Cystic fibrosis is a genetic disease that leads to the production of excessive, thick mucus in the respiratory tract, causing frequent and serious respiratory infections
The defect is due to the production of a faulty membrane protein for the transport of the chloride ion. The protein exists in membranes, but it doesn't function normally.
Based on this scenario, what is occurring at the molecular level in a person with cystic fibrosis?
A) A receptor protein is being adversely affected.
B) A carrier protein is being adversely affected.
C) Protein filaments in the cytoplasm are being adversely affected.
D) A recognition protein is being adversely affected.
E) A channel protein is being adversely affected.
E
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The first affected family member who seeks medical attention for a genetic disorder is called the ____________________
Fill in the blank(s) with correct word
While neural activity involves transmission of information through electrical events, endocrine activity involves ____
a. transport of hormones to trigger slow, persistent responses b. transport of hormones to trigger fast, transient responses c. release of hormones from exocrine glands for transport outside the body d. changes in neural activity for transport of hormones to target tissues e. transmission of information through chemical reactions
Recent studies have demonstrated evolution in populations over a span of time as short as ____
a. single years b. decades c. centuries d. thousands of years e. millions of years
The antifungal drug that can be used to treat serious systemic fungal infections is ________.
A. amphotericin B B. metronidazole C. sulfa drugs D. griseofulvin E. nystatin