Obligate anaerobes - Study guides, Class notes & Summaries

Microbiology Quiz 3 Material Questions With Accurate Answers A+ Graded True or false: Clostridia is aerobic - ANS-FALSE. Clostridia are obligate anaerobes How are anaerobic samples obtained? - ANS-Send sample to lab ASAP. use container with thioglycolate (an oxygen-reducing agent). Where are Clostridia naturally found? - ANS-soil True or false: Clostridia form spores. - ANS-TRUE. Location of the spore in the bacterium may aid in species identification (Ex. terminal spores tell you it is ...

MICR 221 TESTED QUESTIONS WITH ALL REVISED ANSWERS – UPDATED!! What is commensalism - Answer-a symbiotic relationship in which one organism benefits and the other is neither helped nor harmed What is mutualism - Answer-a symbiotic relationship in which both organisms benefit What is pathogenesis - Answer-a symbiotic relationship in which one organism is harmed (the pathogen may or may not grow outside of the host) What is parasitism - Answer-a symbiotic relationship in which one orga...

What bacteria inhabit extreme environments? correct answers often archaebacteria, or "ancient" bacteria How does archaebacteria differ from eubacteria or "true" bacteria? correct answers they differ in cell wall and cell membrane composition, ribosome composition and shape, tRNA structure and RNA polymerase sequences What are thermophiles? correct answers bacteria that inhabit environments with elevated temperatures What are hyper or super thermophiles? correct answers bacteria that...

REHS - microbiologyAcid Fast stain is for what type of bacteria - correct answer Mycobacterium (tuberculosis and leprosy) What type of bacteria forms spores? - correct answer gram +, bacillus and clostridium obligate aerobes - correct answer organism that requires a constant supply of oxygen in order to live obligate anaerobes - correct answer poisoned by oxygen facultative anaerobes - correct answer prefer oxygen, but can survive without it Psychrophiles - correct answer -2...

BIO 202 Exam 1 Questions With 100% Correct Answers Updated 2024/2025 (Graded A+) When was earth formed? - correct answer 4.55 billion years ago When did life on earth first appear? - correct answer 3.5 billion years ago What are the evolutionary mechanisms? - correct answer *Nonrandom mating *Migration *Genetic drift *Natural selection When does allopatric speciation occur? - correct answer when members of the same species become geographically separated When does sympatric speciation oc...

BIOS 242 Microbiology Midterm Exam Questions With Answers 2024/2025 | Graded A+. Antoni van Leeuwenhoek was the first person in history to Question 2 Question : . Microbes that can live in the presence or absence of oxygen are called Question 3 Question : . Which of the following scientists provided evidence in favor of the concept of spontaneous generation? Student Answer: Pasteur use a magnifying glass. develop a taxonomic system. view protozoa and bacteria. disprove spontaneous g...

TEST BANK MICROBIOLOGY WITH DISEASES BY BODY SYSTEM 6TH EDITION ROBERT W. BAUMAN | ALL CHAPTERS | LATEST VERSION 2023. Microbiology with Diseases by Body System, 6th Edition Bauman Chapter 1 A Brief History of Microbiology Multiple Choice Questions 1) Antoni van Leeuwenhoek was the first person in history to A) use a magnifying glass. B) develop a taxonomic system. C) view microorganisms and record these observations. D) disprove spontaneous generation. E) use the germ theory of disease...

MICROM 443 Question and answers rated A+ 2024/2025Genus Staphylococcus - Cells tend to form clusters, may be single, in pairs, or short chains - common skin microbiota - Generally hardy and not nutritionally fastidious - Facultative anaerobes (w/ O2 --> respire; without O2 --> ferment - Catalase positive Genus Streptococcus - Cells tend to form chains - Common oral microbiota - Nutritionally fastidious - Aerotolerent anaerobes/ obligate fermentors, some are caphophiles - Cat...

What is microbial growth? - increase in the number of cells What are the two general requirements for microbial growth? - physical: temperature, pH, osmotic pressure chemical: types of nutrients, growth factors A bacterium has just encountered a new environment. What are its three basic choices with respect to growth in this new environment? - Adapt- allows growth to continue Tolerate- survive without growth DIE What are a bacterium's cardinal temperatures? Do all bacteria have the same...

BIO 202 Exam 1 Questions With Correct Answers Updated 2024/2025 Graded A+. What are the properties of life? - correct answer *Cells and organization *Energy use and metabolism *Environmental response *Regulation and homeostasis *Growth and development *Reproduction *Biological evolution When was earth formed? - correct answer 4.55 billion years ago When did life on earth first appear? - correct answer 3.5 billion years ago What are the evolutionary mechanisms? - correct answer *Nonrando...