Practical Work Nº2: “Different methods to control osmosis” Aim: observe and test the process of osmosis through different kinds of methods: the weigh (potato)‚ the density (beetroot) and under the light microscope (onion). Hypothesis: according to the encyclopedia definition osmosis is the diffusion of a liquid (most often assumed to be water‚ but it can be any liquid solvent) through a partially-permeable membrane from a region of high solvent potential to a region of low solvent potential. Thus
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Viroids are plant pathogens that consist of a short stretch (a few hundred nucleobases) of highly complementary‚ circular‚ single-stranded RNA without the protein coat that is typical for viruses.[1] The smallest discovered is a 220 nucleobase scRNA (small cytoplasmic RNA) associated with the rice yellow mottle sobemovirus (RYMV).[2] In comparison‚ the genome of the smallest known viruses capable of causing an infection by themselves are around 2kilobases in size. The human pathogen hepatitis D is
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Biodegradable Plastic from Gabi Leaves By: Mickaela Olan 9-Apple PLASTIC • A plastic material is any of a wide range of synthetic or semi-synthetic organic solids that are moldable. Plastics are typically organic polymers of high molecular mass‚ but they often contain other substances. They are usually synthetic‚ most commonly derived from petrochemicals‚ but many are partially natural. ADVANTAGES OF PLASTIC: • Advantages of plastic are light in weight. • They can be easily moulded and have
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America. In Central America‚ Kamote tops were domesticated at least 5‚000 years ago. Sweet potatoes are native to Central America and are one of the oldest vegetables known to man. They have been consumed since prehistoric times as evidenced by sweet potato relics dating back 10‚000 years that have been discovered in Peruvian caves. Christopher Columbus brought sweet potatoes to Europe after his first voyage to the New World in 1492. By the 16th century‚ they were brought to the Philippines by Spanish
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minerals and water storing organic nutrients and other functions Absorption of water and minerals occurs near the root tips‚ where root hairs increase the surface area. Many plants have modified roots: Prop roots in mangrove Tubers in sweet potato and cassava Tubers are enlarge root or stem that acts as nutrient storage Aerial roots of the strangler fig tree Strangler fig use their roots to strangle their host to death Buttress roots large above ground roots surrounding the tree help to
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Role and impact of biotechnology in modern agriculture. Biotechnology offers prospects in addressing problems concerned with agricultural productivity and environmental safety. In order to cope up with the ever increasing population of the current world‚ biotechnological intervention to supplement conventional plant breeding efforts is indispensable. Some of the issues that can be addressed using biotechnological techniques are crop production of superior quality‚ mass production of uniform planting
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inexpensive source for these immunotherapeutic molecules. Various antigens and antibodies have already been expressed successfully in plants and have been shown to retain their native functional forms. Edible plant vaccine against diarrhoea‚ expressed in potato‚ and antibody against dental caries‚ expressed in tobacco‚ is already in pre-clinical human trials. Attempts are being made to express many proteins of immunotherapeutic use at high levels in plants and to use them as bio-reactors of the modern era
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Indonesian cuisine is diverse‚ in part because Indonesia is composed of approximately 6‚000 populated islands of the total 18‚000 in the world’s largest archipelago.[1] Many regional cuisines exist‚ often based upon cultural and foreign influences.[1] Indonesian cuisine varies greatly by region and has many different influences.[1][2][3] Throughout its history‚ Indonesia has been involved in trade due to its location and natural resources. Additionally‚ Indonesia’s indigenous techniques and ingredients
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Effect of an Orange on Catalase Activity in Comparison with a Potato Introduction Catalysts are substances that increase chemical reactions while using less energy. They also remain unchanged after use‚ which enables it to be used repeatedly. Cells have special catalysts called enzymes‚ which are specialized proteins that help accelerate chemical cell reactions. (Evert‚ RF & Eichhorn‚ SE 2013). Enzymes also control plant metabolic processes such as respiration (Evert RF‚ Eichhorn SE & Perry JB
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around almost entirely and with the Quechua people‚ their nexus is the potato. In their culture they use over two thousand-eight hundred types of potatoes which all differ in flavour‚ colour‚ and texture. As a food source it is extremely healthy and very high in antioxidants but they do not just use the potato for food‚ but many other things as well. The potato is a part of ceremonies and celebrations such as marriage. The potato is also used for a large variety of other things which include; medicine
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