Spontaneous generation Guides d'étude, Notes de cours & Résumés

ICT2621 2023 Assignment 3 solution Questions: Question 1 NB: When drawing data flow diagrams (DFDs), use the Gane and Sarson symbols/notation set. 1.1 Draw, name and describe the four symbols used in a data flow diagram (DFD). You may use a table to present your answer. (6) 1.2 Briefly describe the following with respect to DFDs: 1.2.1 Levelling(2) 1.2.2 Balancing(2) 1.2.3 Data dictionary(2)1.3 Draw a diagram of an example of each of the following showing the process, and the input(s...

Microbiology Straighterline (Quizzes) 2023/24 Studies by Emil von Behring and Shibasaburo Kitasato demonstrated that inactivated toxins can induce the synthesis of antitoxins in the blood of rabbits. These antitoxins (antibodies) are the basis of... a. humoral immunity b. cell-mediated immunity c. antibiotic immunity d. phagocyte-mediated immunity - ANSWER a. humoral immunity Who of the following first discovered that some blood leukoc...

Know what the Spontaneous Generation Debate was, which scientists played a part, and how each contributed to settling the debate. Who finally disproved it? How? Why didn't the other experiments prove/disprove spontaneous generation? CORRECT ANSWER penned by Aristotle, held its own for over 2000 years. Francesco Redi did not believe in spontaneous generation. 1668, set up an experiment to disprove it. (Meat in the flask experiment. One uncovered, one with a film, and one with a cork. Flies...

Microbial size definition CORRECT ANSWER organisms and acellular agents too small to be seen by the unaided eye contradictions to this definition CORRECT ANSWER -supersize microbial cells -microbial communities -viruses You are caring for a patient actively infected with Mycobacterium tuberculosis. Size of contaminated respiratory droplets are nm in size. Standard surgical masks are designed to block particles larger than 5 μm. Will wearing a standard surgical mask be an effective f...

Metabolism is: (a) all of the biochemical reactions taking place in an organism (b) all of the energy releasing biochemical reactions in an organism (c) all of the biochemical reactions in an organism that use cellular energy (d) the maintenance of pH at the neutral level preferred by most microorganisms Correct Answer-(a) all of the biochemical reactions taking place in an organism Pasteur's experiments with Swan Neck Flasks disproved which of the following theories on the origin of mi...

Medical Standards/Regulations vs Medical Guidelines - ANSWER-Medical Standards/Regulations - are mandatory Medical Guidelines - are advisory / at medical examiner discretion Outcomes (3 results) and maxed interval - ANSWER-1. Certified - max is 2 years 2. Disqualified 3. Determination pending - 45 days Minimal Retention Period for Medial Records - ANSWER-3 years T/F Driver must carry valid ME Certificate - ANSWER-True T/F Motor carrier does not have to maintain a copy of the ME...

Microbiology UTA 2460 Chapter 3 Latest Version 100% Pass spontaneous generation ancient belief: life can arise from nonliving matter Key scientists of spontaneous generation Francesco Redi, John Needham, Lazzaro Spallanzani Francesco Redi This scientist disproved spontaneous generation by showing that maggots do not spontaneously arise from decaying meat. John Needham Believed there was a life force that caused spontaneous generation Lazzaro Spallanzani replicated redi and ne...

What is the concept of spontaneous generation? correct answers living organisms could develop from nonliving or decomposing matter Who challenged the concept of spontaneous generation by showing that maggots on decaying meat came from flies, not from the meat itself? correct answers Francesco Redi Who showed that mutton broth boiled in flasks and then sealed could still develop microorganisms, which supported the theory of spontaneous generation? correct answers John Needham Who showed ...

There are two cell types - prokaryotic and eukaryotic. List the 7 classes or basic types of microorganisms and identify each as prokaryotic, eukaryotic, both prokaryotic and eukaryotic, or neither. - ANSWER 1. Bacteria- prokaryotic 2. Archaea- prokaryotic 3. Algae- eukaryotic 4. Fungi- eukaryotic 5. Protozoa- eukaryotic 6. Helminthes- eukaryotic 7. Viruses- neither What is a bacterial endospore? Explain how endospore-forming bacteria could cause a scientist to believe in spontaneous gen...

Aristotle Correct Answer-Life can arise from nonliving matter, if that matter contained pneuma (vital heat). Van Helmont Correct Answer-Mice could arise from rags and wheat kernels left in an open container for 3 weeks. Other than that observation he was a remarkable scientist and the founder of pneumatic chemistry. Francesco Redi Correct Answer-One of the first experiments to refute spontaneous generation. Flies do not spontaneously generate from raw meat. John Needham Correct Answer...