Bio 2010 - Microbiology » Spring 2021 » Chapter 3 Quiz

Need help with your exam preparation?

Existing Quiz Clients Login here
Question #1
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 part of a multicellular microorganisms
C.   it contains some peptidoglycan
D.   it is a eukaryote
E.   it is gram positive
Question #2
Fimbriae:
A.   sense changes in nutrient concentration
B.   are pathways for the secretion of exoenzymes
C.   attach bacteria to various surfaces
D.   cause bacteria move through fluids
Question #3
Plasmids are important to the genetics of many bacteria. This is because:
A.   they can render bacteria drug-resistant
B.   they are inherited from one generation to the next
C.   they may carry genes that give their host a selective advantage
D.   they are inherited from one generation to the next, they may carry genes that give their host a selective advantage, and they can render bacteria drug-resistant
Question #4
Which of the following is NOT found in bacteria?
A.   cell wall
B.   plasma membrane
C.   membrane bound nucleus
D.   ribosome
Question #5
Which of the following is not true about capsules and slime layers?
A.   they can prevent desiccation of bacteria cells
B.   they help bacteria resist phagocytosis by macrophages
C.   they are required for all bacteria to grow normally in culture
D.   they consist of secreted material lying outside of the bacterial cell wall
Question #6
Brushing teeth is important to biofilm prevention. What specific bacterial structure does brushing teeth address?
A.   capsules
B.   fimbriae
C.   endospores
D.   flagella
Question #7
What is the purpose of bacterial endospores?
A.   allow the bacterium to survive the absence of oxygen
B.   allow the bacterium to make hundreds of "seeds" to spread on the wind
C.   allow the bacterium to survive extended periods without nutrients
D.   help the bacterium to differentiate into faster growing stages of bacteria
Question #8
A bacillus bacterium with a single flagellum at each end is described as:
A.   amphitrichous
B.   peritrichous
C.   monotrichous
D.   lophotrichous
Question #9
The reason that bacterial cells are more resistant to osmotic shock than are eukaryotic cells is that they:
A.   actively block water molecules from entering the cell
B.   contain a cell wall composed of cellulose
C.   contain a cell wall composed of peptidoglycan
D.   are selectively permeable
Question #10
The use of the antibiotics that inhibit or inactivate cellular ribosomes will result directly in the loss of which of the following functions:
A.   ATP production
B.   phagocytosis
C.   DNA replication
D.   protein synthesis
E.   cell division

Need help with your exam preparation?

Existing Quiz Clients Login here