Bioenergetics Photosynthesis & Respiration Laboratory Report Exercise 6 PBIO101 ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Gina Dedeles Minda Dimaano-Kho Group 5 Felicita‚ Haniel Paulo‚ Gisselle Mildred V. Aniseta‚ Carmelus*Absent but present
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OF CONTENTS S no Topic Page number 1 Introduction 1 2 Objective 4 3 Scope and limitations 5 4 Theory 6 5 Experiment 11 6 Procedure 13 7 Observations 17 8 Result 18 9 Bibliography 19 INTRODUCTION Chlorophyll is a green photosynthetic pigment found in chloroplasts of organisms like cyanobacteria‚ algae and plants. Its name is derived from the Greek words chloros‚ meaning ‘green’ and phyllon meaning ‘leaf’. First isolated
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Plant pigments Access the following website: http://www.phschool.com/science/biology_place/labbench/lab4/intro.html (you will need to "cut and paste" this into your browser) You should see the Plant Pigments & Photosynthesis lab. Under the figure of the notebook‚ click the "next" button. Read "Key Concepts I: Plant Chromatography" Then click "next" and read "Design of Experiment I" Then click "a closer look". Read "Depositing the Pigment"‚ then click "next". View "Pigment Separation"
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to take place. These steps are light-independent reactions‚ and light dependent reactions. The occurrences of Light-independent reactions happen in the STROMA of the chloroplasts. The substances consumed during this reaction are ATP and NADPH. The occurrences of light-dependent reactions happen within the THYLAKOIDS of the chloroplasts. The substances consumed during this reaction is light‚ which is absorbed by chlorophyll molecules‚ which then produces hydrogen ions‚ electrons‚ oxygen gas‚ ATP and
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1. Light Dependent Stage/ photochemical reaction/ light reactions: Word Equation: Water ( Hydrogen ions + Oxygen ((: light + chlorophyll) Site: On the Thylakoid membrane of the chloroplast Major events: • Light absorption o Chlorophyll in the thylakoids absorbs light. The energy absorbed is used for photolysis (splitting of water molecules). • Photolysis of water (Photodissociation) o The
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providing the source of energy that drives all their metabolic processes. In the process of photosynthesis‚ the carbohydrates are synthesized in CO2 and H2O in the presence of sunlight and chlorophyll and O2 is released (Ruben and Kamen‚ 1957). The chloroplasts of plants capture light energy that has travelled 160 million kilometers from the sun and convert it to chemical energy stored in sugar and other organic molecules (Campbell and Reece‚ 2002). This process is directly dependent on the supply
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NOTES AND COMMENT 343 DETERMINATION OF CHLOROPHYLL AND PHEO-PIGMENTS : SPECTROPHOTOMETRIC EQUATIONS~ It has been shown that chlorophyll degradation products may at times constitute a significant fraction of the total green pigments present in seawater (Yentsch and Menzel 1963; Lorenzen 1965; Yentsch 1965). These degraded forms‚ or inactive chlorophyll‚ absorb light in the red part of the spectrum; if they are present in concentrations significant relative to chlorophyll a‚ a serious error
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experiment was for each student to use column chromatography to separate plant pigments from spinach leaves. Some goals and objectives were to observe the effect of the increasing polar eluent fractions‚ to analyze the different fractions collected‚ and to correlate the structure of the components with polarity and behavior on a chromatographic column. Background The best method for separating mixtures in organic chemistry is chromatography. Chromatography is the separated of a mixture of two or more
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Summary for Quiz Monday‚ May 30‚ 2005 12:13 AM Title Identification of Some Macromolecules Gist of Experiment • Use different tests to check for the existence of macromolecules in various substances o Iodine test checks for starch and/or glycogen o Benedict’s test checks for reducing sugars o Biuret test checks for protein Notes on Underlying Theory Introduction • The most abundant elements in living material are: o Carbon
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Group 2 LS212 Science 8 Members: Cabatay‚ Christian George Castro‚ Aaron Kleber Dimaculangan‚ Martin Carandang‚ Morena Aura Co‚ Romina Rose Cornejo‚ Arianne Kayla Ingridients with specific amount | Nutritional value | Use / Purposes of the ingridients | Cell Processes involved | Remarks | 1 cup Vinegar | Calcium‚ magnesium‚ phosphorus and potassium. | Vinegar is an acid liquid obtained from an alcoholic liquid‚ as cider‚ by oxidation
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