Why are mycoses among the most difficult diseases to treat?
What will be an ideal response?
There are two main reasons it is so difficult to treat mycoses. First, fungi can evade the immune system. Fungi possess the biochemical ability to resist killing by T lymphocytes during cell-mediated immune responses, making them resistant to the body's defenses. Some fungi are also resistant to phagocytosis and phagocytic killing. Second, fungi are eukaryotic cells and are very similar to human cells, so most antifungal agents are also toxic to human cells.
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The process of beer lagering involves ________.
A. distillation B. aging C. carbonation D. None of the choices are correct.
What are 2 pieces of anatomical evidence that lead ichthyologists to consider that sturgeons are a fairly old group of fishes?
What will be an ideal response?
Cholera is a bacterial disease, in which fatal dehydration can occur due to loss of water into the intestines. Cystic fibrosis is a human genetic disease characterized by excess mucus buildup on the linings of the lungs, making breathing difficult. Cholera acts on intestine cells to force water transport out of the cells and the body. Cystic fibrosis has an abnormal CFTR transport protein that limits water transport out of the cells and the body. How does the bacteria that causes cholera, Vibrio cholera, trigger potentially life-threatening diarrhea?
A. Cholera toxin stimulates CFTR, leading to decreased transport of water into the intestines. B. Cholera toxin causes a DNA genetic mutation that modifies the function of CFTR proteins. C. Cholera toxin inhibits CFTR, leading to decreased transport of water into the intestines. D. Cholera toxin inhibits CFTR, leading to increased transport of water into the intestines. E. Cholera toxin stimulates CFTR, leading to increased transport of water into the intestines.
A eukaryotic chromosome consists of _____
a. DNA and lipids b. RNA and proteins c. DNA and proteins d. DNA and carbohydrates e. just DNA