BIOS 242 Lab Assignments Week 1 , 2, 4, 5, 6 and 7

Lab 2: Techniques for Isolation of Pure Cultures Learning Objectives: • Isolate pure cultures from a mixed population of microorganisms using aseptic technique. • Learn the streak plate method Introduction: In this laboratory exercise, colonies from mixtures of Escherichia coli and Serr...

Lab 3: Microscopy- Observation of Cells Learning Objectives: • Use the compound light microscope for observation of cells. • Identify different types of bacteria based on their shapes. • Identify a variety of eukaryotic cells. Introduction: Exercise 2: Observation of Different Types of...

Lab 4: Simple Staining Learning Objectives: • To learn about principle of staining • To learn the process of simple stain • To prepare wet mount slides Exercise 1: Simple Stain Materials: Overnight cultures of S. epidermidis, B. subtilis, S. cerevisiae (yeast) , inoculating loop, glass...

Lab 10: How Germs Spread Learning objectives: • Identify how germs spread • Explain the spread of germs • Identify the importance of good handwashing. Germs spread in many different ways. Direct contact, indirect contact, aerosol transmission, sexually transmitted or through a vector. I...

Lab 10: How Germs Spread Learning objectives: • To learn how germs spread • To better understand the spread of germs, by healthcare professionals, from patient to patient • To better understand the importance of good handwashing. Germs spread in many different ways. Direct contact, indi...

Lab 11: Bacteria of the Skin Learning Objectives: • Identify the growth of skin bacteria on different types of selective and differential media. • Identify pathogenic from non-pathogenic bacteria Introduction: Our skin forms the first line of defense. It has several characteristics that m...

Lab 14: Unknown Worksheet Learning Objectives: • Apply knowledge acquired in the laboratory exercises • Predict the identity of an unknown bacteria in the given case study • Based on the two dichotomous keys given, answer the following case studies. For each case study you should write 1-2...

Lab Report: Disinfectants and Antibiotics Purpose: Describe the purpose of the lab. Exercise 1: Disinfectants Organism 1: Be sure to record the chemical or product you tested and complete this table by obtaining data from other groups in your class Organism 2: Be sure to record the chemical ...

Learning Objectives: • To learn about effectiveness of hand washing • To learn about cleaning produce • To learn about appropriately storing foods GI infections occur due to contaminated food and water. Clean drinking water, washed produce, appropriate storage of food and simple personal h...

Lab 12: Bacteria of the Respiratory System Introduction: The respiratory system is divided into two parts: the upper and lower respiratory systems. The lower respiratory system is an axenic environment because of the cilia that lines the respiratory tract, alveolar macrophages and IgA antibodies f...