Why are microbial doubling times in nature typically longer than those obtained in the laboratory?

What will be an ideal response?


Answer: The general theme should be on how lab conditions are designed to optimally grow a microorganism (e.g., pH, substrate(s), temperature, vitamins) and minimize pressure. In the environment this microbe often is in conditions that are less than ideal, where they likely will encounter competition for growth substrates and other essential chemicals.

Biology & Microbiology

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Which of the following groups is responsible for toxic red tides?

A. Foraminifera B. Diatoms C. Dinoflagellates D. Trypanosomes

Biology & Microbiology

Which yeast identification system uses chromogenic substrates to assess specific enzyme activity usually detected within 4 hours?

a. Vitek b. MicroScan c. API-20C AUX d. Uni-Yeast-Tek

Biology & Microbiology

During gamete formation at the end of telophase I, the ploidy of the daughter cells is ________, and each chromosome consists of ________ chromatid(s)

Fill in the blank(s) with correct word

Biology & Microbiology

A patient undergoes a radical hemispherectomy of the right cerebral hemisphere in order to treat intractable epileptic seizure activity. Which of the following is a likely prognosis for the patient?

A. Partial Recovery of Most Symptoms B. Permanent Hemianesthesia C. Permanent Hemiplegia D. Permanent Ipsilateral Blindness E. Permanent Loss of Language Comprehension

Biology & Microbiology