BIOL 206 EXAM 1 - DONNA JANES QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||BRAND NEW
Microbes are _____________ meaning that they can be found
everywhere from the earth's crust to plants and animals
Ans✓✓✓Ubiquitous
Which microorganisms are prokaryotic? Ans✓✓✓Bacteria and Archaea
Which microorganisms are eukaryotic? Ans✓✓✓Fungi, protozoa, algae,
helminthes
Which microorganisms are acellular (neither prokaryotic nor
eukaryotic)? Ans✓✓✓Viruses
What makes up the cell walls of bacteria? Ans✓✓✓peptidoglycan
Penicillin inhibits what in bacteria? Ans✓✓✓inhibits bacteria from
making peptidoglycan walls
How do bacteria divide? Ans✓✓✓binary fission
Which microorganism do antibiotics work against? Ans✓✓✓Bacteria
,_________ % of microorganisms are pathogenic Ans✓✓✓Less than 1%
List the functions of microorganisms as a whole Ans✓✓✓1. carbon
producers via photosynthesis
2. produce industrial chemicals
3. produce fermented foods
4. recycle carbon, nutrients, sulfur, and phosphorous
5. serve as a food source in the ocean
Tre/False: archaea usually don't cause issues in humans Ans✓✓✓True
True/False: archaea causes dental plaque Ans✓✓✓true
True/False: archaea has walls made of peptidoglycan just like bacteria
cell walls Ans✓✓✓false
Different ______________ allows archaea to withstand
________________________ such as high temperatures Ans✓✓✓cell
membrane lipids; extreme conditions
Archaea are thermophiles, halophiles, methanogens. Define these terms.
Ans✓✓✓Archaea can withstand 1) high heat 2) high salt 3) high
methane gas levels
,What kind of eukaryotic microorganism is not a common human
pathogen? Ans✓✓✓Algae
Helminths such as flatworms and round worms are types of
__________________ Ans✓✓✓Parasites
True/False: protozoans produce mild infection in humans Ans✓✓✓false,
they produce the nastiest infections
Protozoans love ________________ (warm/cold) environments
Ans✓✓✓warm
__________________ are becoming more prevalent bc of global
warming Ans✓✓✓protozoans
Giardia is a type of ________________ Ans✓✓✓protozoan
Giardia causes what well known condition among hikers/campers?
Ans✓✓✓Backpackers diarrhea
Giardia makes a _____________ making it hard for _____________
tablets to kill them off Ans✓✓✓cyst; chlorine
True/False: viruses are independently living Ans✓✓✓false
, Viruses are more complex than _______________ but less complex than
_______________ Ans✓✓✓molecules; cells
Dr J argues that viruses are __________________ (living/nonliving)
Ans✓✓✓living
Define obligate intracellular parasite Ans✓✓✓Only replicate inside a
living host
List the two arguments for viruses being non living Ans✓✓✓they
cannot reproduce or do metabolism on their own; they are missing lipids
and carbohydrates (two of the essential macromolecules of life)
List the argument for viruses being living Ans✓✓✓They consist of
DNA or RNA court surrounded by a protein coat (protein coat + nucleic
acid = nucleocapsid)
Prions are a subclass of viruses which are _______________
(cellular/acellular) Ans✓✓✓acellular
Prions _______________ (do/do not) contain DNA/RNA Ans✓✓✓do
not
How do microorganisms produce energy? Ans✓✓✓photosynthesis
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||BRAND NEW
Microbes are _____________ meaning that they can be found
everywhere from the earth's crust to plants and animals
Ans✓✓✓Ubiquitous
Which microorganisms are prokaryotic? Ans✓✓✓Bacteria and Archaea
Which microorganisms are eukaryotic? Ans✓✓✓Fungi, protozoa, algae,
helminthes
Which microorganisms are acellular (neither prokaryotic nor
eukaryotic)? Ans✓✓✓Viruses
What makes up the cell walls of bacteria? Ans✓✓✓peptidoglycan
Penicillin inhibits what in bacteria? Ans✓✓✓inhibits bacteria from
making peptidoglycan walls
How do bacteria divide? Ans✓✓✓binary fission
Which microorganism do antibiotics work against? Ans✓✓✓Bacteria
,_________ % of microorganisms are pathogenic Ans✓✓✓Less than 1%
List the functions of microorganisms as a whole Ans✓✓✓1. carbon
producers via photosynthesis
2. produce industrial chemicals
3. produce fermented foods
4. recycle carbon, nutrients, sulfur, and phosphorous
5. serve as a food source in the ocean
Tre/False: archaea usually don't cause issues in humans Ans✓✓✓True
True/False: archaea causes dental plaque Ans✓✓✓true
True/False: archaea has walls made of peptidoglycan just like bacteria
cell walls Ans✓✓✓false
Different ______________ allows archaea to withstand
________________________ such as high temperatures Ans✓✓✓cell
membrane lipids; extreme conditions
Archaea are thermophiles, halophiles, methanogens. Define these terms.
Ans✓✓✓Archaea can withstand 1) high heat 2) high salt 3) high
methane gas levels
,What kind of eukaryotic microorganism is not a common human
pathogen? Ans✓✓✓Algae
Helminths such as flatworms and round worms are types of
__________________ Ans✓✓✓Parasites
True/False: protozoans produce mild infection in humans Ans✓✓✓false,
they produce the nastiest infections
Protozoans love ________________ (warm/cold) environments
Ans✓✓✓warm
__________________ are becoming more prevalent bc of global
warming Ans✓✓✓protozoans
Giardia is a type of ________________ Ans✓✓✓protozoan
Giardia causes what well known condition among hikers/campers?
Ans✓✓✓Backpackers diarrhea
Giardia makes a _____________ making it hard for _____________
tablets to kill them off Ans✓✓✓cyst; chlorine
True/False: viruses are independently living Ans✓✓✓false
, Viruses are more complex than _______________ but less complex than
_______________ Ans✓✓✓molecules; cells
Dr J argues that viruses are __________________ (living/nonliving)
Ans✓✓✓living
Define obligate intracellular parasite Ans✓✓✓Only replicate inside a
living host
List the two arguments for viruses being non living Ans✓✓✓they
cannot reproduce or do metabolism on their own; they are missing lipids
and carbohydrates (two of the essential macromolecules of life)
List the argument for viruses being living Ans✓✓✓They consist of
DNA or RNA court surrounded by a protein coat (protein coat + nucleic
acid = nucleocapsid)
Prions are a subclass of viruses which are _______________
(cellular/acellular) Ans✓✓✓acellular
Prions _______________ (do/do not) contain DNA/RNA Ans✓✓✓do
not
How do microorganisms produce energy? Ans✓✓✓photosynthesis
