Chirality-Isolation of Limonene from Citrus Fruits Post-lab #5 Elena Manakhova Lab group: Michele, Charlyne G. CHM2210L Introduction/Background. The roots of organic chemistry are embedded in the substances derived from natural sources. The eventual realization that these natural products could also be synthesized from nonliving materials led to the overthrow of the vital force theory and the creation of the discipline called “organic” chemistry. Essential oils make up a large group of organic compounds obtained from plants. These oils are often characterized by very distinct odors, and are dependent on a certain degree of stereochemistry found in a particular molecule.
Name and describe the function of the five plant hormone groups discussed in your text. 5. Describe sexual and asexual reproduction in flowering plants. Be specific in regards to flowering plants. 1) Monocots are shorts for “Monocotyledons” which means plants whose embryo has one cotyledon; whereas, Eudicots (Eudicotyledons) carry embryo with 2 cotyledons.
SUGAR CANE AND BEGONIAS The main sources for the references gathered in this paper are from the book The Botany of Desire by Michel Pollen. The book focuses on the interactions between people and plants. I will explain how the begonia and sugar cane have changed over the years. How our interactions with these plants have changed us and how we changed the plants. "A Brief History of Sugar."
Chapter 37 – Communities and Ecosystems * Know the interspecific interactions that occur with: * Competition * Mutualism * Predation * Herbivory * Parasitism …and know examples of each. * Know the trophic levels in a food chain and examples of each. * Know how disturbance can lead to ecological succession. Know the general patterns of plant regrowth after
Because the tea bag original weight was 55mg or .055g, the weight percentage recovery of this experiment was 14.7%. Introduction Caffeine composes 5% of the leaf material weight in pure tea leaves. It is classified as an alkaloid, meaning that it is a naturally occurring compound composed mainly of Nitrogen atoms and possesses the properties of an amine base. Amine bases are a common product of Nitrogen metabolism in plants. Caffeine more specifically belongs to the Xanthine family or alkaloids.
This is important in communities near the ocean. In this lab we will also be reinforcing scientific method skills. This is covered in Section 1.2 of your text and page 19 for summary. You may need to review concepts like hypothesis, observation, conclusion, experimental design, controlled experiment (control and experimental groups), independent variable and dependent variable. We will also look at your ability to gather data and reporting on data.
Cellular Structure and Pathogenicity Student’s name: Institution: Instructor: Subject: Cellular structure and Pathogenicity A pathogen is a micro organism that is capable of causing ailment to insect, animal or plant (Staskawicz etal, 1987). The ability of the pathogen to create and disease that affects living thing is called pathogenicity. The pathogenicity of pathogen is majorly related to the cellular structure of bacteria. The cellular structure is the key determinant on the adaptation which the bacteria take in order to survive in the host living thing. Basically, there are three major forms of shape that the cells of bacterial can take form in.
Investigation of the affect of salinity on Osmosis within Solanum tuberosum | Year 10 Biology | \[Pick the date] | TABLE OF CONTENTS TABLE OF CONTENTS page number 1 DESIGN 1.1 Defining the problem 3-4 * Focus / research question * Hypothesis * Background information / theory * Investigation Variables 1.2 Controlling Variables 4 * Treatment of Controlled Variables * Control Experiment 1.3 Experimental Method 4 * Materials * Risk Assessment * Method * Experimental Setup * Modifications to Experiment 2 DATA COLLECTION and PROCESSING 5 2.1 Recording Raw Data 5 * Quantitative Data * Qualitative Data 2.2 Processing Raw Data 5 * Statistical Processing - calculations 2.3 Presenting Processed Data 5-6 * Result (s) table (s) * Graph (s) 3 CONCLUSION and EVALUATION 6-7 3.1 Conclusion * Conclusion statement * Conclusion explanation 3.2 Evaluation Procedures 7 * Reliability * Limitations / Weaknesses / errors in Laboratory Investigation * Significance of weaknesses on experimental results 3.3 Improving the Investigation 7 * Modifications to experiment BIBLIOGRAPHY 8 APPENDIX A Risk Assessment and Laboratory Order Form APPENDIX B Diagram set up APPENDIX C Salt build up on the rim of measuring beakers 1. Design 2.1 Focus Question: What is the effect of different concentrations of salt solutions surrounding potato cells, Solanum tuberosum have on the osmosis of such cells. Hypothesis: If a 1 cm cube of Solanum tuberosum is covered with a high 40% concentration of sodium solution then the mass of Solanum tuberosum will decrease due to osmosis. However, when covered with distilled
Avocado Trade and Production [pic] [pic] Pictures copyright courtesy of California Avocado Commission (2010) By Matt Castle Index 1. Avocado an introduction 3 2. Trade of Avocados 5 2.1 U.S. SPS barriers to avocado free trade 6 2.2 Emerging Avocado producers 7 3. Cultivation 8 3.1 Propagation 8 3.2 Soil types 8 3.3 Other Environment Factors 9 3.4 Planting 9 3.5 Planting distance for avocado/orchard design 10 3.6 Irrigation 11 3.7 Fertilisation 11 1. Avocado an introduction The tree from which the commercial avocado fruit (technically a berry due to the fact it develops from a single ovary and has the seed embedded in the fruit), come from the avocado tree Persea americana Mill which originates from Central America.
The independent was chosen based off my research and literature review in which the hypothesis states those who recycle are more concerned with the environment. Furthermore, I added other variables that could possibly affect the outcome of the independent variable, these included income level,