal Transduction

This animation depicts the surface view of a target cell and its interaction with a peptide hormone as a model to demonstrate g-protein coupled signal transduction in cells. Peptide hormones generally consist of short chains of amino acids. Because peptide hormones are often quite short, they lack a rigid three-dimensional conformation and are flexible. Peptide […]

Lactate dehydrogenase: Isoenzymes: Diagnostic important enzymes

Hi, this is Dr. Vijay. Today we are going to study at another important Isoenzyme lactate dehydrogenase. The standard abbreviation for lactate dehydrogenase is LDH. The enzyme commission number for this lactate dehydrogenase is EC 1. 1. 1. 27. This enzyme catalyzes conversion of lactate to pyruvate or pyruvate back to lactate by utilizing a […]

A Level Biology: Amino Acid Structure

hey guys welcome back to learnbiology.net I’m Frankie and in this revision session we’re going to cover the specification reference three point one point four point one this is topic 1a and your learning outcomes are number one know the general structure of an amino acid and understand that amino acids are the monomers from […]

Pentose Phosphate Enzymes, ATP, and B Vitamins | Masterclass With Masterjohn 1.11

Hi. I’m Dr. Chris Masterjohn of chrismasterjohnphd.com, and you are watching Masterclass with Masterjohn. And today we’re in our eleventh in a series of lessons on the antioxidant defense system. In the last lesson we talked about how the pentose phosphate pathway is what produces NADPH. And NADPH is an energy carrier that is derived […]