Phytochemical screening of the leaves extract All the solvent extracts were subjected to phytochemical screening and the results are presented in Table 1. Qualitative analysis of the leaf extract of A. muricata showed the presence of various phytochemicals. Methanolic extract of Annona muricata leaves showed the presence of alkaloids, flavonoids, coumarins, carbohydrates, glycosides, proteins, phenols, anthraquinones, steroids, phytosterols, cardiac glycosides and oil in the leaf. Carbohydrates,
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neutralizes various organic anions and other Photosynthesis compounds within the plant, helping to stabiThe role of K in photosynthesis is comlize pH between 7 and 8...optimum for most plex. The activation of enzymes by K and its enzyme reactions. involvement in adenosine triphosphate (ATP) The amount of K present in the cell deter- production is probably more important in regmines how many of the enzymes can be acti- ulating the rate of photosynthesis than is the vated and the rates at which chemical
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Communication, Homeostasis & Energy Communication & Homeostasis Outline the need for communication systems within multicellular organisms, with reference to the need to respond to changes in the internal and external environment and to co-ordinate the activities of different organs. Organisms need to respond to external stimuli, e.g. temperature, oxygen concentration and levels of sunlight. These may be over time, e.g. winter fur to summer fur, or quickly, e.g. changing size of pupils. Internal
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G. ROOT BARRIER. This layer prevents plant roots from reaching and penetrating the waterproofing membrane or insulation if there are any. Plants with aggressive root barriers usually penetrate the membrane in search of moisture. H. PROTECTION BOARD. The protection board is used to prevent any damage to the membrane until all essential components are installed. According to Tolderlund (2010), membranes are usually made of durable materials that are water resistant and have a thickness of between 1/8
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Institution: Course: Name: Date: The author of the article " When Did Photosynthesis Emerge on Earth?” is David J. Des Marais. The author examines the period when photosynthesis emerged and the issues surrounding its emergence in our biosphere. The author looks at the historical and evolutionary evidence to advance the topic of the emergence of photosynthesis. The article is majorly based on the biosphere changes and the changes in the oxygen levels and the metamorphosis
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the lamp and the Cabomba in the glass chamber attached to capillary tube, on the dependent variable, the distance (mm) travelled in 120 seconds by the sodium hydrogen carbonate in the capillary tube to suggest the effect of light intensity on photosynthesis. Prediction I predict that the shorter the distance (cm) between the lamp and the Cabomba in the glass chamber attached to the capillary tube the further the distance (mm) moved by the sodium hydrogen carbonate in 120 seconds. I predict a
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BIOLOGY OF PROTIST ABUDANCE AIM: Study the abudance of protist in a cowdung culture INTRODUCTION: Protists belong to the Kingdom Protista, which include mostly unicellular organisms that do not fit into the other kingdoms. Though mostly are unicellular there are some multicellular organisms within the kingdom. Thus species form of the “body” of the organism consists of a variety of types of cells, each type with its own specialized function unlike the unicellular form. We also find colonial protist
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Abstract: In this experiment we observed and later identified the effects of certain herbicide application on plant growth. We planted a total of fourteen seeds in each of our eight different pots; seven soybean seeds and seven corn seeds. We designated four different treatment groups that were labeled the following; control, unknown, known, and extra treatment group. Over the course of two weeks the plants were placed in a greenhouse and given the proper measures to germinate. Then, the greenhouse
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another, from less than 20% to more than 90%. After the water is removed, the bulk of the dry plant material consists of carbohydrate compounds containing the elements carbon, hydrogen, and oxygen. Using the energy of sunlight in a process called photosynthesis, plants make carbohydrates in their leaves. The carbon and oxygen in carbohydrates come from carbon dioxide, which the plant absorbs from the air, and the hydrogen comes from water absorbed both through the roots and through the leaves. About
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Light Intensity Analysis draft for BY6 assessment- Analysis (A)- (a) Description of trend shown by results: It is clear from my graph that there is a negative correlation. As the distance between the lamp and cabomba sp increased, the mean distance moved by the NAHCO3 solution in the manometer over 3 minutes decreased. The mean distance moved by NAHCO3 solution in the manometer over 3 minutes falls rapidly by 100 mm between the distances 4 and 12 cm. Yet, the mean distance moved by the NAHCO3
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