Molecules of Life 4 Critical large Molecules- 1.) Carbohydrates 2.)Lipids 3.)Proteins 4.) Nucleic Acids -On the molecular scale‚ members of three of these classes--- Carbohydrates‚proteins‚ and nucleic acids--- are huge and therefore called Macromolecules. - Architecture of a large biological molecule helps explain how that molecule works. ---------------------------------------------------------------------------------------------------------------------------- Macromolecules
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organelles 6. prokaryotic cell 7. eukaryotic cell 8. The giant amoeba is 5000 times larger than the smallest bacterium. 9. Prokaryotic and eukaryotic cells carry out the functions required for living‚ and both contain cytoplasm as well as cell membranes. Eukaryotic cells contain organelles and have a nucleus‚ whereas prokaryotic cells do not. 10. Eukaryotic; the cells of all multicellular living things‚ including humans‚ are eukaryotic. Section Review 7-2 1. b 2. g 3. a 4. c 5. f 6. d 7. e
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AP Biology Photosynthesis Lab Bethany Boyer Due 11/12/14 Lab Write-Up Questions First Experiment 1) The independent variable in this experiment was the presence of CO2 (carbon dioxide). The dependent variable was the speed at which the leaf disks started to float. 2) In the leaf tissue‚ the bicarbonate and light are combining to carry out photosynthesis. This will cause oxygen to collect in the leaf tissue‚ causing it to rise. 3) If we were to boil the leaf disks‚ the reaction would most likely
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September 27‚ 2011 AP Psychology‚ period 2 Consciousness Free Response 1. a) The topic of dreams is certainly a complex and interesting subject to further investigate‚ having many different aspects and meanings to it. There are many theories and ideologies regarding why dreams occur in the first place‚ such as wish fulfillment theory‚ activation synthesis theory‚ as well as cognitive development‚ information processing‚ and physiological function. Freud suggested wish fulfillment theory‚
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AP BIOLOGY EXAM ESSAY (FREE RESPONSE) QUESTIONS General directions: Answers must be in essay form. Labeled diagrams may be used to supplement discussion‚ but in no case will a diagram alone suffice. It is important that you read each question completely‚ and answer each section of the question. When giving examples‚ the first ones you give will be the ones graded. (if two examples are asked for‚ and you write about 4‚ make sure the first two are the best ones; they are the only ones counted
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states that there are an integer number of wavelengths in every standing integer number (n). 2. (a) The first shell electrons in Lithium are the closest electrons to the nucleus. In addition‚ there are proportionally more protons to electrons. This pulls the electrons even closer to the nucleus. And in Potassium‚ the outer shell electrons are a substantial distance from the nucleus. There are a greater number of protons than electrons; however‚ the large number of electrons dissipates the effect
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1. There are two main types of cells‚ prokaryotic and eukaryotic. The connection between the two can be seen right from their prefixes‚ pro meaning before and eu meaning true or good. This is because prokaryotic cells are before a nucleus and eukaryotic cells possess a true nucleus. This has led to many theories that eukaryotic cells have evolved from prokaryotes. The evidence for this is most noticeable in the structure of the cells‚ which will be compared below. Prokaryotic cells have no
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------------------------------------------------- Enzyme Pre-Lab Harry Kang 9/26/12 1) The purpose of this lab was to determine the rate of enzyme activity under variety of different conditions‚ such as‚ different amount of drops of enzymes and different temperature of water. The class measured the pressure in the test tube during the reaction of the substance with‚ 1.5 ml of H2O2‚ 1.5ml of H2O and different amounts of enzyme drops‚ to determine how much oxygen gas is produced during the reaction
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AP Bio - Modern Genetics Protein Synthesis • Start with primer • New strand is 5’ to 3’ • TATA Box - TTAATTAA • RNA Polymerase - Reads and matches bases (One recipe; only reads leading strand) • Single strand produced; mRNA • Now produced pre-mRNA (You need exon‚ not intron) • Introns create spaces‚ need ligase to connect exons to make true mRNA. • Adds a poly A tail (on 3’ side) and 5’ (prime) cap (on 5’ side) used for defense • Leaves through pore to ribosome. • Messenger RNA will attach to
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AP Biology Summer Summaries There are many differences between proximate and evolutionary causes and explanations on why we are such easy targets for diseases. The proximate explanations are described by its anatomy‚ physiology‚ and biochemistry. Evolutionary explanations go into detail on what would happen if we didn’t have the genes that cause us to get sick. Proximate causes look for what genes it is made up of and how it works. Evolutionary causes are why natural selection hasn’t eliminated
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