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BIO 2104 Exam Questions and Complete Solutions Graded A+
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BIO 2104 Exam Questions and Complete Solutions Graded A+
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BIO 2104 ExamQuestions and
Complete Solutions
Graded A+
Denning [Date] [Course title]
,A prokaryote that has thick peptidoglycan cell wall with small amounts of teichoic acid and lipoteichoic
acid is - Answer: Gram positive
When flagella are located at both poles of the microbe they are known as - Answer: amphitrichous
Lysozyme is most effective against - Answer: Gram positive organisms
All bacterial cells have - Answer: Ribosomes
Plasmids - Answer: Are often the site of pathogenic genes
Endospores can be destroyed by boiling them at 100 C - Answer: False
Gram negative bacteria have techoic and lipotechoic acid. - Answer: False
Gram positive organisms - Answer: Are more susceptible to antibiotics than gram negative organisms
The bacterial structure that is responsible for the cells morphology and protects the cell from changes in
osmotic pressure is the - Answer: Cell wall
Which of the following is not a function of a prokaryote cell membrane? - Answer: protection against
phagocytosis
capsomers bind together to form - Answer: capsids
Identify the proper order of phases in the life cycle of animal viruses: - Answer: adsorption, penetration,
uncoating, synthesis, assembly, and release
A temporal dsDNA bacteriophage - Answer: inserts its genome into the host chromosome to become a
prophage
, A naked virus exits a cell by ________; an enveloped virus exits a cell by ________ - Answer: lysis,
budding off
Enveloped animal viruses get their envelope from a host membrane. - Answer: True
Viruses that alter host genetic material may cause oncogenic effects. - Answer: True
Viral nucleic acids include which of the following - Answer: A)
Double stranded DNA
B)
Single stranded DNA
C)
Double stranded RNA
D)
Single stranded RNA
E)
All of the choices are correct - correct
New, nonenveloped virus release occurs by - Answer: Lysis
Lysogeny refers to - Answer: Viral genome inserting into bacterial host chromosome
The activation of a prophage is called - Answer: Induction
Penicillins and cephalosporins - Answer: Block peptidases that cross-link glycan molecules
The following are mechanisms of drug resistance except - Answer: horizontal transfer
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