Biology Tuition -DLP & BM (Form 4-5)

SHAH ALAM AREA- Tuition Available 017-3535670

Divya Rajan- Home Tuition https://docs.google.com/forms/d/e/1FAIpQLSerboOYvpCO0jNL83UGCSdQ50m2mwt6qFK3B436FqaUUPWitQ/viewform

One to one online class available Biology and Science 017-3533670

Registration for year 2026 just started

Many foods naturally contain microorganisms that are necessary for production of the food or that may bring about health benefits. However, excessive growth of contaminating microorganisms in food can cause food spoilage or illnesses arising from food infection or food poisoning. Fruits and fruit juices are particularly susceptible to contamination by yeasts and molds.

Get an up-close look at mold and its surprising effects! Learn about common types, the health risks they pose, and how to keep your home mold-free. Subscribe to our YouTube channel for more insights, and don’t forget to share your thoughts with us! We’d love to hear your ideas and experiences—join the conversation! https://youtu.be/qwWyhcEARjE?si=1y-yeYigNdESY4wV

Attempt

Guess the blood group

Antiseptics and antibiotics are used to control bacteria through chemical methods. Antiseptics are bacteriostatic agents (not necessarily killing them) while Antibiotics can also have bacteriostatic and bacteriocidal properties. Some bacteria and fungi produce antibiotics as their natural product. These chemicals, on the other hand, could be synthetic versions of their natural equivalents. The filter paper disc method is a simple and effective way to compare antiseptics and antibiotics based on their ability to stop bacteria from growing. The picture depicts the relative effectiveness of an antiseptic agent (Iodine) and one antibiotic (ampicillin) against two organisms: S. epidermidis and E. coli. (Distilled water had been used as control). The millimetre scale clearly shows the zone of inhibition from the edge of the disk to the edge of the growth.

E.coli genomic DNA