Photosynthesis is the process which plants use to change Carbon Dioxide and water into sugar by using the sunlight. Photosynthesis usually take place in plants cell such as chloroplast. In this lab experiment‚ we used sodium bicarbonate to influence photosynthesis. Sodium bicarbonate is a formula of NaHCO3 (baking soda). In this lab experiment‚ we observed photosynthesis in spinach leave and investigated the effect of sodium bicarbonate on photosynthesis. The experiment was to determine how many
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Research Question: What are the percent concentrations of Fe3+ ions by mass in fresh parsley and spinach leaves? Scientific Concept Colorimeter measures the absorbance of light by the chemical substances at a certain wavelength. By measuring the absorbance‚ the concentration of a chemical substance can be determined. For the calibration of the colorimeter‚ different concentrations of a standard solution and a control (distilled water) are prepared in cuvettes. These cuvettes are put into the colorimeter
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The effect of sunlight exposure on stomatal density on periwinkle (Vinca minor) leaves Laura Encarnacion‚ Matthew Tallent‚ and Harsimrat Sidhu 10/08/2015 Abstract Many environmental factors can contribute to a leaf’s stomatal density. The purpose of this experiment is to see how different light exposure in a leaf can affect the stomatal density of the leaf. The stomata allow the plant to regulate the intake and outtake of water and other molecules in order to maintain the plants temperature. Vinca
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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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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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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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A DETAILED LESSON PLAN IN SCIENCE 1 I. Objectives At the end of the lesson the students should be able to: 1. Identify the different parts of a green plant like roots‚ stems‚ and leaves. 2. Describe how things feel and appear. 3. Draw or paint a picture inspired by green plants 4. Demonstrate how to take care of plants II. Subject Matter Subject: Science Grade Level: 1 Lesson 1: Looking at Green Plants III. Materials * A large pot plant * A number of
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\s Household chemicals such as Windex‚ a glass cleaner‚ are known to be harmful to humans but if they affect plant growth could be an interesting experiment. Our experiment consisted of different levels of Windex mixed with water and given to Brassica Rapa plants in order to grow. Are results showed that Windex barely had an effect on the plant growth and the plants showed steady increase in growth. In conclusion‚ our experiment did not assure that Windex add a boost in plant growth but we
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The effect of nutrient deficiency and toxicity in plants Nutrient Micronutrient Nitrogen (N) Deficiency effect Toxicity effect Leaves become dark green and susceptible to drought‚ pests and diseases as well as failed yield for fruits and seed crops. Limit the uptake of other nutrient‚ which is magnesium or potassium. Older leaves at the bottom of plant will start to become yellowish (chlorosis) while the rest of the plant’s leaves will be light green. Calcium (Ca) Newer leaves at the top of the
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Effects of Angelica keiskei (Ashitaba) Leaves on the Salivary Bacterial Count and Salivary Flow Baldemor‚ Levee M. Dalida‚ Racy Detaro‚ Isabella Cherr K. Espineli‚ Felipe Rafael B. Perdido‚ Lanz Gerard O. Sta. Maria‚ Danica C. Teodosio‚ Kim Crizandra D. Zantua‚ Jazelle Christine G. Introduction Angelica keiskei (Ashitaba) is a lush green plant. The name “Ashitaba” means “tomorrow’s leaf” aptly termed due to its ability to reproduce green stem
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