Sept 27‚ 2010 Chapter 4 * With four valence electrons‚ carbon can form four covalent bonds with a variety of atoms * This tetra valence makes large‚ complex molecules possible * Fundamental groups: Alkanes and Alkenes * The electron configuration of carbon gives it covalent compatibility with many different elements * The valences of carbon and its most frequent partners (hydrogen‚ oxygen‚ and nitrogen) are the “building code” that governs the architecture of living
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structure of the inner part of the cell membrane (Goldspiel‚ 1997) and (Ledwitch et al.‚ 2013). It contains heptadecane (17-carbon) skeleton with a structural formula of C47 H51 NO14 and a molecular weight of 853.9 g/mol. The antitumor activity of the drug is mainly due to the side chain; a ring‚ oxetane ring and C2 benzoyl group (Priyadarshini and Keerthi‚ 2012).
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Biomedical research Propolis is the focus of a large number of research projects.[21] Some preliminary research findings (published in the biomedical literature)‚ together with their limitations‚ are described below. Readers are reminded that the following information represents preliminary research and does not constitute medical advice. Readers are directed to their local physician or healthcare provider for medical advice. As an antimicrobial[edit] Preliminary scientific studies show some
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take notes‚ do assignment) 02.01 Chemistry of Life Honors (read‚ notes‚ assignment) 02.02 Early Cells (read lesson‚ take notes‚ do assignment) 02.02 Early Cells Honors (read‚ notes‚ assignment) ----- This is the end of your Drop/Add Period ----- Your dedication to the class is very important to your success. If you are behind-pace at this point‚ you will be withdrawn. Week 3 02.03 Cell Structure & Function (read lesson‚ take notes‚ do assignment) 02.04 Cellular Energy (read lesson‚
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2. Define unfamiliar terms: a. What key terms need to be defined before the investigation can be understood and described? -Mcm2- protein coding gene - CDKs- multifunctional enzyme that can modify various substrates that are involved in cell cycle progression. -Holliday junction resolution- formed between sister chromatids or homologous chromosomes. Takes place during the repair of DNA lesions. 3. Critically read and
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the citric acid cycle. Differentiate between citric acid cycle and glyoxylate cycle. Relate citric acid cycle as energy source. The Central Role of the Citric Acid Cycle 3 processes play central roles in aerobic metabolism. The citric acid cycle. Electron transport . Oxidative phosphorylation. Metabolism consists of: Catabolism: the oxidative breakdown of nutrients. Anabolism: the reductive synthesis of biomolecules. • The citric acid cycle is amphibolic that
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CORE PRACTICAL ONE Describe how the effect of caffeine on heart rate in Daphnia can be investigated practically‚ and discuss whether there are ethical issues in the use of invertebrates. Daphnia‚ the water flea‚ is a small freshwater crustacean which lacks physiological methods of maintaining a constant body temperature. This means that if the environmental temperature changes‚ its body temperature does so too and its metabolic rate will be expected to rise or fall accordingly. So the temperature
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Stem Cell Research Stem cell research is no longer a future unrealistic concept‚ it is here and having enormous impacts on the medical field. Stem cells are the primary cells that can be trained to develop into any human cell tissue such as muscle‚ skin‚ and brain. However‚ in embryonic stem cell research‚ to retrieve stem cells from embryos requires a process called therapeutic cloning where a person’s DNA is put into an unfertilized human egg (effectively cloning a person)‚ the embryo is then
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does the surface area to volume ratio change with an increase in cell size? A. Surface area / volume B. Surface area / volume C. Surface area / volume Cell size D. Cell size Surface area / volume Cell size Cell size 4. How do prokaryotic cells divide? A. B. C. D. By mitosis By meiosis By budding By binary fission 5. What can the extracellular matrix of cells be made of ? A. B. C. D. I. II. Polysaccharide Glycoprotein
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Cell Membrane The Cell Membrane- The cell membrane is a semi-permeable membrane that surrounds the cytoplasm of a cell; the cell membrane is made up of phospholipids‚ proteins and carbohydrates. Its function is to protect the integrity of the interior of the cell allowing certain substances into the cell‚ while keeping other substances out. The phospholipids form a thin‚ flexible sheet while the proteins float in the phospholipid sheet like an ice berg‚ and the carbohydrates extend out from the
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