Trembley was a Swiss naturalist who first studied the fresh water hydra. When Trembley first observed hydra he thought that they were plants because of their green colour‚ appearance and immobility. Trembley then observed the body contractions and relaxations and the movement of the tentacles and so called them very sensitive plants. When the surrounding water is disturbed hydra shows contractions and relaxations of the body. This made Trembley perform an experiment in which he cut the polyps and
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Explain in detail why palisade cells in plants contain many chloroplasts Palisade cells are cells which are found within the leaves of many plants. They contain chloroplasts‚ which convert the energy in light to chemical energy through photosynthesis. The cylindrical shape of palisade cells allows a large amount of light to be absorbed by the chloroplasts. Beneath the palisade mesophyll are the spongy mesophyll cells‚ irregularly-shaped cells that having many intercellular spaces to allow the
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BLUE GREEN ALGAE ESSAY Blue Green Algae is a natural part of our water ways‚ which has existed in harmony in these environments for centuries. It has only become a problem in recent times due to its increased growth and aggression due to factors caused by humans. These factors consist mainly of excess phosphorous seeping into the water ways from fertilisers used to promote the growth of farm land cropping. Essentially we have over fed Blue Green algae‚ causing an unstable explosion of growth
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Exploration of the digital world My chosen research topic is the natural dietary supplement Spirulina. Spirulina is a simple one-celled microscopic blue-green algae with the scientific name of “Arthrospira platensis”. It is grown in tropical‚ high salt alkaline waters where there is strong sunlight and a pollution free environment. The algae is harvested and spray dried and presents in a powder form for further processing. By volume Spirulina has unusually high concentrations of proteins‚ vitamins
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Aim: Observing pond water. Materials: Microscope‚ slide of pond water‚ protests/monera handouts. Procedure: 1. Collect microscope from trolley. 2. Set up microscope and switch on the microscope light. 3. Collect specimen and handouts. 4. Sketch 4-6 different species on medium power setting. 5. Try to estimate size of cells. Observations: I noticed that there was a lot of activity on the slide. There were many little circle-shaped things that were moving quickly all over the slide. I saw a
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Table of Contents Title: Page no. Introduction …................................................................... 5-6 Background ….................................................................... 7-8 Areas of Research ……………………………………………………………. 9-12 Hypothesis …..................................................................
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Table of Contents: 1. Plot Synopsis……………………………………………………................................................2 2. Detailed description of 3 scenes/ chapters……………………...……….……………...........2-3 Chapter 3 Chapter 11 Mr. Keating´s farewell 3. Interpretation of 5 Symbols/motifs/quotes…………………………………………...………3-4 4. My own review…………………………………………………................................................5 5. Appendix………………………………………………………………………………......……5 Information about the author 6. Sources…………………………………………………………………
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Red tide or harmful algae blooms can be found all over the world. Algae blooms occur when elevated concentrations of microscopic algae are present in the water. These blooms often occur in the Gulf of Mexico and along Florida’s coast almost every summer and are almost always caused by one type of microscopic algae known as Karenia Brevis. When this alga accumulates it can wreck havoc on an ecosystem and has various detrimental side effects‚ not only does it affect the environment‚ but it also can
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Iron (Fe) Deficiency i*n *Cyanobacteria Fe in cyanobacteria serves as an essential redox component important to diverse metabolic pathways. Fe-rich systems in cyanobacteria such as the photosynthetic apparatus and the respiratory electron transport system are dependent on Fe supply (Raven et al.‚ 1999). Other important cellular processes such as nitrogen assimilation (Raven‚ 1988)‚ ribonucleotide synthesis‚ chlorophyll synthesis and oxygen radical detoxification are also Fe dependent. Prokaryotes
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evolutionary relationships among cyanobacteria‚ red algae‚ brown algae‚ green algae‚ and flowering plants‚ observed from the results their photosynthetic pigment patterns using thin layer chromatography technique Introduction Endosymbiosis is a process where unicellular organisms engulf other cells resulting a life form that one or both cells are dependent on each other (Campbell et al.‚ 2008). Strong evidence suggests that different types of photosynthetic cyanobacteria underwent endosymbiosis that
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