MCB2010: Exam 1 Study Guide
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Answers.
Microorganisms - Answer organisms that are too small to be seen with the unaided eye
Microbes in our life - Answer -pathogenic (disease-causing)
-organic (carbon-based) (proteins, carbs, DNA)
What do microbes produce? - Answer -produce industrial chemicals such as ethanol and
acetone
-produce fermented foods such as vinegar, cheese and bread
-produce products in manufacturing (cellulase) and treatment (insulin)
What are the 3 classifications in the ecosystem? - Answer 1) producers: plants,
photosynthetic bacteria
2) consumers: animals
3) decomposers: bacteria and fungi
What does the knowledge of microorganisms allow humans to do? - Answer -prevent food
spoilage
-prevent disease occurrence
-led to ascetic techniques to prevent contamination in median and microbiology labs
Ethyl alcohol - Answer sugar -----> alcohol by yeast for fermentation
Scientific name for yeast - Answer Saccharomyces cerevisiae
What is the cell wall made up of? - Answer cellulose
What is the enzyme that digests cellulose? - Answer cellulase
Who was the creator of the scientific nomenclature system? - Answer Linnaeus
What are the two names for each organism? - Answer genus and species
, Genus - Answer capital letter, underlined or italicized
Species - Answer lower case letter, underlined or italicized
Escherichia coli - Answer -honors discoverer (Theodor Escherich)
-describes the bacteria's habitat -the colon
Staphylococcus aureus - Answer -describes the clustered (staphylo)
-spherical (cocci) cells
-describes the gold-colored (aureus) colonies
Bacteria - Answer -prokaryotes
-peptidoglycan cell walls
-binary fission
-for energy, use organic chemicals, inorganic chemicals or photosynthesis
Archaea - Answer -prokaryotic
-lack peptidoglycan
-cell wall is made up of pseudomorein
-live in extreme environments
-include methanogens, extreme halophiles, extreme thermophiles
What are the 3 domains? - Answer 1) bacteria
2) archaea
3) eukarya
Fungi - Answer -eukaryotes
-chitin cell walls
-heterotrophs (obtain food and energy through other organic chemicals)
-use organic chemicals for energy
What are the 3 categories of Fungi? - Answer 1) Yeasts-unicellular
2)Molds- multicellular
3) Mushrooms- multicellular
Questions with Quality /Verified
Answers.
Microorganisms - Answer organisms that are too small to be seen with the unaided eye
Microbes in our life - Answer -pathogenic (disease-causing)
-organic (carbon-based) (proteins, carbs, DNA)
What do microbes produce? - Answer -produce industrial chemicals such as ethanol and
acetone
-produce fermented foods such as vinegar, cheese and bread
-produce products in manufacturing (cellulase) and treatment (insulin)
What are the 3 classifications in the ecosystem? - Answer 1) producers: plants,
photosynthetic bacteria
2) consumers: animals
3) decomposers: bacteria and fungi
What does the knowledge of microorganisms allow humans to do? - Answer -prevent food
spoilage
-prevent disease occurrence
-led to ascetic techniques to prevent contamination in median and microbiology labs
Ethyl alcohol - Answer sugar -----> alcohol by yeast for fermentation
Scientific name for yeast - Answer Saccharomyces cerevisiae
What is the cell wall made up of? - Answer cellulose
What is the enzyme that digests cellulose? - Answer cellulase
Who was the creator of the scientific nomenclature system? - Answer Linnaeus
What are the two names for each organism? - Answer genus and species
, Genus - Answer capital letter, underlined or italicized
Species - Answer lower case letter, underlined or italicized
Escherichia coli - Answer -honors discoverer (Theodor Escherich)
-describes the bacteria's habitat -the colon
Staphylococcus aureus - Answer -describes the clustered (staphylo)
-spherical (cocci) cells
-describes the gold-colored (aureus) colonies
Bacteria - Answer -prokaryotes
-peptidoglycan cell walls
-binary fission
-for energy, use organic chemicals, inorganic chemicals or photosynthesis
Archaea - Answer -prokaryotic
-lack peptidoglycan
-cell wall is made up of pseudomorein
-live in extreme environments
-include methanogens, extreme halophiles, extreme thermophiles
What are the 3 domains? - Answer 1) bacteria
2) archaea
3) eukarya
Fungi - Answer -eukaryotes
-chitin cell walls
-heterotrophs (obtain food and energy through other organic chemicals)
-use organic chemicals for energy
What are the 3 categories of Fungi? - Answer 1) Yeasts-unicellular
2)Molds- multicellular
3) Mushrooms- multicellular
