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Exam (elaborations)

Portage Microbiology Lecture Exam 1 questions with verified solutions

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Portage Microbiology Lecture Exam 1 questions with verified solutionsPortage Microbiology Lecture Exam 1 questions with verified solutionsPortage Microbiology Lecture Exam 1 questions with verified solutionsPortage Microbiology Lecture Exam 1 questions with verified solutions

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Portage Microbiology Lecture
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Portage Microbiology Lecture








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Institution
Portage Microbiology Lecture
Course
Portage Microbiology Lecture

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Uploaded on
May 26, 2025
Number of pages
4
Written in
2024/2025
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Exam (elaborations)
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PortageMicrobiologyLectureExam1 .p
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n .p
n




1. Complete the following DNA strand,andindicatehow manybonds are n.p n.p n.p n.p .p
n n.p n.p n.p n.p n.p




formed for each complementary pair:
n.p n.p n.p n.p n.p




3'GGTCATCG5'5'CCAGC3':5'CCAGTAGC3'
.p
n .p
n .p
n .p
n .p
n .p
n .p
n .p
n




Therearetwohydrogenbondsbetweenthymineandadenine.Therearethree hydrogen
n.p n.p n.p n.p n.p n.p n.p n.p n.p n.p n.p




bonds between cytosine and guanine.
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In the strand above, there are eight complementary pairs.
n.p n.p n.p n.p n.p n.p n.p n.p




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




3. True or False:The smallest biological unit of life is the molecule.:False
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n




4. TrueorFalse:Thegeneticmaterialwithinaprokaryoticcellis contained
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n n.p n.p n.p n.p n.p n.p n.p n.p




within a membrane-enclosed region.: False
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5. What are the four maintypes ofmacromoleculesfound in cells?:Proteins, n.p n.p n.p n.p n.p n.p n.p n.p n.p n.p .p
n




Lipids, Nucleic acids and Polysaccharides
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6. Trueor False:A virus is considered a microorganism:False
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7. Describe the 4 basic bacterial morphologies.:1.Coccus:bacteria is round or n.p n.p n.p n.p n.p .p
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spherical
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2. Bacillus:bacteria is a rod shape .p
n n.p n.p n .p n.p




3. Vibrio:bacteria is a curved rod shape .p
n n.p n .p n.p n .p n .p




4. Spirillum:bacteria is in a spiral or corkscrew shape .p
n n.p n.p n.p n.p n.p n.p n.p




8. TrueorFalse:Archaea,aeukaryoticclassofmicroorganisms,isnotedfor its
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n .p
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ability to survive under harsh conditions: False.They are prokaryotic.
n.p n.p n.p n.p n.p n.p n.p .p
n n.p n.p




9. Wherecanthetwomajortypesofnucleicacidsbefoundinthecellandwhat are .p
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their roles?: DNA and RNA;
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DNA houses hereditary information and determines the inherited traits of a living
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organism.
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RNA is the hereditary information of some microbes, like some viruses. In organisms
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n .p
n .p
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wherein DNA is the hereditary material, the function of RNA is to interpret the hered- itary
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n n.p




information found in DNA and ue that information to help produce proteins.
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10. What are the two major types of nucleic acids and their roles?:There are two n.p n.p n.p n.p n .p n.p n.p n.p n.p n.p n.p n.p n.p n.p




majortypesofnucleicacids:DNA(deoxyribonucleicacid)andRNA(ribonucleic acid).
.p
n .p
n .p
n .p
n .p
n .p
n .p
n .p
n .p
n .p
n .p
n n.p




Nucleicacidsarechemicalmoleculesthatcarrygeneticinformationwithinthe cell.DNA
.p
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n .p
n .p
n .p
n .p
n .p
n .p
n .p
n .p
n .p
n n.p .p
n




containsavastamountofhereditaryinformationandisresponsibleforthe inheritable
.p
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n .p
n .p
n .p
n .p
n .p
n .p
n .p
n .p
n .p
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n n.p




characteristics of living organisms.RNA is responsible for deciphering the hereditary
n.p n.p n.p n.p n.p n.p n.p n.p n.p n.p n.p




information in DNA and using it to synthesize proteins.
n.p n.p n.p n.p n.p n.p n.p n.p n.p




11. The plasma membrane (select all that are true): n.p n.p n.p n.p n.p n.p n.p




1. Only restricts movement of materials into the cell n.p n.p n.p n.p n.p n.p n.p




2. Is often a bilayer comprised of lipids
n.p n.p n.p n.p n.p n.p




3. Cannotprevent essential nutrients from escaping n.p n.p n.p n.p n.p




4. Containshydrophobic tails pointing inward:2, 4 n.p n.p n.p n.p .p
n n.p




1/ 4 n.p n.p

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