Objectives: To use the process of chromatography to separate plant pigments. To compare the plant pigments found in spinach and red leaf lettuce leaves. Hypotheses: I believe the spinach leaf in the acetone will have a higher pigment of chlorophyll a and the red leaf lettuce will have a higher pigment of anthocyanin. I believe the spinach leaf in distilled water will have a higher pigment of chlorophyll a and the red leaf lettuce will have a higher pigment of anthocyanin. Discussion Questions:
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How are the levels of nitrate diff in parts of a plant 6. What are steps of the assimilation of nitrogen 7. What are the two types of GOGAT and what’s the difference between each 8. What are the equations for the reactions that are catalyzed by i. j. GS k. GOGAT 9. 10. What is the water potential equation 11. What factors contribute to water potential 12. What pressure potential do turgid cells have 13. What does gating of aquaporins do
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Cell City Cell City A cell is like a city. They both have parts that play different roles. A cell is microscopic that has organelles‚ and a city has different services. Keeping them both running smoothly and orderly. As a result they both survive and grow. There’re a lot of different organelles in a cell that are similar to a city for example the cell membrane borders and protects the cell it’s role is letting certain things in and out of the cell in the same way a border in a city does. Another
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el A.) Cell theory : 1.) All organisms are made of cells. 2.) All existing cells are produced by other living thing. 3.) The cell is the most basic unit of life. B.) Contributors to the Cell Theory: People | Information | Hooke | He was the first to identify cells and he also named them. | Leeuwenhoek | He made better lenses so he observed cells in greater detail. | Schledien | He was the first to note that plants are made of cells. | Schwann | He concluded that all living
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In-class essay #1 Cell-phones: Distractions In today’s society‚ it’s unusual that we see people without a cell phone nowadays. We even see kids who have phones. Although they do come in handy‚ there are many disadvantages of have a cell phone that can affect our own daily life or the people around us as well. Everyone seems to talk about the advantages of having a cell phone‚ and we often forget about the disadvantages. The disadvantages of having a cell phone that I see is a everyday
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Problem Set 1 Solutions: Chapters 1 1 Cell sizes: E. coli is a cylindrical bacteria with 1 M wide and 2 M long. Liver cells are approximately spherical with a diameter of 20 M. Plant palisade cells are cylinders 20 M wide and 35 M long. A) Calculate the volumes of each cells? A) Since E.Coli is cylindrical Volume of a cylinder = r2h‚ where r is half of bacterial width/diameter = 1M/2 = 0.5M and h is the length of the bacteria
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Abstract The hypothesis states that plants respire at a faster rate if they are exposed to wind‚ opposed to no wind. This was tested by putting one plant in water in front of a fan and the other plant in water‚ but with no fan. The results showed that the plant in front of the fan transpired more. However‚ since the plant blew cold air it affected the rate of transpiration and altered the experiment. Overall‚ this experiment supports the hypothesis that wind makes plants transpire more.
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Have you ever visited any construction site in Oman? Have you wondered what type of heavy construction vehicles they are using and why? There is no doubt that transportation technology has a variety of models as there are number of choices of machines from leading manufactures‚ such as Caterpillar‚ Volvo‚ JCB‚ Hyundai‚ Doosan and etc. Selecting a type of the vehicle depends on the company needs. For some‚ highly demanding operating conditions or the need for the latest technology innovations make
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Plants Organs As was noted in the previous chapter‚ most plant cells are specialized to a greater or lesser degree‚ and arranged together in tissues. A tissue can be simple or complex depending upon whether it is composed of one or more than one type of cell. Tissues are further arranged or combined into organs that carry out life functions of the organism. Plant organs include the leaf‚ stem‚ root‚ and reproductive structures. The first three are sometimes called the vegetative
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the functional role of amacrine cells in retinal dynamics. In this thought paper I will argue that together with the bipolar and ganglion cells‚ the amacrine cells operate in a parametric system similar to the feedback and feedforward systems found in motor control. In order to determine the role of the amacrine cells they needed to determine the method of bipolar convergence and divergence in ganglion cells. When stimulated individually‚ two different bipolar cells were able to elicit distinct post
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