Name ______________________________ Period ______ The Chemical Basis for Life Use the TextBook, PowerPoints and other resources to fill in the information in this packet. 1.1 - Matter & Organic Compounds What is matter? What is a chemical substance? What is an element? Examples: Draw & label the 3 main parts of an atom & fill in the table: Subatomic Particle Charge Location Mass Proton Neutron Electron Fill in the Venn diagram with a p, an e & an n in the proper spots: charge mass 1 What is an isotope? How can they be used in science? How do you read a periodic table? Identify the information in the block to the right. 6 C Carbon 12.011 Pure elements might be fun…but most do not exist alone… What is a chemical compound? How can we show the composition of a compound? Use the water molecule as an example: Molecular formula: Structural formula: Molecular model (you will need to build this and then draw in color below what you built; red is hydrogen, white is oxygen): How are atoms joined together to make chemical compounds? 2 The Significance of Carbon Why is CARBON such an important element to living things on Earth? Fill in the chart, showing four types of organic compounds, the elements that make them & some examples: Type of Compound Carbohydrates Lipids Proteins Nucleic Acids Elements Examples Monomers & Polymers Make 2 sketches demonstrating the difference between a monomer & a polymer: Monomer Polymer Explain how monomers are related to polymers. Define the following terms: Dehydration synthesis Hydrolysis 3 Complete the Worksheet on dehydration synthesis & hydrolysis Carbohydrates General Characteristics Monomers: ___________________________________________________________________ Ratio of elements: _____________________________ What is an isomer? _____________________________________________________________ Build a glucose molecular model; draw in color a replica of your glucose model below and then change it into an isomer of glucose; draw in color a replica of this isomer below and label the isomer in the space provided: Label: Glucose________ Label: _____________________ Fill in the chart below: Monosaccharides Formula Where found Disaccharides Formula Where found Polysaccharides Where found Function 4 Watch the KQED Quest video entitled “From Sugar to Energy” & answer the questions below: We have been producing ethanol from corn kernels for years now. Describe what is being investigated in the video and the benefits and possible problems of that process. At the end of the video, one scientist says that we need more of a “silver shotgun” than a “silver bullet”. What does he mean by that statement? Lipids Glycerol Fatty Acids General Characteristics: Monomers: Hydrophobic means _________________________________________ Circle the answer: Are lipids polar or non-polar? Are lipids soluble in water? Functions: 5 Polar Non-Polar Yes No Fill in the chart below: Type of Lipid Characteristics Where found Triglycerides Saturated Unsaturated Phospholipids Steroids Proteins General Characteristics Functions: Monomers - label the parts of the model below: Name the parts of the general chemical structure of an amino acid. What kind of bond holds amino acids together? _______________________________________ 6 Protein Structures: Primary structure - ______________________________________________________________ Secondary structure - ____________________________________________________________ Tertiary structure - ______________________________________________________________ Quaternary structure - ___________________________________________________________ 7 Denaturation Definition: the change in _________________________________________________________ without ______________________________________________________________________; is ___________________________________________________________________________; changes or halts ________________________________________________________________. Is caused by ___________________________________________________________________ ______________________________________________________________________________ Nucleic Acids General Characteristics Functions: Monomers Nucleotides – made of what three parts: Draw a nucleotide below: Draw a line to match the monomer on the left to the organic compound macromolecule on the right. Fatty acids and glycerol Monosaccharide Nucleotide Amino Acid Protein Lipid Nucleic Acid Carbohydrate Draw a line to match the polymer on the left to the organic compound macromolecule on the right DNA Enzyme Triglyceride Polysaccharide Protein Lipid Nucleic Acid Carbohydrate 8 Fill in the missing information in the table below: Organic Compounds Carbohydrates Lipids Component Elements Monomer Examples Function Special Information (EX: Foods found in) 9 Proteins Nucleic Acids