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GRE阅读题目解析:无氧糖酵解

2017-02-27 11:50:00来源:网络

  GRE阅读题目解析:无氧糖酵解GRE考试考什么?GRE阅读是重点。新东方在线GRE频道为大家带来GRE阅读题目解析:肾上腺素答案见下一页,希望对大家GRE备考有所帮助。更多精彩尽请关注新东方在线GRE频道!

  查看全部:GRE阅读答案解析(汇总)

  GRE阅读题目解析:无氧糖酵解

  P3

  Question 6 is based on the following passage.

  Anaerobic glycolysis is a process in which energy is produced, without oxygen, through the breakdown of muscle glycogen into lactic acid and adenosine tri- phosphate (ATP), the energy provider. The amount of energy that can be produced anaerobically is a function of the amount of glycogen present—in all vertebrates about 0.5 percent of their muscles‘ wet weight. Thus the anaerobic energy reserves of a verte-brate are proportional to the size of the animal. If, for example, some predators had attacked a 100-ton dinosaur, normally torpid, the dinosaur would have been able to generate almost instantaneously, via anaerobic glycolysis, the energy of 3,000 humans at maximum oxidative metabolic energy production.

  6. The passage‘s suggestion that the total anaerobic energy reserves of a vertebrate are proportional to the vertebrate‘s size is based on which of the following assumption?

  (A) larger vertebrates conserve more energy than smaller vertebrates

  (B) larger vertebrates use less oxygen per unit weight than smaller vertebrates

  (C) the ability of a vertebrate to consume food is a function of its size

  (D) the amount of muscle tissue in a vertebrate is directly related to its size

  (E) the size of a vertebrate is proportional to the quantity of energy it can utilize

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