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Science Lab Past Papers

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Science Lab Past Papers

These results show a strong correlation between an increase of ca2 levels in the root cap and stimulation of root elongation. The researcher describes the experimental design, the apparatus, methods of gathering data and type of control. The presence of methyl jasmonate in the atmosphere of chambers containing plants from three species of two families, solanaceae and fabaceae, results in the accumulation of proteinase inhibitors in leaves of all three species.

Most of the paper should be written in the (was, were). Sawhney 1974, ahokas 1982, saini and aspinall 1982, rastogi and sawhney 1990, nakajima the objective of this study was to determine a possible relationship between endogenous cytokinins with male sterility in the genic male sterile system in. Since your introduction went from the general to a specific question, going from the specific back to the general will help to tie your ideas and arguments together.

Instead of writing first pour agar into six petri plates. Scientific papers must be written clearly and concisely so that readers with backgrounds similar to yours can understand easily what you have done and how you have done it should they want to repeat or extend your work. Cells were cultured on a my slant at 30oc for 48 h, transferred to my broth and cultures at 30oc overnight.

For clear communication, the paper obviously requires proper usage of the english language and this will be considered in evaluating your reports. The abstract section in a scientific paper is a concise digest of the content of the paper. Plant growth substances, both exogenously applied and endogenous, have often been implicated in the regulation of male sterility in several plant species (frankel and galun 1977, kaul 1988).

If your work has been supported by a grant, you would also give credit for that in this section. The data rather indicate that phototropism is caused by the light-induced, local accumulation of growth inhibitors against a background of even auxin distribution, the diffusion of auxin being unaffected. An example of a good, self-explanatory title would be the effects of light and temperature on the growth of populations of the bacterium,.

When you have completed the practice exam, a green submit button will appear. Present only the most relevant ideas and get quickly to the point of the paper. When writing papers for the biology department, you can assume that your audience will be readers like yourselves with similar knowledge. This section should not offer any for those particular conclusions--these should have been presented in the discussion section. Cbe style manual a guide for authors, editors and publishers in the biological sciences.


#15 WRITING: LAB REPORTS AND SCIENTIFIC PAPERS Most lab ...


Most lab reports follow similar rules in their written structure. Different science ... However, most lab reports – and formal scientific papers – contain these basic ...

Science Lab Past Papers

Scientific Reports - The Writing Center
We're going to proceed by explicitly connecting each section of the lab report to the ... much better than jotting results down hurriedly on a scrap piece of paper. ..... Passive voice vs. first person: In the past, scientific journals encouraged their  ...
Science Lab Past Papers The quantitative estimation of labelling, The striking agreement between changes in microtubule orientation observed at the outer epidermal wall during tropic bending and during induction or straight growth by external auxin strongly indicates that auxin is, in fact. Then put the plates into the incubator. Please note that past papers and specimen answers for Chemistry modules can be . The rules of writing a scientific paper are rigid and are different from those that apply when you write an english theme or a library research paper. Interplant communication airborne methyl jasmonate induces synthesis of proteinase inhibitors in plant leaves. Mode of action of natural growth inhibitors in radish hypocotyl elongation -- influence of raphanusanins on auxin-mediated microtubule orientation. Scientific papers must be written clearly and concisely so that readers with backgrounds similar to yours can understand easily what you have done and how you have done it should they want to repeat or extend your work.
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    This section explains how and, where relevant, when the experiment was done. Exceptions do occur if several factors were manipulated, all of them do not have to be listed. Gold particles were predominant over the nuclear nucleolus-like bodies (nlbs) (fig. The strain was maintained on malt extract-yeast extract (my) agar as described by tanaka and kanbe (1986). A research paper is a method of communication, an attempt to tell others about some specific data that you have gathered and what you think those data mean in the context of your research.

    For example, effects of light and temperature on the growth of four species of bacteria would be correct. This section may also include background information about the problem such as a summary of any research that has been done on the problem in the past and how the present experiment will help to clarify or expand the knowledge in this general area. Unilateral application of 1 to 20 mm ca2 to the root cap always induced unequivocal curvature of roots away from the ca2 source in alaska pea and to a greater extent in the roots of the agravitropic mutant, (figs. Data assembled in tables andor figures should. An example of a good, self-explanatory title would be the effects of light and temperature on the growth of populations of the bacterium,.

    If the title had been effect of environmental factors on growth of , the reader would not know which environmental factors were manipulated. Also the data do not prove a causal relationship between auxin action on microtubule orientation and tropic curvature. Cytokinins, gibberellins, auxins and abscisic acid, as well as polyamines, are all known to affect pollen and stamen development in a number of species (e. Most of the paper should be written in the (was, were). If any work was done in a natural habitat, the worker describes the study area, states its location and explains when the work was done. Tables or figures, references to tables or figures, or references to literature cited usually are not included in this section. The results are in contrast to the previously proposed model that an increased level of ca2 in the root cap mediated inhibition of root growth (hasenstein et al. The present tense (is, are) is used when stating generalizations or conclusions. The text the data presented in the tables and figures and calls attention to the important data that the researcher will discuss in the discussion section and will use to support conclusions. Although the distribution histogram of gold particles over the nuclear nlbs showed that labelling varied from 40 to 130 particles mm-2, most of that fell in the range of 80 - 90 particles mm-2 (fig.

    Most of the paper should be written in the PAST TENSE (was, were). The present tense (is, are) .... Writing the scientific paper in the investigative lab. Amer. Biol.

    Past exam papers - Information for current staff & students, The ...

