Related Experiment Video

Updated: Aug 14, 2026

Introduction to Solid Supported Membrane Based Electrophysiology
19:56

Introduction to Solid Supported Membrane Based Electrophysiology

Published on: May 11, 2013

Characterization of lactose transport in Kluyveromyces lactis

R C Dickson, K Barr

    Journal of Bacteriology
    |June 1, 1983
    PubMed

    More Related Videos

    Characterization of Membrane Transporters by Heterologous Expression in E. coli and Production of Membrane Vesicles13:16

    Characterization of Membrane Transporters by Heterologous Expression in E. coli and Production of Membrane Vesicles

    Published on: December 31, 2019

    In Vivo Monitoring of Transcriptional Activity During Metabolic Transition Using a Bioluminescent Reporter in Yeast06:53

    In Vivo Monitoring of Transcriptional Activity During Metabolic Transition Using a Bioluminescent Reporter in Yeast

    Published on: February 21, 2025

    Related Concept Videos

    Operons02:09

    Operons

    Prokaryotes can control gene expression through operons—DNA sequences consisting of regulatory elements and clustered, functionally related protein-coding genes. Operons use a single promoter sequence to initiate transcription of a gene cluster (i.e., a group of structural genes) into a single mRNA molecule. The terminator sequence ends transcription. An operator sequence, located between the promoter and structural genes, prohibits the operon’s transcriptional activity if bound by a repressor...
    Membrane Proteins01:30

    Membrane Proteins

    Plasma membranes have integral transmembrane proteins involved in facilitated transport. These proteins are collectively referred to as transport proteins, and they function as either channels for the material or as carriers themselves. Channel proteins have hydrophilic domains exposed to the intracellular and extracellular fluids and a hydrophilic channel through their core that provides a hydrated opening for solutes to pass through the membrane layers. Passage through the channel allows...
    ABC Transporters: Importer01:27

    ABC Transporters: Importer

    ATP-binding cassette or ABC transporters are a class of ATP-driven pumps that hydrolyze ATP to move solutes across the membrane. They can be grouped into importers and exporters. While exporters are present in all domains of life, importers exist only in bacteria and some plants.
    In bacteria, based on the number of transmembrane helices and the chemical nature of their substrates, the ABC importers can be divided into three types:
    Facilitated Diffusion01:16

    Facilitated Diffusion

    The plasma membrane, a critical structure in cellular biology, houses an array of transporters, or carrier proteins, interspersed within its lipid bilayer. These proteins play a crucial role in solute transport through facilitated diffusion, a form of passive diffusion that uses transporters to move the molecules across the membrane.
    In this process, substrates such as organic compounds and ions interact with a transporter on one side, triggering conformational changes in proteins that enable...
    Inducible Operons: lac Operon01:25

    Inducible Operons: lac Operon

    The lac operon in Escherichia coli is a model for understanding inducible gene regulation and metabolic flexibility. It integrates local control by lactose and global regulation through catabolite repression, enabling E. coli to preferentially metabolize glucose when available and switch to lactose utilization when glucose is scarce.Structure and Function of the lac OperonThe lac operon contains three structural genes: lacZ (β-galactosidase), lacY (lactose permease), and lacA (thiogalactoside...
    Microbes in Food Production01:29

    Microbes in Food Production

    Microbial fermentation is central to food biotechnology, enhancing flavor, texture, preservation, and stability. Fermentative microorganisms metabolize carbohydrates into organic acids, alcohols, and other metabolites that inhibit spoilage organisms and improve digestibility while contributing distinctive sensory qualities.In baking, amylases naturally present in flour hydrolyze starch into monosaccharides such as glucose, which Saccharomyces cerevisiae ferments anaerobically. Through...