Theodor Wilhelm Engelmann was a German microbiologist whose 1882 experiment measured the effects of different colors of light on photosynthetic activity and showed that the conversion of light energy to chemical energy took place in the chloroplast. In 1881‚ he observed the movement of bacteria towards the chloroplasts in a strand of “Spirogyra” algae. Engelmann hypothesized that the bacteria were moving in response to oxygen generated by the photo synthetically active chloroplasts in the algae.
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Ch. 1 Prokaryotes = bacteria ‚ archaea Eukaryotes = Fungi‚ protozoa ‚ algae (Growth:: Mitosis有絲分裂) Bacterial cell → Bacillus(rodlike) ‚ cocus (spherical)‚ spiral (curved) *P.S. 有時會star-shaped or square → 出現既形式: pairs‚ chains‚ clusters cell walls of bacteria → peptidoglycan (carbohydrate & protein complex) cell walls of plant and algal cell → cellulose Growth::Binary fission = bacteria reproduce by dividing into two equal cells bacteria 吸收nutrients from dead / living organisms/ photosynthesis
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The Effectiveness of Antimicrobial Agents Bacteria: Clearasil and Proactive Veronica Hillgren 11/16/12 FRI AM Question/ Hypothesis The purpose of my experiment is to find and compare the efficiency of Proactive™ and Clearasil™ acne products on certain bacteria. For myself‚ Clearasil™ works better than Proactive™ does when exposed to my pores‚ which are infested with bacteria. However‚ Proactive™ is widely known and has a large amount
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KAROT OR ASIATIC BITTER YAM (Dioscorea hispida dennst) AS A RAT KILLER CHAPTER I Introduction Health is wealth. Food plays very vital role in maintaining proper health. If we don’t have it‚ we will surely die. In our country‚ Philippines‚ we cannot finish a meal without having the food called rice. Not only in Philippines but rice is also a global staple food. The country is the 8th largest rice producer in the world‚ accounting for 2.8% of global rice production. Rice is an
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PROPOSED TOPIC OF RESEARCH HR’s role in supporting gender diversity attheworkplaceand enhancing its impact on organisational effectiveness. OBJECTIVE OF PROPOSED RESEARCH This project aims to discuss the role of gender diversity in the workplace and how companies can profit from greater amalgamation of the workforce while respecting individual needs. The study will assess the current and future trends in diversity management‚ as perceived by HR professionals‚ by studying the diversity initiatives
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Human Resources Management Research Paper Topics 1. HR Management in Small Organizations 2. HR Management in the 21st Century: Challenges for the Future 3. The Impact of Information Technology on HR Management: Opportunities and Challenges 4. Demographics of the Workforce: Analysis of Trends and their Implications for HR 5. HR as a Strategic Business Partner 6. HRMS: Purposes and Uses 7. International Outsourcing: When Does It Make "Cents?" 8. HR Ethics: An Examination of
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MATERIAL SAFETY DATA SHEET (MSDS) FOR PORTLAND CEMENT (Complies with OSHA and MSHA Hazard Communication Standards‚ 29 CFR 1910.1200and 30 CFR Part 47) CEMEX‚ INC. CEMEX CALIFORNIA CEMENT LLC VICTORVILLE CEMENT PLANT 16888 NORTH "E" STREET VICTORVILLE‚ CALIFORNIA 92394-2999 Section 1 - IDENTIFICATION Supplier/Manufacturer Emergency Contact Information CEMEX‚ Inc. CEMEX California Cement LLC Victorville Cement Plant 16888 North "E" Street Victorville‚ California 92394-2999
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Review Questions 1. Which type of S. pneumoniae strain is the most virulent‚ encapsulated or unencapsulated? 2. What allows S. pneumoniae to adhere to cell walls‚ phosphorylcholine or polysaccharide? 3. Which infections are most commonly caused by S. pneumoniae‚ arthritis & peritonitis or meningitis & bacteremia? both 4. What can society do to help protect itself from antimicrobial resistance‚ increase or decrease antimicrobial usage? Decrease usage 1. Staphylococcus aureus‚
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performance of the employees are important to increase the effectiveness of the organization in the market. The performance of the employees in their tasks depends on the demanded responsibilities of the organization. However‚ according from the past research studies that focuses in the organization‚ the rewards and other incentives given to the employees can increase the productivity and effectiveness in the performance of the people. Background and Problem Statement The organizational aim of the organization
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* Microbiology: Study of microorganisms Most microorganisms are pathogenicFalse The majority of bacteria are harmless True Total number of bacterial species: about 10 million to a billion What is a microorganism? An organism or virus too small to be seen without a microscope. (Smaller than 0.5 mm) Ex: Bacteria‚ Fungi‚ Protozoa‚ Algae‚ and Viruses Microbiom: collection of microbes Human cells vs. Microbial cells = 1:10 Which statement about Michaelangelo is not correct? A. He was
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