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CUSA1031 The Chemistry and Chemical Analysis of Biomolecules 生物分子的化学与分析

Introduction:

Biomolecules are loosely defined as molecules found in biological system. In the biological system, carbohydrate, protein, lipid, nucleic acid and enzyme are key biomolecules. This course covers the chemical structures of these biomolecules and their roles in biological systems. Besides, we will talk about some interesting topics that you encounter very often in daily life. For example, how do artificial sweeteners differ from table sugar? Why do artificial sweeteners have low or even zero calorie contents? Can we unboil an egg? What causes aging? Is there any method to reverse the aging process? Finally, we will talk about the basic principles of chemical analysis for various biomolecules in foods. This course comprises of both lectures and experimental sessions.

生物分子一般泛指存在于生物体的分子。碳水化合物、蛋白质、脂类、核酸和濲都是生物体主要的生物分子。本课程将介绍这些重要的生物分子的化学结构与其在生物体中扮演的角色。除此以外,我们会介绍一些在日常生活经常遇到的有趣课题。举例代糖与一般食用糖的分别是甚么?为甚么代糖有较低甚至没有卡路里?煮熟后的鸡蛋能否变回生鸡蛋?为甚么人会变老?有没有方法可以返老还童?最后,本课程将介绍化学分析的基础知识,并讲解食物中的生物分子的化验方法。课程以讲课及实验形式进行。

 

Organising units:
  • Department of Chemistry, CUHK
  • Centre for Promoting Science Education, CUHK
Category:   Category II – Academy Credit-Bearing
Learning outcomes:   Upon completion of this course, students should be able to:
  1. Recognise that organisms are carbon-based, being composed of building blocks such as carbohydrates, proteins, fats and nucleic acids.
  2. Recognise that most of the biomolecules are chiral and the importance of chirality in Nature.
  3. Understand the chemistry of carbohydrates, fats, proteins, enzymes and nucleic acids, including their chemical structures, functions and problems arising from deficiency of these molecules in organisms.
  4. Understand the principle of chemical analysis.
  5. Acquire a hand-on experience in qualitative and quantitative analysis of carbohydrates and proteins in foods.
  6. Introduce some recent advances in scientific research on these biomolecules.
Learning Activities:
  1. Lectures
  2. Lab
Medium of Instruction:   Cantonese supplemented with English
Assessment:
  1. Short answer test or exam
  2. Lab reports
Recognition:   No. of Academy unit(s):  1.5
* Certificate or letter of completion will be awarded to students who attain at least 75% attendance and pass the assessment (if applicable)
 
Expected applicants:   Students who are promoting to or studying S4-S6.
Organising period:   Summer 2016; Summer 2017; Summer 2018