video_collector's Videos

Polyketide Biosynthesis: The Erythromycin Example - Part 1: Overview of Polyketides and Polyketide Biosynthesis (34:10)
In the first part, an overview of polyketides and polyketide biosynthesis is presented. A rationale for investigating polyketide biosynthesis is also presented. For further informaton see:...

Polyketide Biosynthesis: The Erythromycin Example - Part 3: Enzymology of Erythromycin Polyketide Biosynthesis (42:11)
In the final part, the enzymology of the erythromycin polyketide synthase is discussed.

Polyketide Biosynthesis: The Erythromycin Example - Part 2: Impact of Genetics and Molecular Biology on Understanding and Engineering Erythromycin Biosynthesis (22:44)
In the second part, the contributions of genetics and molecular biology on investigations into erythromycin biosynthesis are summarized. The impact of these fields on biosynthetic engineering is...

Gummy Bear Experiment - Conversion of Bond Energy to Heat Energy & Light Energy
This cool science experiment illustrates the conversion of bond energy to heat energy and Light Energy. It is also a good demonstration cellular respiration. At www.RegentsTutor.com the Regents...

Cell-Cell Communication in Bacteria by Bonnie Bassler, June 2008 - Part 1: Bacterial Quorum Sensing: Intra- and Inter-Species Communication (53:48)
Bacteria, primitive single-celled organisms, communicate with chemical languages that allow them to synchronize their behavior and thereby act as enormous multi-cellular organisms. This process is...

science experiment using air pressure to crush a pop can
science experiment using air pressure to crush a pop can

science experiment with acetic acid and sodium bicarbonate
science experiment with acetic acid and sodium bicarbonate (baking soda and vinegar) giving off carbon dioxide among other things

Host-Pathogen Interaction and Human Disease: Part 1: What is a Pathogen? Trying to Understand Human Biology by the Study of Pathogenic Bacteria (37:48)
Ninety percent of the cells humans carry are microbes. Only a few of the bacteria we encounter are pathogenic and can cause disease. Pathogens possess the inherent ability to cross anatomic...

Host-Pathogen Interaction and Human Disease: Part 2: Helicobacter pylori and Gastric Cancer (48:57)
Helicobacter pylori lives in the human stomach. It causes gastritis, ulcer disease and even gastric cancer. Some H. pylori can inject a protein, CagA, into gastric epithelial cells. CagA interacts...

Genes and Cells that Determine the Lifespan of C. elegans - Part 1: An Evolutionarily-Conserved Regulatory System for Aging (42:46)
Once it was thought that aging was just a random and haphazard process. Instead, the rate of aging turns out to be subject to regulation by transcription factors that respond to hormones and other...