Bacteria of the human intestinal microbiome generate hydrogen gas (H2). Hydrogen gas is used by these same bacteria for methanogenesis, a biochemical pathway which generates methane. Here, we will discuss this process.<br/>

NEW!!! L-Lactate Dehydrogenase: Physiology, Biochemisty, and Mechanism

Metabolic Roadmap Part 1: Glucose Metabolism

Oxidative Pentose Phosphate Shunt

Microbiology: Mannitol Salt Agar (MSA)

This video is part of a series in which we do an overview of metabolism and pathways. Specifically, this video covers pathways associated with the citric acid [Krebs] cycle including glutamate/glutamine metabolism and nucleotide...

Biochemistry of the Entner-Doudoroff Pathway

mTOR Part 1: Activation of mTOR and Overall Effects

Lactic Acidosis: Biological pathway, causes, and subtypes. Elevated lactate production can lead to lactic acidosis which can be a serious condition and is the most common cause of metabolic acidosis in hospitalized patients. There are a...

NEW! Hexokinase Physiology, Biochemistry, and Mechanism

Regulation of Glycogen Metabolism

Chorismate, Phenylalanine, Tyrosine Biosynthesis

In this video, we explore the biochemistry of glycogenolysis in detail including the function and mechanism of glycogen phosphorylase and the function of the debranching enzyme.

Glycolysis | Regulation of PFK-1/Glycolysis Via PFK-2 Activity

Ethanol Fermentation Regeneration of NAD

Glycerophosphate Shuttle Mitochondrial NADH Transport

Lesson on the Glycolysis pathway.

In this video, I explain the glycolysis pathway (pathway involved in breakdown of glucose) starting with glucose uptake into the cell, glucose entrapment via hexokinase/glucokinase, examining the...

Lesson on the Cori cycle, introducing the importance and purpose of the Cori cycle and discussing how the Cori cycle can recycle lactic acid, produced from anaerobic metabolism in skeletal muscle, in the liver to form glucose through...

Creatine Kinase/Phosphagen System

Here, we will see how two forms of arsenic, arsenate and arsenote, disrupt energy metabolism via glycolysis and the TCA cycle, respectively.

Serine, Glycine Biosynthesis

This video is part of a series in which we do an overview of metabolism and pathways. Specifically, this video covers pathways associated with the citric acid [Krebs] cycle, the fates of Acetyl-CoA, and some important anaplerotic reactions.

Pyruvate Carboxylase

Mannokinase