HSCI 100 Lecture Notes - Lecture 2: Ribose, Deoxyribose, Cytosine
3 Feb 2017
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L e c t u r e 2 : c h e m i s t r y l i f e. Define an element and determine its atomic weight and atomic number. Differentiate between covalent and ionic bonds in terms of strength and the interaction of electrons. Explain how polarity relates to hydrogen bonds. Describe the unique characteristics of water that make it valuable to biological systems. Describe the structure of a polymer including its formation through dehydration synthesis and its breakdown through hydrolysis. Exemplify the structure and biological purpose of a carbohydrate, lipid, protein, and nucleic acid. Explain the purpose of enzymes and how they function. Describe atp as the energy currency of the cell. Matter: anything that has weight and takes up space. Elements: basic building blocks of matter that cannot be broken down by chemical means. 90% human body comprises 4 elements: carbon, nitrogen, oxygen, hydrogen.
