Bio 2010 - Microbiology » Summer 2023 » Chapter 3 Quiz

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Question #1
Which of the following is NOT found in bacteria?
A.   cell wall
B.   ribosome
C.   plasma membrane
D.   membrane bound nucleus
Question #2
Which of the following is not true about capsules and slime layers?
A.   they consist of secreted material lying outside of the bacterial cell wall
B.   they help bacteria resist phagocytosis by macrophages
C.   they are required for all bacteria to grow normally in culture
D.   they can prevent desiccation of bacteria cells
Question #3
Fimbriae:
A.   sense changes in nutrient concentration
B.   cause bacteria move through fluids
C.   are pathways for the secretion of exoenzymes
D.   attach bacteria to various surfaces
Question #4
What is the purpose of bacterial endospores?
A.   allow the bacterium to make hundreds of "seeds" to spread on the wind
B.   help the bacterium to differentiate into faster growing stages of bacteria
C.   allow the bacterium to survive extended periods without nutrients
D.   allow the bacterium to survive the absence of oxygen
Question #5
While viewing the soil sample under the microscope you will notice a rod- shaped cell devoid of a nucleus. The only correct assumption that can be made of the cell thus far is that:
A.   it is part of a multicellular microorganisms
B.   it contains mitochondria
C.   it contains some peptidoglycan
D.   it is gram positive
E.   it is a eukaryote
Question #6
The reason that bacterial cells are more resistant to osmotic shock than are eukaryotic cells is that they:
A.   are selectively permeable
B.   contain a cell wall composed of peptidoglycan
C.   actively block water molecules from entering the cell
D.   contain a cell wall composed of cellulose
Question #7
The use of the antibiotics that inhibit or inactivate cellular ribosomes will result directly in the loss of which of the following functions:
A.   phagocytosis
B.   cell division
C.   protein synthesis
D.   ATP production
E.   DNA replication

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