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Portage Learning / BIOD 171 Microbio exam answers Latest 2024
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1. A virus is classified as a microbe.True. Although viruses are not living and as such are not considered microorganisms, they can, however, be classified as microbes, a more general term that includes microorganisms and viruses. 2. True or False: The smallest biological unit of life is the mol...

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  • February 25, 2024
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  • 2023/2024
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Portage Learning / BIOD 171 Microbio exam
lOMoARcPSD|3013804




Portage Learning / BIOD 171 Microbio exam answers Latest


1. A virus is classified as a microbe.True. Although viruses are not living and as such are
not considered microorganisms, they can, however, be classified as microbes, a more
general term that includes microorganisms and viruses.


2. True or False: The smallest biological unit of life is the molecule.False. The smallest
biological unit of life is the cell.


3. What are the 4 main types of macromolecules found in cells?Proteins, Lipids,
Nucleic acids and Polysaccharide


1. Proteins are formed from various combinations of of which there are
known forms.Amino acids, 20


2. How many amino acids are classified as being essential amino acids?9


1. What are the two major types of nucleic acids and their roles?There are two major
types of nucleic acids: DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). Nucleic
acids are chemical molecules that carry genetic information within the cell. DNA contains a
vast amount of hereditary information and is responsible for the inheritable characteristics
of living organisms. RNA is responsible for deciphering the hereditary information in DNA
and using it to synthesize proteins.


1. Complete the following RNA strand and indicate how many bonds are
formed for each complementary pair:


3’ GGUCAUCG 5’


5’ CC AGC 3’


3’ GGUCAUCG 5’


5’ CCAGUAGC 3’


There are 2 bonds formed between A and U, and 3 bonds between G and C.




1
[Date]

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Portage Learning / BIOD 171 Microbio exam




1. The plasma membrane (select all that are true):BD


A. Only restricts movement of materials into the cell




2
[Date]

, lOMoARcPSD|3013804




Portage Learning / BIOD 171 Microbio exam


B. Is often a bilayer comprised of lipids


C. Cannot prevent essential nutrients from escaping


D. Contains hydrophobic tails pointing inward


2. Carbon, Hydrogen and Oxygen atoms come together to form what primary
macromolecule? Give an example.Polysaccharides. Glucose, sucrose and cellulose are
all acceptable answers.


True of False: The genetic material within a prokaryotic cell is contained within a
membrane- enclosed region.False. Only eukaryotic cells contain its genetic material within
a nucleus


True or False: Prokaryotic cells can be subdivided into Bacteria and Archaea.True


Describe the 4 basic bacterial morphologies.Coccus (round/spherical), bacillus (rod),
vibrio (curved rod) or spirillum (spiral/corkscrew).


True or False: Archaea is noted for its ability to survive under harsh conditions.True.
Archaea can often be found in harsh conditions such as high salt levels, high acid
conditions, high temperatures and even oxygen-poor conditions.


1. Animalia, Plantae, Fungi and Protista are all classification under what type of organism?
B


A. Bacteria


B. Eukarya


C. Archaea


D. Virus


2. All multicellular microorganisms classified as Animalia are autotropic.False
—they are heterotropic.


3. Microorganisms classified as obtain most of their energy by converting
light energy into chemical energy.Plantae

, lOMoARcPSD|3013804




Portage Learning / BIOD 171 Microbio exam



1. A defining characteristic of fungi is the presence of chitin in the cell walls. Which of
following also

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