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MCB 2610 Exam 1 Questions with complete solution 2024/2025
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MCB 2610 Exam 1 Questions with complete solution 2024/2025 MCB 2610 Exam 1 Microbiology - correct answer The study of microbes Micro bio examines... - correct answer How microbes interact with humans and food and how they can be used by humans Prokaryotic cells - correct answer Lac...

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  • October 16, 2024
  • 15
  • 2024/2025
  • Exam (elaborations)
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MCB 2610 Exam 1
Microbiology - correct answer ✔The study of microbes


Micro bio examines... - correct answer ✔How microbes interact with humans
and food and how they can be used by humans


Prokaryotic cells - correct answer ✔Lack a true membrane-delimited nucleus


Eukaryotic cells - correct answer ✔Have a membrane enclosed nucleus
More complex morphologically


Carl Woese used ribosomal RNA to divide organisms into... - correct answer
✔Domains:
Bacteria
Archaea
Eukarya


Describe Bacteria - correct answer ✔Usually single-celled
Majority have cell walls with peptidoglycan (gram positive)
Most lack a membrane bound nucleus
Everywhere, even extreme places
Come cause disease but most are beneficial
asexual reproduction


Describe Archaea - correct answer ✔Distinguished from Bacteria by unique
rRNA sequences

, Lack peptidoglycan and have unique membrane lipids (gram negative)
Some have unusual metabolic characteristics
Extreme environments
asexual reproduction


Describe Eukarya - Eukaryotes - correct answer ✔Generally larger than B
and A
Plants, Animals
Microorganisms like protists - algae, protozoa, slime molds, water molds
Fungi - yeast (unicellular), molds (multicellular) - primarily decomposers


Acellular Infectious agents - correct answer ✔Viruses - smallest of all
microbes, simple (consist of proteins and nucleic acids), require a host cell to
replicate
Virouds and virusoids - infectious agents composed of RNA
Prions - infectious proteins


Define Life - correct answer ✔Metabolism
Growth
Reproduction
Genetic variation/evolution
Response/adaptation to environment
Homeostasis


Macromolecules necessary for life - correct answer ✔Lipids, Proteins, Carbs,
nucleic acids

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