教师如何解释ATP驱动不利过程的机制?
Clare G-C Franovic1, Nicholas R Williams1, Keenan Noyes1
1Department of Chemistry, Michigan State University, East Lansing, MI 48824.
CBE life sciences education
|October 31, 2023
概括
学生们在与腺三酸盐 (ATP) 和能量扎. 教师们经常错误地教导,打破ATP键释放能量,阻碍了对生物能量转移机制的理解.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 科学教育科学教育教育.
背景情况:
- 自20世纪70年代以来,学生对能源概念,特别是三酸腺 (ATP) 的困难一直存在.
- 一个常见的误解是,破坏ATP键释放能量,这与化学原理相反.
- 在ATP中的术语"高能键"有助于学生之间的这种误解.
研究的目的:
- 研究化学,生物学和生物化学教师如何概念化和教授ATP作为能源的作用.
- 确定与解释ATP在生物系统中的功能相关的普遍教学机制和挑战.
主要方法:
- 与化学,生物学和生物化学的教师进行了15次半结构面试.
- 分析了采访数据,以确定ATP的能量机制如何解释的共同主题.
主要成果:
- 讲师主要使用两种模型:能量释放 (ATP水解,键能) 和能量转移 (酸化,常见中间体).
- 许多教师在教导ATP和能量释放时报告了负面经历和不适.
- 很大一部分教练依赖"能量释放"模型,延续了误解.
结论:
- "高能键"术语和对能量释放的关注阻碍了学生对ATP作用的准确理解.
- 教学策略应解决教练的不适,并强调能量传递机制,以更好地理解分子过程.
- 修改教学方法可以提高学生对ATP如何驱动生物功能的理解.
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