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MCB3020 Asghari Exam 1 Questions and Answers (Graded A) $13.49   Add to cart

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MCB3020 Asghari Exam 1 Questions and Answers (Graded A)

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MCB3020 Asghari Exam 1 Questions and Answers (Graded A)MCB3020 Asghari Exam 1 Questions and Answers (Graded A)MCB3020 Asghari Exam 1 Questions and Answers (Graded A)MCB3020 Asghari Exam 1 Questions and Answers (Graded A)MCB3020 Asghari Exam 1 Questions and Answers (Graded A) What is the role of ...

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  • August 2, 2024
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NursingTutor1
MCB3020 Asghari Exam 1 Questions and
Answers (Graded A)


What is the role of microbes in maintaining temperature on earth? (Role of microbes in CO2 and CH4
recycling) - ANSWER - - Without the help of microbes to break down organic materials, the progress of
life on Earth would be constrained by the fixed amount of materials available to produce biomass

- Impact on atmospheric CO2 and CH4 levels, which impacts global climate change

- These greenhouse gases accumulate in the atmosphere, forming a "blanket" that traps heat

- The Earth would be uninhabitable without these gases, but the accumulation of gases in the
atmosphere cause global temperatures to gradually increases

- Microbes both consume and produce these gases, so they are deeply involved in carbon recycling



Top 3 causes of death - ANSWER - heart disease, cancer, stroke



aristotle - ANSWER - Greek philosopher who proposed the idea of spontaneous generation



spontaneous generation - ANSWER - suggests that living things could spontaneously arise from nonliving
things



Louis Pasteur - ANSWER - A French chemist, who disproved the theory of spontaneous generation
through the "swan neck flask experiment"

- germ theory of disease



Robert Hooke - ANSWER - coined the term "cell"



Antony can Leeuwenhoek - ANSWER - invented first microscope, first person to actually visualize
microbes

do viruses have kingdoms - ANSWER - viruses do not belong to any of the kingdoms or domains because
they are acellular and nonliving

, List membrane-bound organelles found in eukaryotes but not in prokaryotes. - ANSWER - Nucleus,
endoplasmic reticulum, Golgi apparatus, lysosomes, mitochondria and chloroplasts



Edward Jenner - ANSWER - developed first vaccine - the smallpox vaccine



Ignaz Semmelewis - ANSWER - dutch physician who advocated hand-washing



John Snow - ANSWER - father of epidemiology



Robert Koch - ANSWER - - stated Koch's postulates: criteria designed to establish a causal relationship
between a microbe and disease

- one microbe, one disease idea



Paul Ehrlich - ANSWER - Pharmacist who mixed and matched chemicals in order to find "magic bullets"
for a disease - chemicals that selectively killed the disease without harming human cells



Alexander Fleming - ANSWER - Discovered penicillin, first antibiotic



Frederick Griffith - ANSWER - discovered genetic transformation



James Watson and Francis Crick - ANSWER - discovered the structure of DNA



List and explain the impact of microbes on the environment (slide 4) - ANSWER - flow of energy, primary
producers, regulation of temp, symbiosis



cell - ANSWER - fundamental unit of life



microbe - ANSWER - An organism invisible to the naked eye, especially one that causes disease

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