Cardiac muscle cells need to generate significant amounts of ATP to allow for constant contractile activity. As a result, they primarily depend upon beta-oxidation of fatty acids, which has a higher energy yield than the catabolism of glucose. What would be the ATP yield for beta-oxidation of a hypothetical 10-carbon fatty acid?
A. 62 ATP
B. 32 ATP
C. 65 ATP
D. 50 ATP
E. 35 ATP
Answer: A
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Regarding megafaunal extinctions, it is assumed that the driving factor was
A. climate change. B. the Ice Age. C. Homo sapiens. D. a meteorite. E. rising sea levels.
Which statements about acid precipitation are accurate? Check all that apply.
_____ Acid rain is intermediate between point-source and diffuse pollution. _____ Mercury is a pollutant that often accompanies acid precipitation. _____ Acid precipitation is a severe problem in areas with soils having high buffering capacity. _____ Acid precipitation can affect aquatic ecosystems. _____ Acid precipitation can affect forests, weakening the trees and making them more susceptible to disease.
Which disease listed does NOT require quarantine?
A) smallpox B) HIV/AIDS C) plague D) cholera
Of the 64 triplet combinations in the genetic code, ____________________ code(s) for amino acids and
____________________ code(s) for the signal that ends protein synthesis. Fill in the blank(s) with the appropriate word(s).