Topic 9: Plant Science 9.1 Plant Structure and Growth 9.1.1 Draw and label plan diagrams to show the distribution of tissues in the stem and leaf of a dicotyledonous plant. Cross-section of a stem Part of plant | Purpose | Epidermis | Surface of the stem made of a number of layers often with a waxy cuticle to reduce water loss | Cortex Tissue | Forming a cylinder of tissue around the outer edge of the stem. Often contains cells with secondary thickening in the cell walls which provides
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ISE: The Determination of Chloride Unknown: #34 I. Purpose: In experiment V‚ “ISE: The Determination of Chloride”‚ the concentration of an Unknown Chloride solution‚ and the Wt% of NaCl in a sample of celery salt‚ were both determined. To determine the concentration of an Unknown Chloride solution‚ a Calibration plot is first prepared. The Calibration plot is made by first measuring a series of known concentrations of Cl- (with the same activity of the unknown solution) and obtaining
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protection and support for the plant. The cell wall gives the plant its configuration and sifts through what goes in and out of the cell. Celery is the plant that is being used to conduct this experiment‚ because this plant is sturdy and petioles that are easy to see. Petioles are “pipes” that conduct water and nutrients in a stalk of celery. In addition‚ celery is also a stem plant and this has been a controversial topic for many people‚ due to them being called
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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. Hypothesis If a plant is exposed to wind for 24 hours‚ then it will transpire
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sticky and sprinkled with celery‚ the herb I am disgusted with the most. According to my grandmother‚ this Lomi recipe has been passed down from her grandmother. It is a recipe that has lived within our family for many years now and has remained unchanged since the olden days. However‚ I do not understand how celery is still part of the recipe. It is disturbing to think that the perfect blend of sweetness and saltiness in my grandmother’s Lomi is ruined by the bitterness of celery. Has not anyone realized
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would be no plant life‚ and without animal cells‚ there would be no humans. Purpose The purpose of this lab was to analyze and compare human cheek cells‚ onion cells‚ and various plant cells such as thin slices of carrots‚ mushrooms‚ celery and cucumber. Hypothesis If we compare the cells of onions (plant cell) and the human cheek (animal cell)‚ we believe that we will see the formation of each. We hope to see the different organelles and the layout of the cell as well as the structure
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balance 3 Dropper 12 Timer 12 Labels 36 Thermometer 12 Water bath 3 Enzyme source eg. Radishes/celery Hydrogen peroxide Range of buffer solutions pH paper Washing up liquid Disposable gloves The apparatus for this experiment lends itself to being pre-prepared in a ‘box of equipment’ – see Section 1. Advance preparation Prepare buffer solutions. Obtain fresh celery. Advance chemical preparation (a) Hydrogen peroxide (Prepares 250 ml of 1M/’12 vol’ solution) Wearing
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to plants‚ describe in detail one way of: a) measuring the rate of transpiration b) measuring the rate of photosynthesis c) separating pigments Essay : Transpiration is the loss of water vapor from land plants into the atmosphere‚ causing movement of water through the plant from the soil to the atmosphere via roots‚ shoot and leaves‚ which occurs mainly through the stomata. Factors which can affect the rate of transpiration are those such as temperature‚ humidity‚ wind‚ and light‚ and the water
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evolved morphological‚ anatomical and physiological adaptations to obtain‚ process‚ transport and store raw materials and energy under varying conditions. capture and conversion of radiant energy to chemical energy takes place in chloroplasts (chloroplasts are localized in specialized tissues) products of photosynthesis are used in respiration‚ growth‚ repair‚ maintenance‚ storage. energy consuming reactions must take place for the substances of photosynthesis to be transported around the plant
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GARNISH YOUR DRINKS -A great garnish is the crowning glory of a well-made cocktail. -A garnish should complement the cocktail in every way— the flavor of the garnish should enhance the taste of the drink the garnish’s appearance should complement the look of the drink. -Using fresh‚ top-quality ingredients is mandatory. FRUITS A. Citrus Wheels‚ Slices and Wedges Lemons‚ limes and oranges A wheel is a round cross section of fruit and a slice is a wheel cut in half. -Wheels
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