The primary structure of a protein ultimately determines its three-dimensional structure.
Answer the following statement true (T) or false (F)
True
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One of the main functions of the hypothalamus is to produce ____ hormones, which affect the ____ pituitary
a. releasing; posterior b. releasing; anterior c. activating; posterior d. amplification; anterior e. growth factor; anterior
If necessary, our muscles can rely upon an anaerobic (fermentative) pathway to metabolize glucose, but this can only last a short period of time. Why can't our cells survive very long under such anaerobic conditions?
A) Fermentation doesn't extract enough ATP from glucose to sustain our energy-craving cells. B) Anaerobic conditions create a "carbon dioxide debt" that must be repaid before cells die. C) The ethyl alcohol that builds up in muscles as a result of fermentation is a toxin. D) Lactic acid causes the cell to die when it's exposed to even lower concentrations.
Unique features of vertebrates include the presence of a(n) ________
A) endoskeleton B) notochord C) skull and a backbone D) pharyngeal slit
In seed plants the entire male gametophyte is transported to the female.
Answer the following statement true (T) or false (F)