09/22/15 Discussion Questions Please answer the following using Chapter 6 1. What are the most common elements found in living things? 2. What do you think are the major biomolecules found in living things that are made from those elements? 09/22/15 Discussion Question 1. Carbon, Hydrogen Oxygen, Nitrogen, Phosphorous, Calcium 2. Carbohydrates, Proteins, Lipids and Nucelic Acids Reminders Biochemistry Root words given out Thursday- Quiz Mon, 928-15 Biochemistry Review packet 1 given out Thursday test date Tuesday, 9-29-15 Review packets: Atoms and Nature of Matter given out today. ALL are DUE TEST DAY Read chapter 6 Refer to your Science Rules and Procedures Class brochure for retest policy and other impt. information Tomorrow I will be off campus Next Science Fair due date ~ 10-9-15 and will be the final draft of your background research report. QUIZ Clear your desks of everything Do NOT write on the quiz please Use CAPITAL letters please Keep your answers covered If you need to make up a quiz due to an absence… let me know Flip it over when you are finished and hang on to it EcoRegion Project Presentations Part of your grade will be based on your presentation and your attention during your classmates’ presentations. Hand me your rubric when you come up to present. Ecology Peer Evaluations On the top left of your paper please PRINT all group members names (first & last) On the top right of your paper please PRINT your name Divide your paper into three sections (one section for each of your partners and one section for your self evaluation). Write your partner's names above one of the sections and your name above the last section) Answer these questions using COMPLETE SENTENCES about each partner in their section of your paper and about yourself in your section. 1. Did your partner complete their assigned section of your presentation? 2. Did your partner complete their assigned section on time? 3. Did your partner use their class time wisely? 4. Do you think your partner adequately explained their section? Why or why not? 5. Did your partner include video clips and diagrams or any additional material for their section? 6. What grade do you think your partner deserves AND WHY? **DO NOT let anyone see your evaluation. Bring your paper to me. Evolution = Change over Time Lizard Activity Relay race 1st person on the team comes up and draws the lizard as fast as they can. They flip the original lizard over and leave theirs face up. 2nd person comes up once first person sits down and draws their lizard based on the first person’s drawing . 2nd person flips first person’s lizard down and flips theirs up. 3rd person comes up once second person sits down and they draw their lizard based on the second person’s drawing as fast at they can. They flip the second person’s lizard over and they leave their lizard face up. Organic Chemistry ppt and foldable • Lipids slides 25-33 • Work on foldable EXIT TICKET 1. Please describe an organic compound 2. Please give an example of an organic compound found in the cell 3. Please describe the structure and function of carbohydrates. Oral Conclusion 1. 2. Please give an example of a limiting factor Describe one way humans are impacting the nitrogen cycle 3. Describe one way humans are impacting the carbon cycle 4. How are microorganisms such as bacteria beneficial to an ecosystem? Organism? 5. Give an example of a producer. A consumer> 6. Describe biological magnification. 7. Give an example of an abiotic factor. A biotic factor. 8. Describe an invasive species and give an example. 9. Why does only 10% of the energy move from trophic level to trophic level? 10. How is primary succession different from secondary succession? Launch • Clean the floor around your desk, please throw away any garbage near your desk (yes PLEASE, even if it isn't yours) • • Words of Wisdom to launch you! “ If you think you can, or if you think you can't, you are right!” Henry Ford Spirals 9/22/15 Use Complete Sentences AP BIO Discussion Questions Using your phone or textbook please answer the following: 1. Please explain how enzymes are able to function as catalysts. 2. Please explain why ATP is important and how its structure allows it to function as the currency of energy. Reminders Root Quiz 1-50 FRIDAY. I will be off campus Wednesday Biomolecules Research due test day, Mon 928-15 Read chapters 2 AND 3 in your textbook and the Chemistry section in your Cliffsnotes Watch the Bozeman Biochemistry Podcasts Biochemistry exam is on Monday, 9-28-15 College Board Objectives and Agenda for the Day College Board: General Topics and Concepts, Biochemistry Today's AgendaYou Be the Doc Lab In this unit we will: Study carbon Learn the important biological functional groups Study organic molecules (carbs, proteins, lipids, nucleic acids) and their monomers Protein Notes Exam: Monday the 28th over biochemistry (study Cliff Notes AND Chapters 2-3 in your textbook; Visit Bozeman Biology Podcasts) PreLab “You Be the Doc” PPT Proteins??? Proteins Proteins Most structurally & functionally diverse group of biomolecules Functions: involved in almost everything enzymes structure (keratin, collagen) carriers & transport (membrane channels) receptors & binding (defense) contraction (actin & myosin) signaling (hormones) storage (bean seed proteins) Proteins Structure: monomer = amino acids 20 different amino acids polymer = polypeptide protein can be 1 or more polypeptide chains folded & bonded together large & complex molecules complex 3-D shape Amino acids Structure: central carbon amino group carboxyl group (acid) R group (side chain) variable group confers unique chemical properties of the amino acid H O H | || —N— —C— C—OH | H R Nonpolar amino acids nonpolar & hydrophobic Why are these nonpolar & hydrophobic? Polar amino acids polar or charged & hydrophilic Why are these polar & hydrophillic? Sulfur containing amino acids Disulfide bridges cysteines form cross links Building proteins Peptide bonds: dehydration synthesis linking NH2 of 1 amino acid to COOH of another C–N bond peptide bond Building proteins Polypeptide chains N-terminal = NH2 end C-terminal = COOH end repeated sequence (N-C-C) is the polypeptide backbone grow in one direction Protein structure & function function depends on structure 3-D structure twisted, folded, coiled into unique shape pepsin hemoglobin collagen Protein structure & function function depends on structure all starts with the order of amino acids what determines that order of amino acids? lysozyme: enzyme in tears & mucus that kills bacteria the 10 glycolytic enzymes used to breakdown glucose to make ATP Primary (1°) structure Order of amino acids in chain amino acid sequence determined by DNA slight change in amino acid sequence can affect protein’s structure & it’s function even just one amino acid change can make all the difference! Primary (1°) structure: Sickle cell anemia Secondary (2°) structure “Local folding” folding along short sections of polypeptide interaction between adjacent amino acids H bonds on backbone -helix -pleated sheet Tertiary (3°) structure “Global (whole molecule) folding” determined by interactions between R groups anchored by disulfide bridges stabilized by hydrogen and ionic ‘bonds’ hydrophobic interactions effect of water in cell 2° 3° Quaternary (4°) structure Joins together more than 1 polypeptide chain only then is it a functional protein Chaperonin proteins Guide protein folding provide shelter for folding polypeptides keep the new protein segregated from cytoplasmic influences Protein models Protein structure visualized by X-ray crystallography extrapolating from amino acid sequence computer modelling lysozyme Protein structure (review) 3° R groups hydrophobic interactions, disulfide bridges, ionic bonds 4° multiple polypeptides hydrophobic interactions, ionic bonds 1° aa sequence peptide bonds; determined by DNA 2° backbone H bonds Think eggs… Once you cook ‘em, there is no going back! Denature a protein Disrupt 3° structure pH temperature salt unravel or denature protein disrupts H bonds, ionic bonds & disulfide bridges Some proteins can return to their functional shape after denaturation, many cannot! Love them Proteins! 9/23/14 1. Name two functions of carbohydrates. 2. Predict what monomer you would form if you broke a carbohydrate down by hydrolysis. 3. Explain what would result if a lipid were hyrolyzed inside of an intestinal cell. 4. Why is cholesterol important? **check the floor around your area and throw away any trash **please put textbooks back on the bookshelf planet 1. Name two functions of carbohydrates. 2. Predict what monomer you would form if you broke a carbohydrate down by hydrolysis. 3. Explain what would result if a lipid were hyrolyzed inside of an intestinal cell. 4. Why is cholesterol important? **check the floor around your area and throw away any trash **please put textbooks back on the bookshelf planet 1. Name two functions of carbohydrates. 2. Predict what monomer you would form if you broke a carbohydrate down by hydrolysis. **check the floor around your area and throw away any trash **please put textbooks back on the bookshelf planet 1. Predict what monomer would be produced if the protein collagen is broken down. 2. Are lipids technically made of monomers? Why or why not? **check the floor around your area and throw away any trash **please put textbooks back on the bookshelf planet 1. Predict what monomer would be produced if the protein collagen is broken down. 2. Are lipids technically made of monomers? Why or why not? **check the floor around your area and throw away any trash **please put textbooks back on the bookshelf planet 1. Please name two biologically important polymers. 2. Please explain how monomers are joined together to form polymers. 3. How are hydrolysis and dehydration synthesis related? **check the floor around your area and throw away any trash **please put textbooks back on the bookshelf planet earth water EXIT TICKET 1. Give an example of a medicine that can behave differently in the cell/body in its isomer form. 2. Give an example of imbibition from the water lab. 3. Name and draw one acidic functional group. **use complete sentences to answer these questions and hand it to me as you exit the classroom **check the floor around your area and throw away any trash planet earth water EXIT TICKET 1. Please explain how hydrogen bonding enables water to move by capillary action. 2. Please explain how hydrogen bonding allows water to have a high specific heat capacity. 3. Please explain why we say water is a “heat sink” 4. Please describe one property of carbon that allows it to be so versatile. **use complete sentences to answer these questions and hand it to me as you exit the classroom **check the floor around your area and throw away any trash planet earth water EXIT TICKET 1. Please give an example of an ionic compound. 2. What are two unique properties of water that are a result of hydrogen bonding? **use complete sentences to answer these questions and hand it to me as you exit the classroom **check the floor around your area and throw away any trash planet earth water EXIT TICKET 1. Compare and Contrast taxis and kinesis. 2. Please compare and contrast an ionic and covalent bond 3. Please describe as many of the chemical properties of water as you can. Launch • Clean the floor around your desk, please throw away any garbage near your desk (yes PLEASE, even if it isn't yours) • • Words of Wisdom to launch you! “ If you think you can, or if you think you can't, you are right!” Henry Ford What a Beautiful World http://www.youtube.com/watch?v=I_ZvZQT8 1OY ~2 min