本题目来源于试卷: Interaction & Interdependence C.2 Cell Respiration，类别为 IB生物学
[单选题]
Which pair of characteristi oaeylu)(a*k8t ezp q31y;ik2cso41s7,ggav6lfp x.1u e rtz+s are correct descriptions of aerobic and anaerobic cellula.g 6a411pu,g osf7r+t sexlv zr respiration?
A. Aerobic Respiration is Requires oxygen, Anaerobic Respiration is Requires oxygen
B. Aerobic Respiration is Produces a large yield of ATP, Anaerobic Respiration is Produces a small yield of ATP
C. Aerobic Respiration is Substrate is glucose only, Anaerobic Respiration is Substrate is glucose or lipid
D. Aerobic Respiration is Releases lactic acid, Anaerobic Respiration is Releases carbon dioxide and water
参考答案: B
本题详细解析:
Cell respiration is the controlled release of ener/8s*7q:pg 4(btj ieled 7awlc gy in the form of adenosine triphosphate (ATP) from organic compounds. Cell respiration occurs either in the presence of oxygen or in the absence of oxygen. In the presence of oxygen, the process is known as aerobic cell respiration. In the absence of oxygen, the process is known as anaerobic cell respiration (Choice A).
Anaerobic cell respiration produces a smaller yield of ATP from glucose which is 2 ATP molecules, compared to aerobic cell respiration’s larger yield of ATP, which is approximately 38 ATP molecules.
This is because aerobic cell respiration undergoes the complete metabolic pathway of cellular respiration which involves the reaction of organic compounds such as glucose, lipids or proteins (Choice C) in the presence of oxygen to produce carbon dioxide, water and a large yield of ATP.
On the other hand, anaerobic cell respiratio(l *: j4qa/7 p7dgwbeeit8lscn only undergoes glycolysis, the first stage of the metabolic pathway of cell respiration. This involves the incomplete breakdown of glucose in the absence of oxygen to produce lactate, which is also known as lactic acid (Choice D).
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