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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acid rain Acid rain is rain or any other form of precipitation that is unusually acidic. It has harmful effects on plants‚ aquatic animals‚ and infrastructure. Acid rain is mostly caused by human emissions of sulfur and nitrogen compounds which react in the atmosphere to produce acids. In recent years‚ many governments have introduced laws to reduce these emissions. Emissions from volcanoes and those from biological processes that occur on the land‚ in wetlands‚ and in the oceans account for the
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Research Project: The Effect of Calcium on Plant Growth Problem Statement What affect do various amounts (0 mg‚ 300 mg‚ 600 mg) of Calcium added to Vigna unguiculata (black eyed pea plants) once a week have on the overall growth (height‚ number of leaves‚ number of pods) over a 30 day period of time? Research Hypothesis If various amounts (0 mg‚ 300 mg‚ 600 mg) of Calcium are added to Vigna unguiculata (black eyed pea plants) once a week‚ then those plants receiving 300 mg of Calcium will have a
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Christopher‚ James‚Leo -Work Division Everyone will plant the green bean and make a deep investigation about a 10 days experiment. -Jasper have divide us in to different jobs and give us the method to achieve our aims and goals TimeLine 28/11 10days observation-> 10/12 Collect data-> 11/12 Doing report-> 13/12 Deadline 1. Objective We will strive to discover the difference of the plant which is using different type water to plant. Besides‚ we will also discover the reason why the difference
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Describe how the uses of plant fibres and starch may contribute to sustainability How can plant fibres be used? First of all the plant fibres have to be extracted from the plant itself. The process of extraction often used is called retting. Retting involves using water or micro-organisms to dissolve or rot away the cellular tissues surrounding the bast-fibre bundles. Afterwards the fibres are obtained; usually they extract very long sclerenchyma cells and xylem tissue because of their good
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Tyler Philbrook May 7‚ 2013 Biological Science 2 Plymouth State University Effects of Temperature on the Survival of Duckweed Introduction Common duckweed is a plant found floating in compact colonies in ponds‚ marshes‚ lakes‚ and slow moving streams. Duckweed is a very tiny pale green‚ seed bearing plant (Wang and Messing 2012). Duckweed consists of 1 to 3 fronds‚ or an oval shaped leave–like structure (Wedge and Burris 1982). These fronds grow no bigger than 10 millimeters and
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EXERCISE 1: A BEGINNER’S GUIDE TO THE STUDY OF PLANT STRUCTURE Adonay‚ Jessa and Velos‚ Mary Angelie Biology Program‚ Sciences Cluster University of the Philippines Cebu Lahug‚ Cebu City‚ Philippines ABSTRACT Plants have essential requirements to survive like all other living being. Roots‚ stems‚ leaves‚ and flower serve to help them acquire or provide for these requirements. Plants exposed to different climates pose different arrangement in the structures’ tissues. A closer look on its
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What pH Level Causes a Plant to Grow Best Alexis Chavez‚ Heather Nutt‚ Nguyen Phan Introduction We knew that water is normally stated as the best form of liquid to make sure plants grow as best as they can‚ but we wanted to know if causing the water to be more basic or more acidic would affect how the plant grew. Our hypothesis was that if the plant is treated with a pH of 12 then treated with another pH. Materials The materials used were three identical plants‚ that each had 4 sections that were
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Heuvelink‚ E.‚ 1987. Influence of light on the growth of young tomato‚ cucumber and sweet pepper plants in the greenhouse: effects on relative growth rate‚ net assimilation rate and leaf area ratio. Scientia Hortic.‚ 31: 161-174. Tomato‚ cucumber and sweet pepper were sown in a greenhouse at regular intervals throughout the year. A relationship between the relative growth rate (RGR) of these young plants and the mean daily light integral ( PAR incoming per unit ground area) could be calculated for
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THE COMPARATIVE STUDY OF THE EFFECT OF ROTTEN FRUITS AND ROTTEN VEGETABLES TO THE GROWTH OF TOMATO PLANT MESIAS‚ JEREMY SAMUEL SANTOS‚ FLORENCIO JUSTIN ABELLO‚ KYLE LIYAG‚ HANNAH TRIBIANA‚ PETER MICU‚ KELCY Science II Investigative Project Submitted to: Dr. Claribelle J. Bautista‚ Ph.D. Golden Faith Academy Montevista Heights Subdivision Taytay‚ Rizal TABLE OF CONTENTS CHAPTER 1 :INTRODUCTION………………………………………………………………..1 Background of the study……………………………………………………
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