AN INVESTIGATION OF PHOTOSYNTHETIC ELECTRON TRANSPORT OF CHLOROPLASTS FROM _SILVERBEET LEAVES_ Introduction Photosynthesis is the process by which plants use the energy from sunlight to produce sugar‚ which cellular respiration converts into ATP‚ the "fuel" used by all living things. The conversion of unusable sunlight energy into usable chemical energy is associated with the actions of the green pigment‚ chlorophyll. Light Dependent Reactions are the initial stage of photosynthesis‚ in which solar
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Biology textbook- pg. 80 3) Distinguish between the autotrophic and heterotrophic nature of plants and animals. Animals have heterotrophic cells; hence‚ they live off nutrients of other species by eating. Most plants have autotrophic cells‚ which allow them to generate their own food with photosynthesis. 4) Explain the following statement: ‘All living things depend on plants’. As animals are heterotrophs‚ they need to eat other species to survive. If mammals only depended on other mammals‚ there
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THE KEY ROLES OF CELL DIVISION The ability of organisms to reproduce best distinguishes living things from nonliving matter. The continuity of life is based on reproduction of cells‚ or cell division. In unicellular organisms like amoeba‚ division of one cell reproduces the entire organism. Multicellular organisms depend on cell division for: — Development from a fertilized cell — Growth — Repair Cell division is an integral part of the
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Bacteria: Prokaryotes; Common Bacteria Kingdom Protista Eukaryotes; Unicellular organisms (small) Algae (unicellular‚ colonial‚ small or multicellular‚ Large) Kingdom Fungi Eukaryotes; Non-photosynthetic‚ multicellular (except yeast)‚ External digestion Kingdom plantae Eukaryotes; photosynthetic‚ multicellular Kingdom Animalia Eukaryotes; non-photosynthetic‚ multicellular‚ internal digestion BASIC PROPERTIES OF LIFE 1. Cellular organization
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Paper 1 Chapter 1: Cell structure May/June 03 1 An actively growing cell is supplied with radioactive amino acids. Which cell component would first show an increase in radioactivity? A Golgi body B mitochondrion C nucleus D rough endoplasmic reticulum 2 Which pair of organelles has internal membranes? A chloroplasts and mitochondria B chloroplasts and nuclei C mitochondria and ribosomes D nuclei and ribosomes 3 Which combination is found in a prokaryotic cell? Endoplasmic reticulum DNA RNA Nucleus
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Unknown Microorganisms May 1‚ 2013 This paper is based on an experiment done in the laboratory over a period of time using the standard method of identifying an unknown microorganism relying on features such as morphology‚ arrangements and biochemical reactions. It was done in succession with each step complimenting the other. At the end of the experiment three microorganisms Bacillus azotoformans‚ Staphylococcus aureus‚ and Escherichia coli was identified and one result was inconclusive. The
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Biology Notes: Threats to biodiversity in MA 1. Climate change: temp‚ sea levels‚ precipitation 2. Non climate threats such as habitat loss‚ habitat fragmentation‚ and invasive species and air and water pollution Fragmentation: often due to man (dams‚ roads‚ and general development) Elements of biodiversity: Species‚ ecosystems & landscapes Mammals from bats to bears Bats got the white nose fungus which caused the bats to die and the insect population flourished because the bats main job
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Aerobic Respiration Breaking down glucose to release energy Products are Carbon dioxide and water Diffusion is … the movement of molecules from a region of high concentration to a low concentration until the concentration is equal. Role of a human circulatory system: Diffuse In – oxygen (O2)‚ dissolved food (glucose) and water (H2O) Diffuse Out – carbon dioxide (CO2)‚waste and water(H2O) Respiration – releasing energy in cells Breathing – getting air into and out of your body
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CARIBBEAN EXAMINATIONS COUNCIL Car ib b e an Se con d ar y Ed ucat ion Ce r t if icat e ® CSEC® BIOLOGY SYLLABUS a) Effective for examinations from May–June 2015 NCH 2.SYLLABUS CXC 20/G/SYLL 13 Published by the Caribbean Examinations Council All rights reserved. No part of this publication may be reproduced‚ stored in a retrieval system‚ or transmitted in any form‚ or by any means electronic‚ photocopying‚ recording or otherwise without prior permission of the author or
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Sasha Thrower Mr. Gillet AP Literature Period 2 October 13‚ 2014 “Human Condition” Response Reading this poem at first was a challenge. The only thing I got of the poem was‚ a man walking around at night in thick fog attempting to find his way to some place important in which he did not know where that place was. The second time reading was much more insightful and made me realize how a simple idea of a man walking to an unknown place relates to me in many ways. In the first part of the poem‚
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