Exercise can trigger an asthma attack. This is especially true if someone goes for a long run on a cold morning. The two main causes of narrowing of the bronchiole passageways can be treated with drugs that act in different ways
What are the two causes of this narrowing, and how can drugs work to counteract these conditions?
Smooth muscle contraction of the bronchioles is one cause of the narrowing; it can be treated with drugs that cause muscle relaxation. Inflammation of the passageways can also cause narrowing of the bronchioles. Anti-inflammatory drugs can treat the inflammation.
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Translation requires _____
A) mRNA, tRNA, DNA, and rRNA B) mRNA, DNA, and rRNA C) mRNA, tRNA, and rRNA D) mRNA, tRNA, and DNA
If the body recognizes parts of itself as being foreign, this is termed
A. immunodeficiency disease. B. agammaglobulinemia. C. autoimmune disease. D. AIDS.
Why did the authors choose to look for the rubisco gene in the DNA samples taken from permafrost?
A. It is used in respiration by all plants. B. It is used in photosynthesis by all plants. C. Plant cells do not have a nucleus. D. Plant cells do not have mitochondria. E. It is only present in angiosperms (flowering plants).
In Arabidopsis plants, about 10% of its genome is devoted to processes tied to which molecule?
A. Gibberellins B. Phytochrome C. Ubiquitin D. Rubisco E. Auxin