Cell Structure I. Cell History A. Anton Leewenhock (1600s) - first person to observe cells - in pond water‚ using a homemade microscope B. Robert Hooke (1665) - observed many kinds of animal tissue under a microscope - concludes that all animals are made up of cells C. Schwann (1868) - observed many kinds of animal tissue - concludes that all animals are made up of cells D. Schleiden (1869) - observed many kinds of plant tissue - concludes that all plants are made up of cells E. Cell
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Name: _______________________________________ Date: _________________ Per: _____________ Cells: The Basic Unit of Life Directions: Define the key terms and then complete the following Section Reviews after reading through Sections 5.1 through 5.3. You will complete your answers on a separate sheet of paper and then staple this worksheet on top. Vocabulary Words: Cells Cell Wall Prokaryote Chromosome Cell Theory Nucleus Nuclear Envelope Cytoplasm Cell Membrane Eukaryote
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Exercise 7.3 (training!!!) 1. Find the oxidation numbers of the underlined elements in the following species. (a) (e) (i) (m) (q) (u) (y) 2. SO3 PbSO4 CoCl42CrO42SO32Ca(NO3)2 Co(NH3)43+ VO2+ CaH2 KMnO4 SCl2 N2 NaOH (c) (g) (k) (o) (s) (w) HCO3[Al(OH)4]MnO42NO2FeCl3 KOCl (d) (h) (l) (p) (t) (x) H2S2O7 H2O2 Cr2O72K2SO4 CH4 Pt(CO)4 Which of the following equations represent redox reactions? Specify the species being reduced in each case if applicable. (a) (b) (c) (d) NaI(s) + 2K(s) + 2NH3(g)
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AP Biology Chapter One Objectives 1. Briefly describe the unifying themes that characterize the biological sciences. New properties emerge at each level in the biological Hierarchy Organisms interact with other organisms and the physical environment Life requires energy transfer and transformation Structure‚ and function are correlated at all levels of biological organization Cell is an organism’s basic unit of structure and function The continuity of life is based on heritable information
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Introduction: Biology is the study of life‚ what life needs to survive‚ what makes life possible‚ how life evolves and changes‚ and how life-forms interact with one another. Characteristics of Life Living things include both the visible world of animals and plants‚ as well as the invisible world of bacteria. On a basic level‚ we can say that life is ordered. Organisms have an enormously complex organization. We’re all familiar with the intricate systems of the basic unit of life‚ the cell
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Q1:Why is reproduction essential for organisms? Reproduction is a fundamental feature of all living organisms. It is a biological process through which living organisms produce offspring’s similar to them. Reproduction ensures the continuance of various species on the Earth. In the absence of reproduction‚ the species will not be able to exist for a long time and may soon get extinct. Q2:Which is a better mode of reproduction sexual or asexual? Why? Sexual reproduction is a better mode of reproduction
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DATE: 8th October‚ 2012 SYLLABUS TOPIC: Food Tests – Semi Quantitative Test AIM: To determine the concentration of glucose present in an unknown sample‚ using a semi quantitative glucose test APPARATUS AND MATERIALS: 4% stock solution of glucose‚ water‚ 6 test tubes‚ ruler‚ water bath‚ solution of unknown concentration (Sample A)‚ Benedict’s reagent METHOD: 1. Solutions of different concentration were made from the stock solution
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Research Project 2013:Investigating the Pulse Rate In Learners Life Sciences Tara Abraham 10C 9/10/2013 Contents Research question: 2 Introduction to experiment: 2 Hypothesis: 2 Variables: 2 Independent variables: 2 Dependent variables: 2 Fixed (controlled) variables: 3 Apparatus to be used: 3 Method to be used to conduct experiment: 4 How the independent variable s going to be manipulated whilst the dependent variable is being measured. 4 Sample size: 4 Tables for girls 5 Tables for boys 6
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Test 3.5 Active Transport‚ Endocytosis and Exocytosis 1. How are active transport proteins similar to enzymes? a. They both are cells b. They both are animals c. Both the shape of the enzymes and transport protein allows binding to specific molecules only d. All of the above 2. What’s another word for transport proteins? a. Slides b. Pumps c. Poles d. train 3. What occurs during exocytosis? a. Process of taking liquids or fairly large molecules into cells b. Process of
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Biomolecules Essay Before this year‚ I could never remember what DNA stood for‚ but now‚ not only do I know that it stands for Deoxyribonucleic Acid‚ I also know that there is another kind of nucleic acid called Ribonucleic Acid. RNA is an imitation for DNA‚ and like all imitations it is not a perfect replica so therefore it has small differences‚ and these small differences house the properties and opportunities for mutations and therefore it causes evolution‚ which allows us to adapt to our
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