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 of the following correctly describes photv j+bb57 pw1jxoi2 xvnp);cmpmvw3z-vvd mw me 48o+++ synthesis or respiration?
A. Reaction is Photosynthesis, Products is Carbon dioxide, water, Anabolic or Catabolic is Catabolic, Endothermic or Exothermic is Exothermic
B. Reaction is Respiration, Products is Oxygen, glucose, Anabolic or Catabolic is Catabolic, Endothermic or Exothermic is Exothermic
C. Reaction is Photosynthesis, Products is Oxygen, glucose, Anabolic or Catabolic is Anabolic, Endothermic or Exothermic is Endothermic
D. Reaction is Respiration, Products is Carbon dioxide, water, Anabolic or Catabolic is Anabolic, Endothermic or Exothermic is Endothermic
参考答案: C
本题详细解析:
Photosynthesis is the production of carbon compounds such as glucose using light:s.mxxo ) yuu)y* gp,d energy. Oxygen is produced as a waste product which then diffuses out of the cell. Plants use smaller molecules such as carbon dioxide and water to build larger molecules like glucose. Hence, photosynyx:o.s*d)my pxuu ,)g thesis is an anabolic reaction. An anabolic reaction requires energy to build larger molecules. Photosynthesis takes in energy so is known as an endothermic reaction.
Cell respiration (Choices B and D) is the production of ATP, carbon dioxide and water using glucose and oxygen. Glucose is broken down to form smaller molecules so it is categorized as a catabolic reaction. A catabolic reaction releases energy when larger molecules are broken down to form smaller molecules. Reactions that release energy are known as exothermic reactions.
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