You set up three separate test tubes containing equal amounts of glucose along with appropriate media setup and conditions to support growth as follows: aerobic respiration, anaerobic respiration, and fermentation. You inoculate each with E. coli, which is capable of growth using any of these approaches under the appropriate conditions. You proceed to measure the optical density of each culture using a spectrophotometer by way of measuring their growth. Which culture should reach the highest optical density, i.e., the greatest turbidity, representing the most cells produced? Copyright 2025 by Dr. Jonathan A. Miller. All rights reserved. Online sharing or distribution is prohibited. For exam use only in BIOL& 260: Microbiology at Edmonds College. Outside help is not allowed.

Provider orders Vitamin D3, 75mcg taken by mouth every day. Available Vitamin D3 1000 IU (25 mcg) caplets. How many caplets with the nurse give?

Provider orders Lovastatin 40 mg, by mouth once a day. Available: Lovastatin 20 mg tablets. How many tablets will the nurse give?

Provider orders Magnesium Hydroxide, 30 ml by mouth as needed 1 time daily. Available Magnesium Hydroxide, 1200 mg /15 ml. How many ml will the nurse give?

Although bacteria are microscopic single-celled organisms, some types can

Methylotrophs are capable of obtaining their carbon and energy needs from single carbon compounds such as methanol. You decide to set up an enrichment culture to look for methylotrophic bacteria capable of utilizing methanol in soil samples around campus. In order for your enrichment culture to work, it would be appropriate for you to provide all of the following EXCEPT ______.

Regarding endospores, which of the following statements is true?

Dental plaque, the slippery coating on rocks in a stream, and the slimy film that forms in toilets and sinks that aren’t regularly cleaned are all examples of ______.

We are increasingly understanding how an individual human being can be considered a walking ecosystem harboring an enormous diversity of microbes! If you were to analyze all the microbes in and on your body, you would be able to find representatives of which of the following types of organisms? Please choose the most complete (inclusive) answer.

You have performed an enrichment culture and successfully isolated a new species of bacteria from soils that consumes polyaromatic hydrocarbons, or PAHs. You confirm via a flagella stain that these bacteria possess flagella. If these bacteria are also capable of chemotaxis, and you placed a pipette full of a solution of PAHs into a container of your bacteria, you would predict ______.