Which of the following is mismatched?
A) ergot — gangrene
B) Salmonella endotoxin — lyses red blood cells
C) Vibrio enterotoxin — secretion of Cl-, K+, and H2O
D) aflatoxin — liver cancer
E) shiga toxin — tissue destruction
B
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Muscular dystrophy is caused by a mutation in dystrophin, and intracellular protein that binds to the cytoskeleton. Dystrophin also binds to ________, which is found in the plasma membrane of the cell and binds the extracellular matrix.
A. an actin filament B. a tight junction C. an integrin D. a cadherin E. a gap junction
Which amino acid is least soluble in water?
A. Alanine B. Glutamine C. Glycine D. Isoleucine Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about solubility in water? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What mechanism makes it difficult to classify bacteria into distinct species groups?
A. vertical evolution. B. horizontal gene transfer. C. sexual reproduction. D. asexual reproduction. E. low mutation rates.
In a capsule stain, capsules can be seen as ___________ surrounding the cells.
A. Purple cells walls B. Pink cell walls C. Clear halos D. A dark background