BI 234

BI 234 CHAPTER 9&10 EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED Sterilization to kill or remove all microbes so there is nothing viable left Aseptic working with microbes without contamination; Bactericidal having the ability to kill bacteria; Eg. disinfectants, antiseptics, or antibiotics Bacteriostatic having the ability to prevent the growth of bacteria, or to keep them in the stationary phase of growth Action of Antimicrobial Agents: Denaturing proteins disrupting nucleic ac...

BI 234: CHAPTER 16 EXAM QUESTIONS WITH COMPLETE VERIFIED LATEST SOLUTIONS 2024 antigen Causes the body to produce specific antibodies or sensitized T cells B cells (B Lymphocytes) These arise and mature in the red bone marrow of adults T cells (T Lymphocytes) These arise in the bone marrow but mature in the Thymus antibody a protective protein secreted by descendants of a B cell that recognize a specific biochemical shape immunity specific antibody and lymphocyte response to an antigen...

BI-234 - LECTURE CHAPTER 10 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS LATEST UPDATE To delay the infection so the immune system can eliminate it What is the primary job of antibiotics? the ability of a drug to target and kill harmful microorganisms without damaging the host's cells What is selective toxicity? Cell membrane, cell wall synthesis, protein synthesis, nucleic acid synthesis, metabolic pathways What are the 5 targets of antimicrobial action? Because they are easier ...

BI 234 MIDTERM 2 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++ 1% What % of microbes can be grown in pure culture? There is so much that we don't know about because it is impossible to grow and observe the majority of these organisms. Why is it significant for microbiologists to recognize the % above? Melts at 95℃ and solidifies at 45 ℃ What is the melting temperature and solidifying temperature of agar? It provides nutrients for them. Why is agar especially suit...

BI-234 LECTURE - CHAPTER 9 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED BY EXPERT Sterilzation To kill or remove all microbes Aseptic Working with microbes without contamination Antiseptic Stops/slows down the growth of microorganisms on living tissue disinfectant elimination of pathogens, used on a surface de-germing physically removing filth and microorganisms, handwashing sanitization reduced the number of potential pathogens to below the level of public health co...

BI-234 - LECTURE - CHAPTER 16 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++ specific host defense What is adaptive immunity also called? Adaptive is more specific but could accidentally target ourselves. Adaptive also has immunological memory so our body saves cells that were successful in thwarting an attack. What are the key differences between innate and adaptive immunity? Because it is not present at birth but develops overtime as the body encounters and learns to reco...

BI-234 - LECTURE - CHAPTER 14 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED persistent interactions between organisms Symbiosis symbiotic relationship where 2+ organisms benefit from their interactions Mutualism symbiotic relationship where one organism benefits from another without causing harm or benefit to it Commensalism symbiotic relationship where one organism is the parasite and the other is the host Parasitism Normal flora Normal microbiota the community of mic...

BI 234 CHAPTER 3 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED Describe, compare and contrast the structure of eukaryotic cells and prokaryotic cells. Prokaryotes do not have a nucleus or organelles. Eukaryotes have a nucleus and compartmentalized organelles. The types of lipids in the membrane and cell wall (if present) differ between the two. Describe the basic structure of a bacterial cell. All types have cell walls, Gram-positive have a thick cell wall and no outer membra...

BI234 EXAM 1 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED What is a prokaryote? very small, single celled organism with no nucleus or organelles, most have a cell wall and they reproduce asexually What is a eukaryote? Uni or multicellular, have nucleus and organelles (fungi, protists, animals, plants) Characteristics of Bacteria - Prokaryotic - Can be disease causing or non harmful - Many ways of obtaining energy - Come in many shapes and sizes - They reproduce asexu...

BI234 MICROBIOLOGY FINAL ACTUAL EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE 2024/2025 What is the difference between commensalism and parasitism? Commensalism is when one organism is benefited and the other is not affected at all. Parasitism is when one organism is benefited at the expense of the other. Give an example of how a patient might catch botulism? Ingest food that was not properly canned. Give an example of how a patient might catch tetanus? deep ...