本题目来源于试卷: SL Topic B1.1 Carbohydrates and lipids，类别为 IB生物学
[问答题]
c. Explain the shape o 5ptf7/o(so iu v+mxw,f the c j(c5t 6i4k 0wrt3zx.yjg gv/hurve for the use of glucose as a respiratory substrat4iv06zkh3gy(r /. xwj jtt5gce.
参考答案: • The concentration of glucose gradually decreases as glusoce is is used by respiration.
• The curve is steep at the start (rapid rate of reaction) because there is the highest
concentration of glucose at the start.
• As glucose is a monosaccharide it is quickly absorbed by the yeast to use in respiration.
• The slope reaches a plateau (the rate of production of carbon dioxide falls after 70
minutes, as the concentration of glucose decreases.
• At the Plateau there is no more carbon dioxide produced/respiration stops (after 90
minutes) as glucose has been used.
本题详细解析:
暂无
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