Endospores Study guides, Class notes & Summaries

Question 1 Correct 4.00 points out of 4.00 Flag question Question text Whose work on spontaneous generation first demonstrated the existence of a very heat- resistant form of bacteria that are called endospores? Select one: a. Schwann b. Redi c. Tyndall d. Pasteur Feedback The correct answer is: Tyndall Question 2 Correct 4.00 points out of 4.00 Flag question

What is bacitracin? - ️️A component of antibiotic ointments What are signs of an allergic reaction? - ️️cracking, bleeding, excessive swelling, bumps, dry skin, oozing pain, itchy skin, raise blisters, scabbing, burning, tender to touch, refuses to heal. What is sanitizer? - ️️an agent that reduces the number of microorganisms on a surface ex. countertops, sinks, door knobs / cavi wipes What is a disinfectant? - ️️stronger chemical that destroys bacteria on objects that ...

what are the basic components of an annotated bibliography? correct answer: citation, summary, evaluation, and assessment of relevance to research. what is a dissecting microscope and what is it used for? correct answer: observes large, relatively opaque objects. Can either use reflective light (light form above) or transmitted light (light from below). what is a compound microscope and what is it used for? correct answer: usually uses transmitted light, observes fine details in small s...

Ignaz Semmelweis Chapter 9: Physical and Chemical Control Of Microbes Rated A+ discuss the historical roles played by Ignaz Semmelweis and Joseph Lister in preventing the spread of infection. (you will probably have to do a little Internet research to find out more information about these two men) -Ignaz Semmelweis: Semmelweis recommended that hands be scrubbed in a chlorinated lime solution before every patient contact and particularly after leaving the autopsy room (women's infecti...

OPIM: other potential infectious material When Should Masks be Worn: during all times when splash, splatter, spray and aerosols may occur OSHA Regulations Mandates that Lab Coats be Laundered by who clinic or outside facility hired by clinic Bioburden: debris, microorganisms left on surfaces, (such as saliva and blood) Antibiotics: kills microbes in our body Antiseptics: kills microbes on skin or body surface Disinfectants: kills microbes on inani...

Chapter 7 – Microbiology Questions And Answers 2024/2025 A+ which microbial structures do antimicrobial agents target? - ANS-cell wall - prevent cell from bursting PM - permeability DNA - proteins and enzymes what factors determine whether an antimicrobial is effective? - ANS-time of exposure cell wall type concentration of microbes concentration of antimicrobial temperature why can certain milk proudcts and fruit juices be stored as RT and not spoil? - ANS-they go under UHT (ultra ...

UNIVERSITY OF ALABAMA BIOL 1353| PRE-NURSING MICROBIOLOGY| FINAL EXAM 2024| ACTUAL EXAM QUESTIONS AND CORRECT ANSWER| ALREADY PASSED AND GRADED A+ All of the following grow inside host cells except A) Babesia. B) Brucella. C) Dengue fever virus. D) Leishmania. E) None of the above. - E) None of the above. Which of the following is not a characteristic of Bacillus anthracis? A) Aerobic B) Gram-positive C) Forms endospores D) Found in soil E) All of the above are characteristics of ...

Hershey and Chase performed an experiment in order to determine how bacteriophages infect bacteria. What did they find? The bacteriophage injects DNA into the host cell. This was found because, after centrifugation, the pellet was radioactive The largest difference between a Gram + and Gram - bacterial cell is: The gram + cell has a much thicker peptidoglycan layer Why does a Gram + cell stain blue/purple in a gram stain? The Gram + cell stains blue/purple because crystal violet rem...

what connects bacterial cells during the exchange of genetic material? a. flagellum b. nucleoid region c. cell wall d. pilus d. pilus Which of the following is a function of peptidoglycan? a. Promotes phagocytosis b. Protects cells from bursting c. Allows bacteria to adhere to surfaces and each other d. Regulates movement of substances into and out of the bacterial cell b. Protects cells from bursting What term is used to describe bacterial cells that are spherical in shape? a. Baci...