Bio 2010 - Microbiology » Summer 2022 » Chapter 3 Quiz

Need help with your exam preparation?

Existing Quiz Clients Login here
Question #1
Which of the following is NOT found in bacteria?
A.   plasma membrane
B.   ribosome
C.   membrane bound nucleus
D.   cell wall
Question #2
Plasmids are important to the genetics of many bacteria. This is because:
A.   they can render bacteria drug-resistant
B.   they may carry genes that give their host a selective advantage
C.   all of these
D.   they are inherited from one generation to the next
Question #3
Which of the following is not true about capsules and slime layers?
A.   they can prevent desiccation of bacteria cells
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 help bacteria resist phagocytosis by macrophages
Question #4
Fimbriae:
A.   are pathways for the secretion of exoenzymes
B.   cause bacteria move through fluids
C.   attach bacteria to various surfaces
D.   sense changes in nutrient concentration
Question #5
A bacillus bacterium with a single flagellum at each end is described as:
A.   amphitrichous
B.   peritrichous
C.   monotrichous
D.   lophotrichous
Question #6
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 #7
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 contains mitochondria
B.   it is gram positive
C.   it is part of a multicellular microorganisms
D.   it contains some peptidoglycan
E.   it is a eukaryote
Question #8
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.   contain a cell wall composed of cellulose
D.   actively block water molecules from entering the cell
Question #9
The use of the antibiotics that inhibit or inactivate cellular ribosomes will result directly in the loss of which of the following functions:
A.   protein synthesis
B.   phagocytosis
C.   cell division
D.   DNA replication
E.   ATP production

Need help with your exam preparation?

Existing Quiz Clients Login here