5 Microbiology, immunity and ecology

Practice questions on Microbiology, immunity and ecology

• A student is preparing a growth medium to culture bacteria in a school laboratory. Explain… (5 marks, Explain)
• A student wants to grow bacteria on an agar plate to investigate the effect of temperature… (5 marks, Explain)
• A scientist is investigating the growth of bacteria in a liquid growth medium. The bacteri… (5 marks, Explain)
• Chlamydia is a communicable disease caused by the bacterium Chlamydia. Explain how the bod… (5 marks, Explain)
• Malaria is a communicable disease caused by a protist called Plasmodium. It is transmitted… (5 marks, Explain)
• Explain how the immune system responds when a pathogen enters the body for the first time … (5 marks, Explain)
• A scientist is investigating antibiotic resistance in a population of bacteria. Over sever… (5 marks, Explain)
• A hospital notices that a particular antibiotic is no longer effective against a strain of… (5 marks, Explain)
• A student leaves a piece of bread in a warm, damp environment. After two weeks, the bread … (5 marks, Explain)
• A compost heap contains dead plant material, food scraps and animal waste. Explain why the… (5 marks, Explain)
• A farmer stores freshly cut silage (grass) in sealed, airtight bales. After several months… (5 marks, Explain)
• A dead tree falls in a woodland. Over several years, decomposers break down the wood, retu… (5 marks, Explain)
• Decomposers such as bacteria and fungi play an important role in the recycling of nutrient… (5 marks, Explain)
• Explain why the development of antibiotic-resistant bacteria is a serious problem for trea… (5 marks, Explain)
• Farmers sometimes add antibiotics to animal feed to promote growth and prevent disease in … (5 marks, Explain)
• A patient is diagnosed with a bacterial infection and is prescribed a course of antibiotic… (5 marks, Explain)
• A person is infected with influenza virus for the first time. Some B-lymphocytes that resp… (5 marks, Explain)
• T-lymphocytes and B-lymphocytes both play important roles in the immune response. Explain … (5 marks, Explain)
• A patient is given a blood transfusion using blood from a donor whose antigens do not matc… (5 marks, Explain)
• Vaccines are used to protect individuals against communicable diseases. Explain how a vacc… (5 marks, Explain)