Essays on Chlorophyll

Summary Of Proposed Research

Global drought not only affects the world agriculture and economics, but interactively affects the phenotypic trait of plants across a different diversity gradient. Nevertheless, plants are able to adapt themselves to the drought environment by changing their phenotypic trait. From previous research at Jena Drought Experiment, in Germany, the results show that diversity not only has the capability to increase community’s resistance to drought, but also to increase community’s recovery ability after drought. On the other hand, the results show that the drought environment makes a strong selection on both, the plant phylogeny and functional trait. Yet, ...

1. How does the basic leaf structure suit its function? A leaf is a plant organ that is very crucial for a plant survival. It has a structure that makes it suitable to perform its functions. A leaf normally has a larger surface area so that they are able to absorb sunlight more easily. Sunlight is required by plants for the food making process. A leaf is normally very thin. This allows the carbon dioxide to travel and diffuse in a short distance. Also, oxygen which is usually a by-product, diffuse out easily. A leaf has a green coloring ...

Cellular respiration equation:

C6H12O6+6O2→6CO2+6H2O+38ATP. Glucose+Oxygen→Carbon dioxide+Water+38ATP.

Photosynthesis equation:

6CO2+6H2O+sunlight, nutrients→C6H12O6+6O2. Carbon dioxide+Water→Glucose+Oxygen. Respiration and photosynthesis are opposite processes. It means that products of cellular respiration are reactants of photosynthesis and vice versa: the products of photosynthesis are reactants for cellular respiration. It is known that plants are autotrophs. Thus, they have to realize cellular respiration because they need energy for their existence. Due to cellular respiration, they receive energy, which is used to make organic compounds (glucose) and oxygen during photosynthesis. From the other side, people are heterotrophs. They ...

Aim: The aim of this project is to determine the influence of sunlight and shade on the characteristic of leaf morphology. Background: The gradient in light received by the leaves, compel them to adapt for optimum growth in a particular environment. This adaptation takes place gradually, with changes in certain morphological features. These morphological changes that take place with time and space in which the plant grows is defined as succession and has a role to play in evolution. Certain environmental factors like shade and sunlight can present as a slightly adverse condition that affect plant growth. In order ...

Abstract

Color and texture are important attributes related to vegetable quality. The objective of this study was to determine the changes in quality characteristics, caused by cooking time, and pH (alkali and acid addition) in some vegetables. Four different vegetables — carrots, spinach, red cabbage and cauliflower — were analyzed for changes in color and texture associated to time of boiling, the effect of alkali (baking soda), and the effect of acid (vinegar and cream of tartar). Samples of each vegetable were prepared and treated for five minutes. Color change was measured visually and using the L*a*b* technique. Color and ...

Introduction

Cellular respiration and photosynthesis are vital reactions in living organisms since without the two; there would be no life on earth. Cellular respiration involves a set of metabolic reactions that take place in cells of living organisms thereby converting nutrients like sugar into adenosine triphosphate (ATP) (Osterhoudt & Barhydt, 2010). On the other hand, photosynthesis involves the conversion of carbon dioxide into organic compounds by the photoautotroph in the presence of sunlight. Most animals attain their energy requirements through cellular respiration while on the other hand; photosynthesis is performed by most plants that can make their food. These two reactions ...

Introduction

There are environmental chemical processes which require light to react. These processes are called photochemical reactions. Photochemical reaction is commonly initiated due to the absorption of solar energy or light. When molecules absorb energy in the form of light, the atoms are converted in a transient excited state (Larson & Weber, 1994). This transition state or excited has completely different physical and chemical properties with the initial state of the molecule. The excited states also have more tendencies to react since they are considered stronger acids and stronger reductants that the initial state of the molecule. The excited state of ...