Dr. Mohammed Ahmed on Instagram: "Temperature vs. Enzymes - who wins? #igcse #igcse_student #igcseegypt #biologyigcse #biologymindmaps"

Toheed Mehrani on Instagram: "‎Definition and Function of Enzymes ‎An enzyme is a substance that acts as a catalyst in living organisms. ‎ ‎It regulates the rate of chemical reactions without being altered itself in the process. ‎ ‎Most enzymes are made up of protein. A few catalytic RNA molecules exist and are called ribozymes. ‎ ‎ ‎Enzymes work by binding a substrate at their active site to facilitate a reaction. ‎ ‎Historically, processes like the fermenting of wine, leavening of bread, curdl

Mykola Kobzar on Instagram: "At the ends of vour chromosomes are protective caps called telomeres. They're like the tips of shoelaces--thev prevent DNA from fraying. Every time a cell divides, telomeres get shorter. When thev're too short, the cell dies. These are the biological clocks of aging And scientists discovered something shocking stress speeds up this clock dramatically. But one inner state can trigger the reverse process. 5 facts that will change how you see stress: 1. Elizabeth Blackb