PreLim1_Review - REVIEW GUIDE FOR BIOG 110 PRELIM#1 You...

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REVIEW GUIDE FOR BIOG 110 PRELIM #1 You have a number of resources to help you prepare for Prelim #1. Each of the following is posted on the BioG110 Blackboard site. Potential Prelim essay questions written by Professor Wayne (recall 1 of the posted questions will appear on the Prelim) The pre & post lecture questions written by Professor Wayne – Recall and large portion of the exam will be composed of these questions Lecture Note summaries and this review guide written by Dr Balko At this point, you should use the ppts and lecture notes as reference sources (much as you would a text book) to help you find the answers for all the questions listed in the above files. The remainder of this review guide will serve as an outline of key terms and concepts you should know. The “transcribed” lecture note summaries (mentioned above) will be a good source for key concept summaries. 1. Living organisms are characterized by what physico-chemical and biological features? - Movement : Moves by internal forces - Growth : Takes up small molecules and synthesizes large organic molecules it uses to grow - Consumption: Transforms one kind of energy, often by “burning” organic molecules using oxygen - Synthesis : Generates electrical energy - Respond to stimuli: Responds appropriately to the environment - Reproduction : Reproduces with near perfect fidelity 2. What are Amino Acids found in under what prebiotic conditions can they be formed? Under prebiotic conditions amino acids can polymerize (process by which these building blocks are joined together into a chain) into proteins without the aid of enzymes or a template. They do so more readily on the surface of clay. Clay is proposed to be the catalyst to protein synthesis. Clay provides the positive and negative charges conducive to joining Amino Acids. 3. Why are proteins so important? What are their different functions? Proteins are important because they are nature’s premier catalysts. When proteins act as catalysts they are called enzymes. They help to speed up the process by reducing the need for high energy inputs. Proteins have four different functions. Enzymes, Transport, Cell Signaling, and maintain cell structure.
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4. Why are Nucleic Acids so valuable as the “keepers” of the genetic code? Why them and not one of the other groups of organic compounds. A nucleic acid carries genetic information or form structures within cells. The most common nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). RNA has the ability to replicate itself due to its endogenous polymerase activity. It also has other catalytic activities. DNA has greater stability. Proteins are the best templates. RNA carries the transcribed message from the DNA to the ribosome where that genetic
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PreLim1_Review - REVIEW GUIDE FOR BIOG 110 PRELIM#1 You...

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