. Essay questions (30%) 1.Refer to the following graph of an action potential to answer the questions below. Identify the ions responsible for controlling each phase A-E of the action potential, and briefly explain their roles. (10pt)

II. Short Answer Questions ※ 注意:請於試卷內之「非選擇題作答區」依序作答 The figure (Figure 1 in Inoue et al., 2001) shows tissue culture responses across a matrix of auxin (NA(A) and cytokinin (kinetin) concentrations for (a) wild type and (b) a mutant. In wild type, increasing kinetin promotes shoot formation, whereas the mutant shows a strongly altered response to kinetin. [3pt] 18. Which receptor/signaling pathway is the mutant most likely defective in?

. Essay questions (30%)
1.Refer to the following graph of an action potential to answer the questions below.
Identify the ions responsible for controlling each phase A-E of the action potential, and briefly explain their roles. (10pt)

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