Highlights: Scientists Create Artificial Red Blood Cell

Photo Credit: https://pixabay.com/users/vector8diy-12462983/ A group of researchers from University of Mexico, South China University of Technology, and Sandia National Laboratories created an artificial red blood cells that imitates all the abilities of the natural cell.The newly created artificial red blood cells has also been found to have new abilities.Red blood cells take up oxygen in … Continue reading Highlights: Scientists Create Artificial Red Blood Cell

Highlights: Elephant Dies Possibly Of Eating Fruits with Explosives

An elephant died following injuries it sustained after eating a pineapple filled with firecrackers.(Image: © STR/AFP via Getty Images) An autopsy of a wild elephant in India revealed a possible consumption of fruits loaded with firecrackers that exploded in the elephant's mouth.The incident happened in the state of Kerala on May 27, 2020.A local forest … Continue reading Highlights: Elephant Dies Possibly Of Eating Fruits with Explosives

Feedback Inhibition in Metabolic Pathways

Metabolic pathways are a series of reactions that multiple enzymes catalyze. Feedback inhibition, where the pathway's end product inhibits an upstream step, is an important regulatory mechanism in cells.Source: OpenStax Biology 2e OpenStax Biology 2e Molecules can regulate enzyme function in many ways. However, a major question remains: What are these molecules and from where … Continue reading Feedback Inhibition in Metabolic Pathways

Drug Discovery by Looking for Inhibitors of Key Enzymes in Specific Pathways

Credit: Deborah Austin OpenStax Biology 2e Enzymes are key components of metabolic pathways. Understanding how enzymes work and how they can be regulated is a key principle behind developing many pharmaceutical drugs on the market today. Biologists working in this field collaborate with other scientists, usually chemists, to design drugs. Consider statins for example—which is … Continue reading Drug Discovery by Looking for Inhibitors of Key Enzymes in Specific Pathways

Molecular Regulation of Enzymes

Competitive and noncompetitive inhibition affect the reaction's rate differently. Competitive inhibitors affect the initial rate but do not affect the maximal rate; whereas, noncompetitive inhibitors affect the maximal rate.Source: OpenStax Biology 2e OpenStax Biology 2e Enzymes can be regulated in ways that either promote or reduce their activity. There are many different kinds of molecules … Continue reading Molecular Regulation of Enzymes

Enzymes

Enzymes lower the reaction's activation energy but do not change the reaction's free energy.Source: OpenStax Biology 2e OpenStax Biology 2e A substance that helps a chemical reaction to occur is a catalyst, and the special molecules that catalyze biochemical reactions are enzymes. Almost all enzymes are proteins, comprised of amino acid chains, and they perform … Continue reading Enzymes

ATP: Adenosine Triphosphate

ATP is the cell's primary energy currency. It has an adenosine backbone with three phosphate groups attached.Source: OpenStax Biology 2e OpenStax Biology 2e Even exergonic, energy-releasing reactions require a small amount of activation energy in order to proceed. However, consider endergonic reactions, which require much more energy input, because their products have more free energy … Continue reading ATP: Adenosine Triphosphate

Highlights: Three Species of Bird Discovered in Peru

New Scytalopus species from the Peruvian Andes: (upper left) adult male and female of the Jalca tapaculo (Scytalopus frankeae); (upper right) male Jalca tapaculo from Junin; (lower left) adult males of the Ampay tapaculo (Scytalopus whitneyi), left from Apurimac, right from Ayacucho; (lower right) adult male (top) and female (below) of the white-winged tapaculo (Scytalopus … Continue reading Highlights: Three Species of Bird Discovered in Peru

Discover A Species: Blue Poison Dart Frog

Credit: By I, Wildfeuer, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=6531962 Common Name: Blue Poison Dart FrogScientific Name: Dendrobates tinctorius "azureus"Distribution: Southern Suriname, northern BrazilAverage Weight: 8 gramsAverage Length: 3.75 cmAverage Lifespan: 6 years (in wild)Color: bright blue to dark bluePrey: ants, beetles, flies, mites, spiders, termites, maggots, and caterpillarsScientific Classification: Kingdom: AnimaliaPhylum: ChordataClass: AmphibiaOrder: AnuraFamily: DendrobatidaeGenus: DendrobatesSpecies: … Continue reading Discover A Species: Blue Poison Dart Frog