Which term describes the chemical signaling that allows bacteria in biofilms to communicate
a. regulated cytokinesis
b. quorum sensing
c. sensitive chemotaxis
d. molecular cascade
Answer: b. quorum sensing
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Actinoplanetes that dwell in the soil play an important role in plant and animal decomposition.
Answer the following statement true (T) or false (F)
In a surgery of a few hours, the skeletal muscles are normally immobilized. Using the knowledge of this chapter, which of the following conditions would most likely result normally if countermeasures were not taken?
A) excessive redness of the skin B) fluid buildup in the tissues C) excessive sweating D) rapid breathing
Sickle-cell anemia is caused when one nucleotide is changed to another nucleotide in the hemoglobin gene. How does this one small change cause the life-threatening disease of sickle-cell anemia?
What will be an ideal response?
If proton pumps on companion cells were not functional, would the companion cells still be able to assist in phloem loading?
A. No, the proton pumps are absolutely required. B. Yes, through symplastic phloem loading. C. Yes, through transmembrane transport. D. Yes, through partly apoplastic phloem loading.