Which of the following cytoskeletal proteins would be expected to be involved in binary fission of a bacterium into two bacteria?
A) FtsZ
B) MreB
C) plectin
D) crescentin
E) tubulin
Answer: A
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Oxygen and carbon dioxide are exchanged with blood directly across the alveoli wall
Indicate whether the statement is true or false
The phenomenon that takes place at a concentration of free actin at the midpoint between the critical concentrations of the barbed and pointed ends of an actin filament is called
a. assembly. b. dynamic instability. c. treadmilling. d. disassembly. e. walking.
CO2 is a greenhouse gas because it:
A) increases the heat capacity of the stratosphere. B) causes the destruction of ozone in the near-surface atmosphere. C) traps short-wave energy near Earth's lower atmosphere. D) traps long-wave heat energy near Earth's lower atmosphere. E) increases the reflection of short-wave energy from the sun.
Which of the following fungal infections can be contracted through thorn pricks or wood splinters?
A. Sporothrix schenckii B. Cladophialophora C. Malassezia furfur D. Gyromitra esculenta E. Aspergillus