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AS/OCT2010/MIC455
UNIVERSITI TEKNOLOGI MARA FINAL EXAMINATION
COURSE COURSE CODE EXAMINATION TIME
GENERAL MICROBIOLOGY MIC455 OCTOBER 2010 3 HOURS
INSTRUCTIONS TO CANDIDATES 1. 2. This paper consists of ten (10) questions. Answer ALL questions in the Answer Booklet. Start each answer on a new page. Do not bring any material into the examination room unless permission is given by the invigilator. Please check to make sure that this examination pack consists of: i) ii) the Question Paper an Answer Booklet - provided by the Faculty
DO NOT TURN THIS PAGE UNTIL YOU ARE TOLD TO DO SO
This examination paper consists of 5 printed pages
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(4 marks) What is the use of negative staining? (2 marks) c) Most genera of bacteria will lose the red carbolfuchsin stain when decolourized using acid alcohol but those that are "acid-fast" retain the bright red colour in ZiehlNielsen Acid-Fast stain. What could be the explanation for this colour differences. (3 marks) You are given a bacterial sample and your task is to find out whether the bacteria are motile or not. Suggest three (3) lab procedures that enable you to test on the bacterial sample. (3 marks)
b)
d)
QUESTION 8 a) List down three (3) advantages of transformation. (3 marks) b) Describe the mechanism of conjugation with the aid of a labeled diagram. (6 marks) c) What is the main difference between conjugation and transformation? (2 marks)
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AS/OCT 2010/MIC455
QUESTION 9 Discuss in detail the importance of fungi in different fields : agriculture, industrial and medicine. (10 marks)
QUESTION 10 Figure 1 demonstrates the patterns of oxygen used by different organisms incubated for 24 hours in tubes of a nutrient broth.
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Identify the possible group of organism that accumulate in tubes A to E as
A comprehensive exam response submitted in partial fulfillment of the requirements for the degree of
Directions: Use your graded tests and Unit 4 & 5 notes to answer the following questions. You can find the answers for #’s 1 – 62 on Exam 1 (3rd Nine Weeks Exam) and #’s 63 – 100 on your unit notes. Write your answers in the space provided, below each question.
Three examinations will be administered. The exams will consist of multiple choice questions and problems. Problems will be similar to those covered in class or those given as homework assignments.
- Complete all of the details required on the front page of the examination booklet. - Make sure that you note the SIX(6) questions attempted on the front of your examination booklet - If Seven questions are attempted, the first SIX(6) will be marked. - You may use a non-programmable calculator - Graph paper will be provided. - Answers are to be written in ink. Pencils are permitted for graphing purposes. - The
Review the sample syllabus and sample rubric under the questions below. Then, provide answers underneath the following questions:
and types of questions) will be presented at the start of the class prior to the exam. The
On exam day, students will have to be prepared with a comprehensive knowledge of their chosen topics. Faculty members will ask their chosen questions of the student and, with only a whiteboard or computer projector in front of them, students will have to orally work through the program and present their answer to the panel. If the student presents a satisfactory answer to each question, they pass the
1. The paper fulfills the purpose of the assignment as described in the syllabus and in this document (up to 10 points)
To perform this test, a tube of broth rich with glucose is acquired. In this tube is phenol red, a pH indicator. Initially, the tube appeared pink in color, indicating a normal pH level. Next, a sample of unknown #44 is introduced into this medium using the aseptic technique, and this is allowed to sit for several days. If the organism is able to ferment glucose, the pH in the medium would decrease and cause the phenol red to exhibit a yellow color. In addition to the straw color, gas can also be produced and trapped inside the Durham tube placed in the medium. This production of acid and gas is a direct result of the fermentation of glucose, as seen with unknown
Note to students: This is a closed-book exam, containing 3 questions, worth 30 marks in total. Apart from sundry writing materials (pens, pencils and the like), no examination aids are permitted
The Chemistry of Life Time: 1 hour (plus 24 hours preparation time) Materials: Variety of household substances, plastic wrap, water, cutting utensil Lab 6: Diffusion Time: 1.5 hours Materials: Water, watch or timer , viscous liquid from cupboard Lab 7: Osmosis Time: 1 hour (plus 3 hours for observation) Materials: Water, watch or timer, several types of potatoes, cutting utensil, paper towel Lab 8: Respiration Time: 1 hour (plus 2 hours preparation time) Materials: Water, watch or timer, paper towel Lab 9: Enzymes Time: 1 hour (plus 2 hours preparation time) Materials: Water, watch or timer, string, ice, hot water, paper towel, ginger root, at least 2 other food sources (potato, apple, etc.) The Cell: Lab 10: Cell Structure & Function Time: 1 hour (plus 24 hours for observation) Materials: Water, square plastic
Fungi are fascinating, yet terrifying organisms. The text does a good job of describing how they operate (through spores) and long does it affect the plant in the short-term (rust that causes the
When you feel confident that you have mastered the material in this study unit, complete the following examination. Then submit only your answers to the school for grading, using one of the examination answer options described in your “Test Materials” envelope. Send your answers for this examination as soon as you complete it. Do not wait until another examination is ready. Questions 1–20: Select the one best answer to each question. 1. Which of the qualities required for a good
Candidates answer on the Question paper No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a soft pencil for any diagrams, graphs, tables or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid. DO NOT WRITE IN ANY BARCODES. Answer all questions. At the end of the examination, fasten all your work securely together. The number of marks
Candidates for the above examination are requested to be in attendance at the place of