Cystic fibrosis is a common genetic disease, affecting about one of every 3,200 Caucasian births in the United States. This disease is recognizable in the ancient Northern European folk saying, "Woe to that child which when kissed on the forehead tastes salty. He is bewitched and soon must die." Search two Internet sites for information on "cystic fibrosis and osmosis" or "cystic fibrosis and
membrane transport." List the two sites below and briefly summarize what you learn from them regarding the connections between this disease and malfunctioning plasma membranes.
What will be an ideal response?
http://www.msu.edu/~luckie/cfarticle.html
http://www.colorado.edu/Outreach/BSI/pdfs/osmosis.pdf
The CFTR protein is involved in forming a channel for chloride transport. When this
protein is made improperly due to a genetic mutation, chloride is not transported properly
resulting in the signs and symptoms of cystic fibrosis.
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What is a chromatid, and how many are present during normal mitosis in a human cell?
A) A chromatid is a copy of a duplicated chromosome, and 23 are present. B) A chromatid is a copy of a duplicated chromosome, and 46 are present. C) A chromatid is a copy of a duplicated chromosome, and 92 are present. D) A chromatid is where spindle fibers attach, and 46 are present. E) A chromatid is where spindle fibers attach, and 92 are present.
All body cells have motile cilia with a "9+2" structure.
Answer the following statement true (T) or false (F)
Why does the administration of epinephrine ease the respiratory difficulties of a person with bronchitis?
What will be an ideal response?
List these events in the correct order for CSF flow in the CNS
a: CSF flows into the arachnoid villi b: CSF enters the blood c: CSF flows through the cerebral aqueduct to the 4th ventricle d: CSF flows into the subarachnoid space e: CSF is produced by the choroid plexus A. a, b, c, e, d B. e, a, b, c, d C. c, d, a, e, b D. e, c, d, a, b E. e, d, a, b, c