2.3.1 Organelle Structure and function nucleus enclosed in double membrane with pores contains chromosomes with genes made of DNA to control protein synthesis ribosomes made of RNA and protein free in cytoplasm or attached to RER site of protein synthesis rough endoplasmic reticulum interconnected sacs with ribosomes attached transport proteins to other parts of cell smooth endoplasmic reticulum synthesis of lipids and steroids mitochondria double
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1 TNPSC CSSE-I ORIGINAL PAPER EXAM HELD IN 2010 – FULLY SOLVED Questions : 200 DEGREE STD.‚ Marks : 300 GENERAL KNOWLEDGE & GENERAL ENGLISH 1. Who is the Governor of Reserve Bank of India at present ? A. B.Y. Reddy B. C. Rangarajan C. Bimal Jalan D. D. Subbarao. Match List I with List II correctly and select your answer using the codes given below : List I a. Sirpi b. Gnana Koothan c. Erode Thamizh Anban d. Puviyarasu List II 1. Thoni Varungiradhu 2. Iduthan 3. Anru Veru Kizhamai 4. Surya
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Chapter 35 Plant Structure‚ Growth‚ and Development Lecture Outline Overview: Plastic Plants? • The fanwort‚ an aquatic weed‚ demonstrates the great developmental plasticity that is characteristic of plants. o The fanwort has feathery underwater leaves and large‚ flat‚ floating surface leaves. o Both leaf types have genetically identical cells‚ but the dissimilar environments in which they develop cause different genes involved in leaf formation to be turned on or off.
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Road This article is about a route‚ thoroughfare or way that supports travel by a means of conveyance. For a place outside a port where a ship can lie at anchor‚ see Roadstead. For public roads‚ see Highway. For other routes‚ see thoroughfare. For other uses‚ see Road (disambiguation). A road is a thoroughfare‚ route‚ or way on land between two places‚ which has been paved or otherwise improved to allow travel by some conveyance‚ including a horse‚ cart‚ or motor vehicle. Roads consist of one
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PREFACE This term paper wants to unveil mysteries of the world on the challenge of survival and existence and on its battle on climate change. In particular‚ this will provide the future readers some recent information on the earth’s condition as it is continuously affected by climate change. Included in this paper are the overviews from the different resources on what is really climate change; its causes‚ effects‚ and preventive ways to reduce the effect of earthly change.
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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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1.1.1 In small unicellular organisms‚ substances move around slowly by diffusion. Diffusion is too slow to move substances round the larger bodies of multicellular organisms. They have a circulatory system: substances are carried in blood pumped by a heart. In a closed circulatory system (eg in vertebrates) blood is enclosed in narrow blood vessels. This increases efficiency: blood travels faster as a higher pressure is generated. Valves ensure blood flows in one direction:
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Pompeii & Herculaneum 1. Geographical context Physical environment: geographical setting‚ natural features and resources of Pompeii and Herculaneum Geographical setting Pompeii and Herculaneum were located in Campania‚ southwest Italy near Bay of Naples. Herculaneum was a waterfront town situated on the coast of Bay of Naples 7km west of Mt Vesuvius‚ while Pompeii was slightly inland on the Sarno river‚ 9km southeast of Mt Vesuvius. Both towns were linked to Rome through sea
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Climate change Climate change is a significant and lasting change in the statistical distribution of weather patterns over periods ranging from decades to millions of years. It may be a change in average weather conditions or the distribution of events around that average (e.g.‚ more or fewer extreme weather events). Climate change may be limited to a specific region or may occur across the whole Earth‚ such as global warming. Terminology The most general definition of climate change is a change
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Specification GCE Biology Pearson Edexcel Level 3 Advanced Subsidiary GCE in Biology (8BI01) First examination 2014 Pearson Edexcel Level 3 Advanced GCE in Biology (9BI01) First examination 2014 Issue 5 Edexcel GCE in Biology – Foreword Edexcel is delighted that this specification has been developed in collaboration with the Salters-Nuffield Advanced Biology project‚ which leads the field in innovative approaches to teaching and learning in biology at A level. Salters-Nuffield
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