UTA MICROBIOLOGY TEST 2 - CHAPTER 4,5,6 STUDY
GUIDE QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+
What is considered an extremely diverse group? Ans✓✓✓eukaryotic
microbes
Why is the eukaryotic microbes considered extremely diverse?
Ans✓✓✓they all can have...
- different life cycles and reproduction modes
- many morphologically
specialized structures
- specialized nutritional needs
Are viruses and bacteria responsible for all the pathogens against
humans? Ans✓✓✓no, there are some eukaryotic pathogens
What is a example of a popular eukaryotic pathogen? Ans✓✓✓the
protozoal disease malaria
What is the term that was historically used to refer to a diverse group of
microscopic eukaryotic organisms? Ans✓✓✓protist
What are protroza? Ans✓✓✓non-photosynthetic
motile organisms that are always unicellular
,What are protoza? Ans✓✓✓animal-like
hetertrophic
unicellular organisms
What is an example of protist? Ans✓✓✓plankton
What are plankton? Ans✓✓✓microorganisms that drift or float in water,
moved by current
What are the two categories of plankton? Ans✓✓✓zooplankton and
phytoplankton
What are some defining properties of zooplankton? Ans✓✓✓they are
motile and nonphotosynthetic
What are some defining properties of phytoplankton? Ans✓✓✓they are
photosynthetic
Where does most of the world oxygen come from?
Ans✓✓✓phytoplankton
What kind of plankton are considered more animal like?
Ans✓✓✓zooplankton
,Why do protists not have a defined category in the tree of life?
Ans✓✓✓this is because they are peppered throughout the whole tree.
They resemble many different shapes and functions so they fall into
many different cateogories
What are some characteristics of protozoa? Ans✓✓✓they have a huge
variety of....
- unicellular
- non-photosynthetic
- motile
eukaryotic microbes
What are the 2 life stages of protoza? Ans✓✓✓trophozoites and cysts
what is the trophozoites stage? Ans✓✓✓feeding and growth stages
what is the cysts stage? Ans✓✓✓encapsulated stage to protect against
harsh environments
(dormant stage)
What does the cysts stage resemble from bacteria? Ans✓✓✓endospores
, How can protoza reproduce? Ans✓✓✓through sexual or asexual
reproduction
define encystment Ans✓✓✓when a trophozoite becomes a cyst
define excystment Ans✓✓✓when conditions become favorable, the
cysts are triggered by environmental cues to become active again
What do trophozoites feed on? Ans✓✓✓small particulate food sources
such as bacteria
Can Protozoa exist in only a trophozoite stage? Ans✓✓✓yes while some
as use the cyst stage
What are some examples of asexual reproduction protozoa's use?
Ans✓✓✓- binary fission
- budding
- schizogeny
define schizogeny Ans✓✓✓the nucleus of the cells divides multiple
times before the cell divides into smaller cells.
What are the products of schizogony called? Ans✓✓✓merozoites
GUIDE QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+
What is considered an extremely diverse group? Ans✓✓✓eukaryotic
microbes
Why is the eukaryotic microbes considered extremely diverse?
Ans✓✓✓they all can have...
- different life cycles and reproduction modes
- many morphologically
specialized structures
- specialized nutritional needs
Are viruses and bacteria responsible for all the pathogens against
humans? Ans✓✓✓no, there are some eukaryotic pathogens
What is a example of a popular eukaryotic pathogen? Ans✓✓✓the
protozoal disease malaria
What is the term that was historically used to refer to a diverse group of
microscopic eukaryotic organisms? Ans✓✓✓protist
What are protroza? Ans✓✓✓non-photosynthetic
motile organisms that are always unicellular
,What are protoza? Ans✓✓✓animal-like
hetertrophic
unicellular organisms
What is an example of protist? Ans✓✓✓plankton
What are plankton? Ans✓✓✓microorganisms that drift or float in water,
moved by current
What are the two categories of plankton? Ans✓✓✓zooplankton and
phytoplankton
What are some defining properties of zooplankton? Ans✓✓✓they are
motile and nonphotosynthetic
What are some defining properties of phytoplankton? Ans✓✓✓they are
photosynthetic
Where does most of the world oxygen come from?
Ans✓✓✓phytoplankton
What kind of plankton are considered more animal like?
Ans✓✓✓zooplankton
,Why do protists not have a defined category in the tree of life?
Ans✓✓✓this is because they are peppered throughout the whole tree.
They resemble many different shapes and functions so they fall into
many different cateogories
What are some characteristics of protozoa? Ans✓✓✓they have a huge
variety of....
- unicellular
- non-photosynthetic
- motile
eukaryotic microbes
What are the 2 life stages of protoza? Ans✓✓✓trophozoites and cysts
what is the trophozoites stage? Ans✓✓✓feeding and growth stages
what is the cysts stage? Ans✓✓✓encapsulated stage to protect against
harsh environments
(dormant stage)
What does the cysts stage resemble from bacteria? Ans✓✓✓endospores
, How can protoza reproduce? Ans✓✓✓through sexual or asexual
reproduction
define encystment Ans✓✓✓when a trophozoite becomes a cyst
define excystment Ans✓✓✓when conditions become favorable, the
cysts are triggered by environmental cues to become active again
What do trophozoites feed on? Ans✓✓✓small particulate food sources
such as bacteria
Can Protozoa exist in only a trophozoite stage? Ans✓✓✓yes while some
as use the cyst stage
What are some examples of asexual reproduction protozoa's use?
Ans✓✓✓- binary fission
- budding
- schizogeny
define schizogeny Ans✓✓✓the nucleus of the cells divides multiple
times before the cell divides into smaller cells.
What are the products of schizogony called? Ans✓✓✓merozoites
