This week, Grade 9 students delved into the fascinating world of biological molecules, focusing on proteins, glucose, and starch. This hands-on experience in the lab is designed to build a solid foundation for future studies in the International Baccalaureate Diploma Programme (IBDP) Biology.
Students engaged in several activities, beginning with testing for proteins using the Biuret test to identify their presence in various food samples. They observed color changes that indicated positive results. Next, they conducted the Benedict’s test to detect glucose, monitoring color shifts from blue to green, yellow, or brick red, which signified varying concentrations of glucose. Finally, they employed the Iodine test to check for starch, noting the characteristic blue-black coloration in positive samples.
Through these activities, students learned about the fundamental roles of biological molecules and gained hands-on experience with laboratory techniques, reinforcing their theoretical knowledge through practical application. The group work fostered teamwork and communication skills.
