FOOD AND INDUSTRIAL MICROBIOLOGY Food spoilage‚ food infections and intoxications caused by microorganisms and methods for their detection Dr. Neeraj Dilbaghi Reader‚ Department of Bio & Nano Technology Guru Jambheshwar University of Science and Technology Hisar- 125001 and Dr (Mrs.) S. Sharma Professor‚ Department of Microbiology‚ CCS Haryana Agricultural University‚ Hisar- 125001 (Revised 25-Sep-2007) CONTENTS Introduction Food Spoilage and General Principles Underlying Spoilage of Food Intrinsic
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Lab 4 – The Cell Answer Key Procedure 4.3 Draw a picture of a single Elodea cell and label all visible structures. See the diagram in your lab manual. Without staining‚ the only structures that should have been clearly visible should have been the cell walls and the green chloroplasts. Is this cell prokaryotic or eukaryotic? ______Eukaryotic_______________________ What evidence do you have to support this claim? The presence of organelles (chloroplasts) and its large size.
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Microbiology‚ Test 3 Study Guide Chapters 14‚ 15‚ 16 and 17 Chapter 14 This chapter is about the principles of disease and epidemiology. Epidemiology – the science that studies when and where diseases occur and how they are transmitted. CDC‚ Atlanta‚ tracks and traces diseases. ONE World (the idea that it’s all in one place‚ it could happen anywhere; locally‚ states‚ large counties track the incidences and occurrences of disease)
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bacteria. Those tiny living creatures are remarkably intricate. Witnessing the breathtaking phenomena created by marine microbes strengthened my determination to further pursue my study of marine microbiology. In my first year as an undergraduate student I participated in lab work on marine microbiology. I led one project on separation and identification of pigment-containing bacteria in the Xiamen Coastal Areas‚
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INTRODUCTION Total Viable Count is a quantitative idea about the presence of microorganisms such as bacteria‚ yeast and mold in a sample. It counts the number of colonies produced by a very dilute suspension of bacteria on an agar plate and to observe the differential staining behaviour of the living bacteria. This involves counting the colonies produced by viable cells under favourable growth conditions. Some techniques needed before the viable count‚ like pour plate method‚ spread plate method
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I. INTRODUCTION Independent Study Questions 1.) What is the fundamental difference between eukaryotic and prokaryotic cells? Procaryotic cells do not contain a membrane-bound nucleus or any membrane-bound organelles. Eurkaryotic cells contain both a membrane mound nucleus and membrane-bound organelles (making them far more complex). 2.) List and describe the two domains of prokaryotic organisms. a. Bacteria- Most are a specific shape (cylindrical‚ spiral‚ or spherical). Cell
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Microbiology Final Exam Question 1 2 out of 2 points Full induction of the lactose operon requires ________. Question 2 0 out of 2 points The enzymes that help pack DNA into the cell by coiling the DNA into a tight bundle are ________. Question 3 2 out of 2 points Gene regulation can involve a protein repressor that blocks ________ from initiating transcription. Question 4 2 out of 2 points Synthesis of a repressible enzyme is inhibited by ________.
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OBSERVATIONS AND ANALYSIS Trial 1 – Logger Pro graphs Trial 2 – Logger Pro graphs Trial 3 – Logger Pro graphs Trial 4 – Logger Pro graphs Trial 5 – Logger Pro graphs Note: the analysis #1 a) and b) will only be demonstrated on the graphs of trial 1 for this report‚ trial 2-5 have approximately the same results. a) The region where the ball was being tossed but still remained in hand (x). Examine on the velocity vs. time and acceleration
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Exercise 25 Special Senses: Hearing and Equilibrium Answers to Pre-Lab Quiz (pp. 383–384) 1. three 2. a‚ auricle 3. tympanic membrane 4. d‚ stapes 5. a‚ cochlea 6. otoscope 7. b‚ Rinne 8. b‚ internal ear 9. macula/vestibule 10. c‚ involuntary trailing of eyes in one direction‚ then rapid movement in the other Answers to Activity Questions Activity 4: Conducting Laboratory Tests of Hearing (pp. 387–388) Acuity Test The threshold is indefinite. Sound Localization No‚ the sound is less easily located
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Physical Assessment Lab 120-103 1. General Survey ! Level ! Awake & Alert a. Orientation to person‚ place‚ time b. Ability to Communicate in full sentences with clear speech c. Posture: upright and erect‚ shoulders level and symmetrical d. Personal Hygiene: Clean & neat‚ no odor‚ dresses appropriately for the weather. 2. Integumentary System: a. Color: Uniform color - pink‚ tan‚ brown‚ olive. Slightly darker on exposed areas.There are normally no areas of bleeding‚ ecchymosis‚ or increased
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