MICROBIOLOGY EXAM 3 NEWEST ACTUAL EXAM COMPLETE 300 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
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MICROBIOLOGY EXAM 3 NEWEST 2024-2025 ACTUAL
EXAM COMPLETE 300 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
Which molecule provides the template that is directly used to make a
protein in translation
a. tRNA
b mRNA
c. the gene
d. DNA - ANSWER- b. mRNA
A bacteriophage (phage) infects
a. bacteria
b. mammals
c. only humans
d. arthropods
e. any eukaryote - ANSWER- a. bacteria
Which microorganism commonly produces endospores
a. Enterobacter
b. Proteus
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c. Escherichis
d. Clostridium - ANSWER- d. Clostridium
Which type of RNA is used to make ribosomes
a. DNA
b. rRNA
c. mRNA
d. tRNA - ANSWER- b. rRNA
Proglottids are
a. viral structures
b. prokaryotic structures
c. reproductive structure in tapeworms
d. none of the above - ANSWER- c. reproductive structures in
tapeworms
What is the final product of translation
a. mRNA
b. proteins
c. amino acids
d. DNA
e. none of the above - ANSWER- b. proteins
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What carries the amino acid to the correct spot on an mRNA molecule
a. Ribosomes
b. proteins
c. tRNA
d. codons - ANSWER- c. tRNA
In the inducible lac-operon, when lactose is not present the operon is
a. off, with no transcription occurring
b. on, with transcription occurring
c. neither, the presence of absence of lactose is not relevant - ANSWERa. off, with no transcription occurring
Which genus of bacteria causes diarrhea with massive water and
electrolyte loss and is transmitted through fecal contaminated water
a. Bacillus
b. Clostridium
c. Escherichia
d. Vibrio
e. Proteus - ANSWER- d. Vibrio
Which of the following is not a trait shared by both prokaryotic domains
a. all are unicellular
b. all have a plasma membrane
c. both domains have organisms that can undergo methanogenesis
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d. both domains have anaerobic and aerobic representatives - ANSWERc. both domains have organisms the can undergo methanogenesis
Which of the following is acellular
a. fungi
b. protozoans
c. algae
d. bacteria
e. viruses - ANSWER- e. viruses
Place the following steps in a lytic infection in the correct order. 1-
penetration, 2-release, 3-assembly, 4-attachment, 5-biosynthesis
a. 1,2,3,4,5
b. 4,1,5,3,2
c. 4,1,3,5,2
d. 4,5,1,2,3 - ANSWER- b. 4,1,5,3,2
Which statement about Plasmodium is not correct
a. it is transmitted by a mosquito
b. it is endemic to over 100 countries
c. it is an obligate intracellular parasite
d. it causes Q fever - ANSWER- d. it causes Q fever
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