    Stage 1 papers; Stage 2 papers; Stage 3 papers; Research skills final ... Please note that past papers and specimen answers for Chemistry modules can be ...
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    Wents classical experiment on the diffusion of auxin activity from unilaterally illuminated oat coleoptile tips (went 1928), was repeated as precisely as possible. For example, effects of light and temperature on the growth of four species of bacteria would be correct. If the title had been effect of environmental factors on growth of , the reader would not know which environmental factors were manipulated. Since your introduction went from the general to a specific question, going from the specific back to the general will help to tie your ideas and arguments together. Since factors such as dense ground cover may suppress seedling emergence regardless of the amount of seed predation (harper 1977), additional studies are needed to clarify the effect of seed predation on seedling emergence Buy now Science Lab Past Papers

    Personal Statement Vs Essay

    Cells at the exponential phase were spread on a my plate and further incubated at 30oc for 4 to 6 h before harvesting for microscopy. The striking agreement between changes in microtubule orientation observed at the outer epidermal wall during tropic bending and during induction or straight growth by external auxin strongly indicates that auxin is, in fact, functionally involved in mediating asymmetric growth leading to organ curvature. Good luck! For accurate volume measurements, which is the best piece of equipment to use? If you are dissecting a specimen, which would you be least likely to use to help you? The molecules of the liquid get stuck on the container walls at it is poured in the molecules of the liquid are more attracted to the container than each other the molecules of the liquid are more attracted to each other than the container the molecules at the surface are a different density than those at the bottom if you are looking through an eyepiece with 10x magnification, and the objective lens youre using is 40x magnification, what is the total magnification of the image? Which part of the microscope would you use to make small adjustments to the magnified image? What did archimedes use to determine that the crown was not really made of gold? Choose your answers to the questions and click next to see the next set of questions Science Lab Past Papers Buy now

    Persuasive Essay Intro Structure

    Plant growth substances, both exogenously applied and endogenous, have often been implicated in the regulation of male sterility in several plant species (frankel and galun 1977, kaul 1988). An abstract is intended to be self-explanatory without reference to the paper, but is not a substitute for the paper. Because the site of action for ca2 in gravitropism is considered to be the root cap rather than the zone of elongation, we focused on the role of the ca2cap interaction in root growth as well as in gravitropic responses. Scientific experiments are demanding, exciting endeavors, but, to have an impact, results must be communicated to others. Remember that experiments do not always need to show major differences or trends to be important Buy Science Lab Past Papers at a discount

    Opinion Essay Organ Donation

    Cells at the exponential phase were spread on a my plate and further incubated at 30oc for 4 to 6 h before harvesting for microscopy. Mode of action of natural growth inhibitors in radish hypocotyl elongation -- influence of raphanusanins on auxin-mediated microtubule orientation. Excerpted from farmer, e. Then put the plates into the incubator. Do not include any information that is not contained in the body of the paper.

    If the title had been effects of light and temperature on the growth of an organism, then the reader would not know which organism was studied. Species-dependent effects of seed predation and ground cover on seedling emergence of old-field forbs. The results are in contrast to the previously proposed model that an increased level of ca2 in the root cap mediated inhibition of root growth (hasenstein et al Buy Online Science Lab Past Papers

    Overcrowding In Prisons Essays

    Cbe style manual a guide for authors, editors and publishers in the biological sciences. One important general rule to keep in mind is that a scientific paper is a report about something that has been done in the past. Also the data do not prove a causal relationship between auxin action on microtubule orientation and tropic curvature. Excerpted from kanbe, t. Therefore, we examined the effects of both seed predation and ground cover (.

    Methyl jasmonate, a common plant secondary compound, when applied to surfaces of tomato plants, induces the synthesis of defensive proteinase inhibitor proteins in the treated plants and in nearby plants as well. April, moose sightings increased over those in a previous study (roche entries in the literature cited section are listed alphabetically by author(s) and chronologically for papers by the same author(s) Buy Science Lab Past Papers Online at a discount

    One Nation Slightly Divisible Essay

    Mode of action of natural growth inhibitors in radish hypocotyl elongation -- influence of raphanusanins on auxin-mediated microtubule orientation. Listed below are several examples of how citations should be presented in the text of your paper. Present only the most relevant ideas and get quickly to the point of the paper. However, determination of the absolute amounts of indole-3-acetic acid (iaa) in the agar blocks, using a physicochemical assay following purification, showed that the iaa was evenly distributed in the blocks from the illuminated and shaded sides. However, our results do show that microtubule reorientation is a specific auxin-mediated response which can be used as a diagnostic test for an asymmetric distribution of the hormone, correlated with asymmetric growth Science Lab Past Papers For Sale

    Persuasive Essay On Early Childhood Education

    If necessary, be sure to find out what these formats are and use them appropriately. A major goal of plant ecology is to explain spatial variation in a species frequency of occurrence. The researcher would then include the names of the bacteria in the materials and methods section of the paper. The presence of methyl jasmonate in the atmosphere of chambers containing plants from three species of two families, solanaceae and fabaceae, results in the accumulation of proteinase inhibitors in leaves of all three species. This section simply states what the researcher thinks the data mean, and, as such, should relate directly back to the problemquestion stated in the introduction.

    The researcher describes the experimental design, the apparatus, methods of gathering data and type of control For Sale Science Lab Past Papers

    Personal Essay Essay

    Ca2 application to alaska pea roots and approximately 80 greater than control for 12 h following the treatment in pea. Sawhney 1974, ahokas 1982, saini and aspinall 1982, rastogi and sawhney 1990, nakajima the objective of this study was to determine a possible relationship between endogenous cytokinins with male sterility in the genic male sterile system in. A summary is a brief restatement of preceding text that is intended to orient a reader who has studied the preceding text. Do not begin each section on a new page. The text the data presented in the tables and figures and calls attention to the important data that the researcher will discuss in the discussion section and will use to support conclusions Sale Science Lab Past Papers

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