Talia is a busy store clerk on Black Friday. She ate breakfast at 7 am but was not able to take a lunch break because the store was too busy. Its now 3 pm and she's beginning to feel a bit odd. Her non-nervous tissues are probably utilizing fatty acids and ketones as energy sources.
Answer the following statement true (T) or false (F)
True
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You are isolating molecules from different parts of a cell in the lab. You find that you've mixed up your tubes. In one tube, you've identified RNA. Therefore this tube must be from the nucleus, it could not be from the cytosol.
Answer the following statement true (T) or false (F)
A nerve cell membrane becomes depolarized as a result of
A. Na+ ion channels being opened and Na+ ions diffusing into the cell. B. the relative ease with which K+ diffuses into the nerve cell. C. Ca+2 leaving the nerve cell. D. Na+ being prevented from passing through the membrane.
List four hormones that affect fluid balance in the body
What will be an ideal response?
Human sperm
A. have twenty-three chromosomes. B. secrete testosterone. C. are diploid. D. All apply.