Enzymes and their importance in plants and animals (25 marks) Enzymes are biological catalysts‚ which accelerate the speed of chemical reactions in the body without being used up or changed in the process. Animals and plants contain enzymes which help break down fats‚ carbohydrates and proteins into smaller molecules the cells can use to get energy and carry out the processes that allow the plant or animal to survive. Without enzymes‚ most physiological processes would not take place. Hundreds of
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Plant Cell Plant cells are eukaryotic cells or cells with membrane bound nucleus. Generally‚ plant cells are larger than animal cells and are mostly similar in size and are rectangular or cube shaped. Plant cells are similar to animal cells in being eukaryotic and they have similar cell organelles. What is a Plant Cell? Back to Top Plant cells are eukaryotic cells i.e.‚ the DNA in a plant cell is enclosed within the nucleus. The most important distinctive structure of plant cell is the presence
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Benefits and Risks of Nuclear Power in California By Roger Dunstan Requested by Assembly Member Helen Thomson APRIL 2002 CRB 02-008 Benefits and Risks of Nuclear Power in California By Roger Dunstan ISBN NO. 1-58703-156-6 About the Author Roger Dunstan is an Assistant Director for the California Research Bureau. Acknowledgements Many people provided assistance in a paper such as this‚ but several deserve special mention. Trina Dangberg‚ Sheila Oliver‚ and Judy Hust
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Effects of Plant Nutrient Deficiency Abstract This experiment aimed to determine the effects of nutrient deficiency on plants. This was done by examining tomato plants grown in a medium that contained all the nutrients needed to survive and comparing those results to plants that were grown in nutrient deficient mediums. The biomass and standard chlorophyll content were the focus of the experiment. The biomass was measured by taking the mass of the plant. The standard chlorophyll content was
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Jindal Public School Assignment-Chapter-2 Sexual Reproduction in Flowering Plants Biology Class XII 1. What is meant by monosporic development of a female gametophyte? 2. Name the part of flower that contributes to fruit formation in strawberry and Guava respectively 3. With a neat diagram explain the 7-celled‚ 8-nucleate nature of the female gametophyte. 4. Why is it necessary to emasculate a bisexual flower in a plant breeding programme? How it is done? Mention the condition under which emasculation
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The Effect of Different Light Colours on Plant Growth Dianne R. Calub Marshela Alpha B. Gesmundo BS-Environmental Science Prof. Jayson Antonio Chemistry Department January 04‚ 2012 Abstract The goal of this study is to learn how the colour of light affects photosynthesis‚ to identify the effects of different coloured lights on plant growth‚ and to identify the potential use of different light colours as a growth regulator. An experiment was performed with the help of 7 students. Mustard
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Study Sheet for Plant Diversity List the characteristics of land plants. Terms you should be using in that list: multicellular‚ eukaryotes‚ cuticles‚ photoautotrophic‚ cellulose‚ vascular tissue (most have but not all)‚ protection of the embryo‚ alternation of generations lifecycle. All plants are thought to have evolved from a green algal- like ancestor. The first land plants evolved approximately ____________ million years ago. Alternation of Generations lifecycle. Label
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Directors‚ Paducah Gaseous Diffusion Plant/Department of Energy FROM: Kathleen Hayes‚ Consultant for Paducah Gaseous Diffusion Plant/Department of Energy DATE: 17 November 2012 RE: Notification of Potentially Hazardous Working Conditions and Worker Health Introduction Ethical and moral issues have been brought into question when determining the proper protocol when informing employees of potential health risks while on the job. Paducah Gaseous Diffusion Plant and the Department of Energy have
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Assignment 4: Bataan Nuclear Power Plant The Bataan Nuclear Power Plant (BNPP) is located in Morong‚ Bataan and was constructed under the administration of President Ferdinand Ferdinand Marcos during the Martial Law period. Westinghouse was contracted to build the light water reactor‚ deign to produce 621 megawatts of electricity. This power plant was constructed under loan $600 million for two units but controversially it ballooned up to $2.3 billion. After The Marcos’ was thrown to Hawaii‚ the
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