What color smoke coming from a coal-fired power plant would indicate wasted fuel?
A- red
B- clear
C- black
D- white
E- green
C- Black
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Biologists around the world spend a great deal of time studying the cytoskeleton of cells
Some of the tools they use in their research include chemicals that interfere with the structure of the cytoskeletal elements or with the activities of the motor proteins that associate with the cytoskeleton to facilitate movement. For example, a family of compounds called cytochalasins disrupts the normal assembly and disassembly of microfilaments. Another compound called colchicine binds to tubulin and prevents the assembly of microtubules. The function of dynein is prevented by a compound known as EHNA (erythro-9-[3-2- (hydroxynonyl)] adenine), and blebbistatin inhibits the activity of myosin. Use this information to answer the following questions. Based on this information, where would you predict blebbistatin to have the greatest effect? A. sperm cell motility B. leading edge formation of a migrating fibroblast C. the contraction at the trailing edge of a fibroblast D. Blebbistatin would likely have no effect on any of these examples of cell movement.
What type of thinking is required?
What will be an ideal response?
All trypanosomes are ________
a. alveolates b. mixotrophs c. ciliates d. parasitic
A sphere formed by organic molecules surrounded by water molecules is called a
A. coacervate. B. microsphere. C. proteinoid. D. protocell.