Botany Exercise 1 – Microscopy A. The Compound Microscope microscope – optical instrument consisting of a system of specially ground lenses that gives sharp‚ distinct‚ and highly magnified images of minute objects. compound microscope will be used. o two lenses: eyepiece + objective lenses o inverted image base coarse adjustment knob fine adjustment knob revolving nosepiece objective lenses stage stage clips stage opening condenser iris diaphragm mirror U-shaped platform that supports
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is important as carbon-containing gases such as carbon dioxide affects and regulates the earth’s climate. It is also vital during the processes photosynthesis and respiration. It helps breakdown matter through decomposition. The Atmosphere and the Greenhouse Effect Carbon forms less than 1% of the atmosphere‚ in comprising mainly of Carbon Dioxide (CO2) and smaller amounts of Methane (CH4)‚ Carbon Monoxide (CO) and Chlorofluorocarbons (CFCs). These gases traps heat and thus called greenhouse gases
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energy released in the form of ATP o What amylase does to starch- Breaks down starch to individual glucose units o What gas is produced- CO2 o The experiment 1. How do we take advantage of the gas produced to measure fermentation rates Measure the distance between the top of the tube tail to the fluid level‚ use this distance to calculate the volume of CO2 gas produced at each timed interval (also using radius of tube tail). 2. What effect is temperature expected to have on this system
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increased‚ the average rate of photosynthesis of the leaf discs increased in a linear trend. As it is the sodium bicarbonate which decomposes into carbon dioxide necessary for photosynthesis‚ it is reasonable to consider from Graph 1 that as carbon dioxide concentration of the solution increases‚ the rate of photosynthesis will also increase in a linear trend. Carbon dioxide concentration is shown to be directly proportional to rate of photosynthesis ([CO2] ∝ rate of photosynthesis). The line of best fit
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Carbonate on the rate of photosynthesis using Cobomba plant. Aim: The aim of the experiment is to investigate the effect of the concentration of Sodium Hydrogen Carbonate (NaHCO3) on the rate of photosynthesis using a Cobomba plant. Hypothesis: As the concentration of NaHCO3 increases the rate of photosynthesis of the Cobomba plant should increase‚ as there is a greater presence of a carbon dioxide‚ obtained from the carbonate‚ which is a key reactant in photosynthesis. However it is also expected
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Iran. J. Environ. Health. Sci. Eng.‚ 2010‚ Vol. 7‚ No. 2‚ pp. 299-306 GROWTH‚ PHOTOSYNTHESIS AND RESPIRATORY RESPONSE TO COPPER IN LEMNA MINOR: A POTENTIAL USE OF DUCKWEED IN BIOMONITORING Downloaded from http://journals.tums.ac.ir/ on Thursday‚ February 23‚ 2012 * N. Khellaf‚ M. Zerdaoui Laboratory of Environmental Engineering‚ Faculty of Engineering‚ Badji Mokhtar University‚ Annaba‚ Algeria Received 3 February 2010; revised 21 Jully 2010; accepted 20 August 2010 ABSTRACT Aquatic macrophytes
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Courtney S. 4th Period SINKERS and FLOATERS Purpose:The purpose of this investigation is to provide an overview of photosynthesis and to design and conduct an experiment to test the factors that affect the rate of photosynthesis. Hypothesis:If 10 leaf discs are placed into 2 plungers and placed under a lamp the CO2 rate will speed up the process of photosynthesis. Materials: -Fluorescent lamp - Hole punch - 1 Sharpie marker -20 leaf discs -Syringes -12 mL cups Data Table Start 2 4 6 8
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as it physical alters temperature which directly affects photosynthesis‚ respiration‚ transpiration - loss of water and absorption of water and nutrients. The rate of these processes increases with an increase in temperature responses is different with different crops. The extent of growth and yield responses of plants to elevated CO2 depends on the photosynthetic pathway. Crops with C3 photosynthesis will respond markedly to increasing CO2 concentrations. Common C3 crops are small grain cereals
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possible by the differences between cellular respiration and photosynthesis. While cellular respiration occurs in all living organisms‚ photosynthesis relies on chlorophyll and is unique to plants‚ algae‚ and some bacteria. Respiration and photosynthesis are essentially the same process in reverse. During photosynthesis CO2 and H2O are converted to glucose and oxygen‚ while cellular respiration uses glucose and oxygen which are converted to CO2 and H20. Plants utilize molecules of chlorophyll which
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A. C4 and CAM plants are plants that use certain special compounds to gather carbon dioxide (CO 2 ) during photosynthesis. Using these compounds allows these plants to extract more CO 2 from a given amount of air‚ helping them prevent water loss in dry climates. CAM and C4 plants are similar with the exception that CAM only opens up the stomata’s at night. They both photosynthesis at the same rate for the majority at a time and are tolerate to heat. Plus C4 closes their stomata’s during hot
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