For the following medical conditions, describe the likely cellular organelle or structure that has been
affected in such a way as to cause the condition (note: There may be more than one organelle or
structure involved):
A. The sperm of a man cannot swim, thus rendering him infertile.
B. A child experiences kidney failure due to Fabry's disease where the cells lining the inside of the
kidney tubule accumulate abnormally large amounts of glycolipids that are usually degraded by
enzymes.
C. A person dies within minutes after ingesting cyanide because ATP is no longer being
synthesizedWhat will be an ideal response?
Concepts to Consider: A. The problem may be due to nonfunctioning mitochondria, which power
the beating of the flagella, or the problem may be dysfunctional microtubules; B. Peroxisomes, which
contain enzymes that break down lipids and fats, may be nonfunctioning or may not be produced by
the Golgi apparatus. On the other hand, the enzyme itself may not be produced due to a mutation in the
DNA or some post-transcriptional problem; C. Cyanide prevents the normal functioning of
mitochondria.
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One of the following contains the highest number of pathogens
A. Chemoheterotroph B. Photoautotroph C. Chemoautotroph D. Photoheterotroph
If you were on a desert island with no fresh water to drink, the level of which of the following would rise in your bloodstream in an effort to conserve water?
a. erythropoietin b. oxytocin c. insulin d. antidiuretic hormone e. glucose
If an owl is moved from a mature evergreen forest to a mature hedgerow in a suburban neighborhood, the owl's ________ has been changed
A) biosphere B) habitat C) range D) environmental resistance E) niche
An experimental condition applied to research subjects is called a
a) treatment b) control c) randomization d) placebo e) variable