In this practical investigation, we explore the world of microbiology and learn how to grow microbial cultures on agar plates while observing their growth characteristics. Discover the necessary equipment needed and learn the importance of aseptic technique to prevent contamination. Through the process of incubation and making subcultures, we uncover the unique colony characteristics of different microorganisms. By the end of this experiment, you'll gain a deeper understanding of microbial growth and the importance of laboratory safety.
Enzymes are essential biological catalysts that play a crucial role in many chemical reactions in living organisms. In this practical investigation, we will be exploring the effect of pH on the activity of the enzyme catalase, which is responsible for breaking down hydrogen peroxide into water and oxygen. By carrying out this experiment, we can better understand the role of pH in enzyme activity and how enzymes function in biological systems. Through a step-by-step guide and the use of equipment such as a gas syringe, we can measure the volume of oxygen gas produced and draw conclusions from the data. This practical investigation is a fascinating way to learn about the principles of biological catalysts, chemical reactions, and pH, making it an excellent choice for students interested in biology or chemistry.
In this practical investigation, we explore the process of osmosis in plant tissue and how it affects plant growth. By using a petri dish and sucrose solution, we can study the movement of water in and out of cells and gain a deeper understanding of this crucial biological process. Our step-by-step guide outlines the equipment needed, method, and expected findings, as well as providing answers to frequently asked questions. Join us as we delve into the fascinating world of osmosis and plant biology. By conducting this simple and effective practical investigation, we can gain a better understanding of the process of osmosis in plant tissue and how it affects the overall health and growth of plants.
Practical Science 