Exercise 1: Correct Use of the Scientific Method and an Experiment with Macromolecules I. Objectives In this lab‚ students will: a.) Learn how to utilize the Scientific Method to develop a testable hypothesis b.) Generate an effective experimental design from a hypothesis c.) Understand the chemical differences between different macromolecules and how these differences can be used to design tests for each molecule. d.) Identify macromolecules in solutions using chemical analyses. e.) Practice
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ABSTRACT The exercise was about the techniques in proper sectioning of plant tissues and staining techniques so that the study of plant structure will be easier. In free hand sectioning‚ the plant organ must be 45° upright and is held between the thumb and the base of the forefinger. A razor blade was used to cut the plant thinly in cross sections. Obliquely cut tissue is a big mistake since the surface of the tissue will not be even upon viewing under the microscope. Iodine-Potassium-Iodide
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Photosynthesis in C3 plants and their adaptations to the Mediterranean Climate Abstract. Photosynthesis is the process that plants use to harness the energy of the sun through light and use it to create sugars. Photophosphorylation is the first step of photosynthesis and occurs in the chloroplast. Light is captured by light harvesting complexes. The light excites electrons which excite surronding electrons through resonance induction and excite special pairs of electrons. These electrons help pump
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TOK Nature of sense perception Q1A) In what ways does the biological constitution of a living organism determine‚ influence or limit its sense perception? B) If humans are sensitive only to certain ranges of stimuli‚ what consequences or limitations might this have for the acquisition of knowledge? Ans-A- The biological constitution of a living organism has a mammoth influence on the sense perception of an organism. The biological institution of an organism can even enhance or degrade the level
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SUMMATIVE ASSESSMENT –I (2011) Lakdfyr ijh{kk&I SCIENCE / foKku Class – IX / & IX Time allowed: 3 hours fu/kkZfjr le; % 3 ?k.Vs 470011 Maximum Marks: 90 vf/kdre vad % 90 General Instructions: (i) The question paper comprises of two sections‚ A and B. You are to attempt both the sections. (ii) All questions are compulsory. (iii) There is no overall choice. However‚ internal choice has been provided in all the five questions of five marks category. Only one option in such
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Yogurt is a valuable health food for both infant and elderly people. The nutritional constituents of yogurt are derived from the milk used in making it‚ those that are synthesized by the lactic acid bacteria and those that are added by the manufactures. The nutritional value of the milk protein is well-preserved during the fermentation process. Like most dairy products‚ it is a good source of protein. The milk proteins in yogurt are partially hydrolyzed and therefore become more digestible. In comparison
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Exercise 5: Gymnosperms and Angiosperms ______________________________________________________________________________ OBJECTIVES: 1. Describe the distinguishing features of gymnosperms and angiosperms. 2. Understand the evolutionary significance of pollen and seeds. 3. Understand the function of a cone‚ a flower‚ and a seed. 4. Relate the life cycle of angiosperms to the other phyla of the plant kingdom. ______________________________________________________________________________ INTRODUCTION
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Biology – HSC Online Extract from Biology Stage 6 Syllabus (Amended October 2002) © Board of Studies‚ NSW 9.2 Maintaining a balance: 1. Temperature range Background: All organisms are adapted to a particular environment with its characteristic temperature range. The temperature range allows the organism’s enzymes to control its metabolism by operating at their optimum efficiency within this range. Some organisms are adapted to live at high temperatures (80 - 100oC) and these are called thermophiles
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PLANT BIOLOGY WITH RESPECT TO ABIOTIC STRESSES TO ENVIRONMENT [pic] Plant biology with respect to Abiotic stresses to environment Biology assignment:- Given by MAM MARYIM To Group # 4 Group members:- UMMA-E-FARWA (34) ADEEB DANISH (20) MUHAMAD SHEHZAD (33) Content • Abiotic stress • Abiotic stress conditions • Drought • Salinity • High temperature • Chilling • Flooding • Troposphere ozone • Oxidative damage • Defense mechanism
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Alan’s Biology Notes Chapter 1 – Basis of Life Ingestion – acquisition of food Assimilation – building of new tissues from digested food Monosaccharide – (carb) single sugar subunit Polysaccharide – (carb) polymer‚ insoluble in water; ex: glycogen / cellulose Lipids – (2:1 H/O ratio) 3 FA bonded to glycerol; chief means of food storage · Major component of adipose tissue · Steroids‚ waxes‚ carotenoids‚ porphyrins Proteins - polymers of AA joined by peptide bond / 1* = AA sequence‚ 2*
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