It's the Favorskii rearrangement, a method of ring contraction! This reaction utilizes cyclopropane intermediates and is super neat. Need to make your ring one carbon smaller? Try the Favorskii rearrangement!

Histidine Biosynthesis AICAR Production

Cholesterol biosynthesis is divided into 4 general stages. This video diagrams stage 4 in which lanosterol is converted into cholesterol. Also, see how vitamin D is generated from this pathway.

Biosynthesis of Peptidoglycan in Bacteria

Systematic literature review with meta analysis is one of the most important methods used to review the scientific evidence on a topic. It starts with a literature search. If you're in the medical world, that might mean using PubMed (but...

This video is a follow-up to the video regarding functions of LH and FSH (the gonadotropins). Here, we look at more detail regarding the synthesis of estradiol and the roles of the Theca Cells and Granulosa Cells.

Biomedical lesson on AKT (Protein Kinase B) signaling, regulation and downstream effects. The AKT signalling pathway is a highly conserved pathway that induces several important functions including glucose uptake and utilization,...

Wanna make an amide out of a ketone? Try the Schmidt reaction! It's got azides, it's got really neat concerted rearrangements, it's got diazoiminium intermediates, it has it all! Let's check out the mechanism, implications, and...

Amino acids, nature makes them, and humans have been making them as well since 1850. The first lab synthesis of amino acids was reported by Adolph Strecker, so it's called the Strecker amino acid synthesis, and despite being so ancient...

Vitamin B3 Niacin Deficiency (Pellagra) | Sources, Causes, Symptoms, Diagnosis, Treatment



**PLEASE NOTE THE FOLLOWING
ERRORS:**
1) When I said, "niacin is also known as nicotinic acid or nicotinamide", this is...

Amino Acid Metabolism the Methionine (SAM) Cycle

Lesson on Folate (Vitamin B9), metabolic pathways that require folate, dietary sources of folate, and the physiology of absorption and metabolism of folate. Folate is an essential water-soluble vitamin that is required for several...

Lipid Biosynthesis Biosynthesis of Phosphatidic Acid and Triacylglycerols

This video tutorial discusses the Acetylcholine also known as ACh. 0:00. Intro to ACh 0:21. What is ACh? 0:41. What neurons release ACh? 1:47. Synthesis of ACh - 3:05. Hemicholinium 3:31. Storage of ACh - 5:07. Vesamicol 5:35. Release of...

In this video, we explore the biosynthesis, the mechanism, and clinical applications of coenzyme Q, an absolutely critical cofactor of the mammalian electron transport chain.

Porphobilinogen Synthase: Physiology, Biochemistry, and Organic/Inorganic Mechanism

Selenophosphate Synthetase: Physiology, Biochemistry, and Mechanism

Porphyrins | Heme b Biosynthesis and its Regulation

We've talked about a few heterocycles, but one important aromatic one we didn't mention is the indole. This is a component of a variety of biomolecules. So how can we make them? Nobel prize winner Emil Fischer developed the Fischer...

Interphase and Regulation of Cell Cycle by CDKs and Cyclin

An in-depth lesson on mTOR signaling pathway, looking at both mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2), a brief overview of the regulation of the mTOR pathway and the many (many) downstream effects of the mTOR...

Upon viewing the Investigating Chemical Reactions video series, students will be able to do the following: Define a chemical reaction as a process in which substances undergo changes to produce new materials with different properties....

p53, Mitosis, and Apoptosis for Anatomy and Physiology

Sports Nutrition Discussion Board #3