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MCB3020 Exam 1 Questions with Correct Answers
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MCB3020 Exam 1 Questions with Correct AnswersMCB3020 Exam 1 Questions with Correct AnswersMCB3020 Exam 1 Questions with Correct AnswersMCB3020 Exam 1 Questions with Correct AnswersMCB3020 Exam 1 Questions with Correct Answers What are two types of fungi? - ANSWER - Yeasts and molds What are the...

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  • August 5, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • mcb3020 exam 1 answers
  • mcb3020 exam 1 questions with correct answers
  • what are two types of fungi answer yeasts and

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MCB3020 Exam 1 Questions with
Correct Answers
What are two types of fungi? - ANSWER - Yeasts and molds


What are the 4 most common characteristics in the domain "Bacteria?" - ANSWER - 1) Single-
celled


2) Peptidoglycan cell wall


3) Lack membrane-bound organelles


4) Lack a nucleus


Hydrogen gas theory on mitochondria - ANSWER - Suggests that the host became dependent
on the hydrogen gas produced by the symbiont


What are three positive roles that bacteria plays in the human body? - ANSWER - 1) Produce
vitamins in the intestines


2) Contribute to immune system development


3) Help digest food in the intestines


In bacteria and your cells, RNA is synthesized using _______ as a template and then the RNA
serves as a template for the synthesis of ________ - ANSWER - DNA / genes; protein(s) /
polypeptides


Which component of bacterial cells spontaneously forms vesicles? - ANSWER - lipids

, Why is it believed that DNA became the storage molecule for genetic information? - ANSWER -
It is more chemically stable than RNA


The endosymbiotic theory is supported by the finding that mitochondria contain _______ similar
to bacteria - ANSWER - ribosomes and DNA


In addition to mutation, bacteria and archaea increase their genetic diversity through which
mechanism? - ANSWER - Horizontal gene transfer
In addition to mutation, eukaryotes increase their genetic diversity through which mechanism? -
ANSWER - sexual reproduction


Some microorganisms can be macroscopic because they are _________ - ANSWER -
multicellular


The control and spread of communicable human diseases is the main concern of who? -
ANSWER - Public health microbiologists


Tracking down unidentified human pathogens falls within which field of microbiology? -
ANSWER - Medical


In addition to characterizing the body's defenses to infection, the field of immunology also deals
with ______ and _________ - ANSWER - allergies and autoimmune diseases


Which entities are included as microorganisms? - ANSWER - Organisms and acellular biological
entities


How are macroscopic microorganisms distinguished from other multicellular life forms? -
ANSWER - They lack differentiated tissues (and/or cell types)
pathovar - ANSWER - strains that differ by their plant host and the disease(s) they cause


bionomial system of nomenclature (classification) - ANSWER - each organism has 2 names:


Genus name: italicized and capitalized
- Can be abbreviated after first use

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