Study sets, textbooks, questions
Upgrade to remove ads
Micro Test 3 (ppts and review hw)
Terms in this set (182)
A population of metabolically related microorganisms is called a(n)
A soil clump has an oxic (oxygen containing) zone containing aerobic and facultatively aerobic organotrophs, and an anoxic zone containing fermentative bacteria, sulfate reducers, and denitrifyers. This soil clump has at least __________ different habitats, __________ different communities and __________ different guilds.
2, 2, 5
Which of the following represents increasing microbial diversity?
Compared with pure cultures grown in the lab, microbes in nature usually experience a wider range of environmental conditions, more variation in conditions over time, and more contact with other organisms. Therefore, the same organism in nature will __________.
typically grow slower than in a pure culture
Ecological theory states that for every organism there is at LEAST one ________, and the microenvironment where the organism is MOST successful is called the ________.
Steps in formation of a biofilm
All of the following are true of biofilms EXCEPT that __________.
biofilms are composed of only one species at a time
What is an example of a biofilm?
Cells within a biofilm excrete an adhesive matrix primarily composed of ________ but can also contain nucleic acids as well as proteins.
Bacteria will become part of a biofilm because __________.
It allows them to remain in a favorable niche.
Which of the following processes does denitrification contribute to?
acid rain, ozone depletion, & global warming
Nitrogen fixation results in the.....
addition of biologically available N to an ecosystem
The metabolic process of ammonification ________ ammonia.
Which of the following prevents supercoiling of bacterial DNA?
Some antibiotics inhibit protein synthesis by disruption of translation through interactions with the
Sets with similar terms
Micro Chapter 16
Sets found in the same folder
Microbiology Note 6 Questions
Microbiology exam 2
MICRO LAB 3051 final
Other sets by this creator
Why does wrapping a bottled beverage in a wet cloth at a picnic often produce a cooler bottle than placing the bottle in a bucket of cold water?
Which is higher in energy: the 2s or 2p orbital in hydrogen? Is this also true for helium? Explain.
Trucks often have signs on the back that say, “If you can’t see my mirrors, I can’t see you.” Explain the physics.
For each of the following pairs of atoms, state which you expect to have the higher electron affinity: (a) Rb or Sr; (b) I or Rn; (c) Ba or Te; (d) Bi or Cl.
Other Quizlet sets
LD Test (Chapters 5-6)
RE section 1
The best way to describe a fatty acid that has one point of unsaturation is:
In enzyme-based tests, why is a reagent blank usually used in addition to the regular blank?
what is another name for an alkaline wave?
** Which enzymes (A,B, and C) participate in the production of high fructose corn syrup (HFCS)?