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GCU BIO-205 Exam 1 Questions Answered (Latest 2023) Verified Answers RATED A+
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GCU BIO-205 Exam 1 Questions Answered (Latest 2023) Verified Answers RATED A+
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GCU BIO-205 Exam 1 Questions Answered (Latest 2023) Verified Answers RATED A+Anton van Leeuwenhoek - correct answer ✅Father of microbiology
Created 1st magnifying glass
Coined the term 'Animalcules'
Animalcules - correct answer ✅First term used to describe microorganisms
What is the theory of Spontaneous Generation? - correct answer ✅Life arises spontaneously from non-living material (abiogenesis)
Who were the scientists involved in the theory of spontaneous generation? - correct answer ✅Francesco Redi (meat in jars experiment)
Louis Pasteur (Swan Neck Flask experiment)
John Tyndall (found heat resistant microbes) Ferdinand Cohn (discovered endospores)
Robert Koch (discovered anthrax disease by spore forming bacteria)
What were the structures present in hay infusions? - correct answer ✅Heat resistant microbes called endospores
GCU BIO-205 Exam 1 Questions Answered (Latest 2023) Verified Answers RATED A+ GCU BIO-205 Exam 1 Questions Answered (Latest 2023) Verified Answers RATED A+
Which experiment disproved TSG (theory of spontaneous generation)? - correct answer ✅Louis Pasteur swan neck flask experiment
What is bioremediation? - correct answer ✅The use of microorganisms to clean pollution
How do viruses grow? - correct answer ✅They cannot reproduce on their own. The must use a living host cell
What does the resolving power of a microscope do? - correct answer ✅Distinguish two objects that are close together
What does immersion oil do? - correct answer ✅Increases resolution and decreases light refraction
Which microscope is used to observe a specimen at the atomic level? - correct answer ✅Atomic Force Microscope (1980)
What does positive staining do? - correct answer ✅Contains positive charge that dyes the cells
GCU BIO-205 Exam 1 Questions Answered (Latest 2023) Verified Answers RATED A+ GCU BIO-205 Exam 1 Questions Answered (Latest 2023) Verified Answers RATED A+
What does negative staining do? - correct answer ✅Contains negative charge that
dyes the background
Which dyes contain a positive charge? - correct answer ✅Basic dyes
Which dyes contain a negative charge? - correct answer ✅Acidic dyes
What is the advantage of the size of prokaryotes? - correct answer ✅Their small size makes it so they have a rapid growth rate
Steps used for a gram stain:
1: Crystal Violet 2: Iodine 3: Alcohol 4: Safranin A: 1,3,4,2
B: 1,3,2,4
C: 2,3,1,4
D: 1,2,3,4 - correct answer ✅D
GCU BIO-205 Exam 1 Questions Answered (Latest 2023) Verified Answers RATED A+
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