Bio 2010 - Microbiology » Summer 2023 » Chapter 3 Quiz

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Question #1
Which of the following is NOT found in bacteria?
A.   ribosome
B.   cell wall
C.   membrane bound nucleus
D.   plasma membrane
Question #2
Which of the following is not true about capsules and slime layers?
A.   they help bacteria resist phagocytosis by macrophages
B.   they consist of secreted material lying outside of the bacterial cell wall
C.   they are required for all bacteria to grow normally in culture
D.   they can prevent desiccation of bacteria cells
Question #3
Fimbriae:
A.   are pathways for the secretion of exoenzymes
B.   attach bacteria to various surfaces
C.   sense changes in nutrient concentration
D.   cause bacteria move through fluids
Question #4
What is the purpose of bacterial endospores?
A.   allow the bacterium to survive extended periods without nutrients
B.   allow the bacterium to survive the absence of oxygen
C.   help the bacterium to differentiate into faster growing stages of bacteria
D.   allow the bacterium to make hundreds of "seeds" to spread on the wind
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 a eukaryote
B.   it is part of a multicellular microorganisms
C.   it is gram positive
D.   it contains mitochondria
E.   it contains some peptidoglycan
Question #6
The reason that bacterial cells are more resistant to osmotic shock than are eukaryotic cells is that they:
A.   contain a cell wall composed of peptidoglycan
B.   are selectively permeable
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.   cell division
B.   DNA replication
C.   ATP production
D.   phagocytosis
E.   protein synthesis

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