Answer the following questions true (T) or false (F)
1. Serial dilution can be used in combination with pour plates as a method for isolating pure cultures.
2. The only effective way to store bacterial cultures for short periods of time is to arrest their metabolism by freezing.
3. Quorum sensing is involved in the development and propagation of a biofilm.
1. TRUE
2. FALSE
3. TRUE
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What is the best characterization of the minus end of a dynamic filament?
A. It is fast growing. B. It is slow growing. C. It loses subunits quickly. D. Answers b and c are correct.
Barnacles such as Balanus are most common in the ____ zone of the rocky intertidal
a. upper midlittoral b. middle midlittoral c. lower midlittoral d. subtidal e. splash
Which three organelles are involved in the glycolate pathway?
A) lysosome, chloroplast, rough endoplasmic reticulum B) mitochondrion, nucleus, lysosome C) peroxisome, smooth endoplasmic reticulum, chloroplast D) peroxisome, chloroplast, mitochondrion E) Golgi complex, peroxisome, lysosome
Four of the following are shared characteristics of parabasalids and diplomonads. Which is the exception?
A. Heterotrophic B. Flagella C. Oxygen-poor or anaerobic habitats D. Abundant mitochondria E. Live in animals