Ever wondered how alcohol affects living cells? In this fascinating IB Biology experiment, we dive into the world of Beta vulgaris (beetroot) to explore how different concentrations of ethanol break down cell membranes. By measuring the leakage of the vibrant red pigment, betacyanin, we get a visual insight into how alcohol disrupts cell structures.
The study of membrane permeability is fundamental to understanding how cells interact with their environment. One widely studied model is the cell membranes of Beta vulgaris (commonly known as beetroot). Students explored through this practical activity based on their theoretical knowledge. These cells contain a red pigment called betacyanin, which is stored in the vacuole and is surrounded by the selectively permeable plasma membrane. When the membrane is damaged or compromised, betacyanin leaks into the surrounding environment, making it an excellent visual indicator of membrane permeability. Ethanol, a common solvent, is known to affect membrane integrity. This blog explores the effect of different concentrations of ethanol on the permeability of beetroot cell membranes.
This hands-on investigation not only brings cell biology to life but also has real-world connections—from food preservation to medical disinfection! Curious to learn more? Discover how ethanol changes the game in cell integrity with this simple yet eye-opening experiment!
