The purpose of this lab was to investigate whether veins affect photosynthesis rate. It was predicted that having veins would decrease the rate because chloroplast might be less frequent due to the vascular tissue. For this experiment‚ 4 groups were set up: veins and no veins in CO2 solution‚ and veins and no veins in distilled water‚ the distilled water groups served as controls. These 4 groups were placed under a light bulb in order for photosynthesis to occur. No disks experience movement in the
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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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SC235 General Biology House Plant Experiment Do Water Solutions Effect Growth? Hanna Gallant For this assignment I have chosen to look at the Salvia plant. I like house plants better because it brightens up my home and I feel they require somewhat less work than my outside garden does and I can more closely monitor them for pests‚ disease and other issues that may arise. I chose the Salvia plant because it is a fairly common house plant that is easy to care for and produces wonderful blooms
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BIOLOGY DCN PHOTOSYNTHESIS LAB # 6 Effect of varying coloured filters on the photosynthetic rate of spinach chloroplasts The data below is just representative of what trends and relationships you were supposed to see. Numbers can vary. Absorbance at 620 nm for each treatment DCPIP + chloroplasts t=0 min. 0.93 0.945 0.905 0.915 t=3 min. 0.95 0.731 0.83 0.816 change in A620 -0.02 0.214 0.075 0.099 t=0 min. t=3 min. change in A620 t=0 min. t=3 min. change
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I. Problem How do dry Papaya leaves affect the growth of Tomato plants? II. Title Utilizing dried Papaya leaves as mulch for Tomato plants III. Rationale Dried papaya leaves make an ideal organic mulch‚ providing warmth and nutrition to the tomato plant‚ while also helping to prevent the growth of unwanted weeds and proliferation of diseases‚ as well as protecting them from soil borne pests. The best mulches‚ such as mulch created with dried papaya leaves‚ are used to add height and width
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For my science experiment I will be testing if phototropism affects pea plants. The purpose of this is to see how much the growth of the plant is affected by sunlight. Many years ago the scientist Charles Darwin discovered what today we called phototropism. I intend to create my own small experiment except this time I will be using artificial light instead of natural light (the sun). The definition of tropism is "a growth movement whose direction is determined by the direction from which the stimulus
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Introduction Photosynthesis takes place in the chloroplast and is the use of sunlight energy for cell processes. It happens through a number of chemical reactions and the transfer of electrons. It is used as the source of energy (ATP) for plants. The reaction equation for photosynthesis is H2O + CO2 + (Light) (CH2O)N + CO2 In the Hill reaction‚ Robert Hill showed how chloroplasts in water can still function if there is light and an electron acceptor to release oxygen. He proved that the oxygen
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MGC 2018 Practical write up Name: Madison Bielby Student number: a1740189 Word Count: TITLE A study using an oxygen electrode to determine the effects of varying light intensity on the rate of photosynthesis of spinach‚ Spinacia oleracea. INTRODUCTION Photosynthesis is a two-stage process‚ each with multiple reactions‚ which must work concurrently with each other in order for plant survival. The first stage of photosynthesis is the light dependent reactions which occur in the thylakoids followed
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Hydroponics: Growing Without Soil The science of growing plants without soil has been known and used for more than one-hundred years. The word “hydroponics”‚ however‚ is comparatively new. Dr. W.E. Gericke is usually given credit for coining the word‚ which translated from Greek‚ means “working water”. The famous hanging gardens of Babylon were probably on of the first attempts to grow plants hydroponically. The work of Dr. Greicke in the 1920’s and 1930’s
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In the experiment‚ the effect of light intensity on the rate of photosynthesis will be tested. Photosynthesis is the process in which autotrophic plants create their own food (energy) from sunlight. Photosynthesis involves three ‘ingredients’ or reactants‚ carbon dioxide‚ water‚ and light energy (sunlight). Carbon dioxide and sunlight come in through a leaf’s stomata which are tiny holes‚ and water is absorbed through their roots. When all of these reactants are combined in a plant’s chloroplasts
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