Histology ......................., Exams of Histology

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BMED 222 EGERTON UNIVERSITY UNIVERSITY EXAMINATIONS REGULAR-NJORO CAMPUS FIRST SEMESTER RESIT EXAMINATION, 2018/2019 ACADEMIC YEAR THIRD YEAR EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN BIOMEDICAL SCIENCE AND TECHNOLOGY BMED 222: MICROBIAL PHYSIOLOGY AND GENETICS STREAM: BSC BMED TIME: 2 HRS EXAMINATION SESSION: AUGUST YEAR: 2019 INSTRUCTIONS: (0) Do not write on the question paper (ii) Show your working clearly (iii) Answer ALL Questions in Section A (iv) Answer ALL Questions in Section B (v) Use illustrations when necessary SECTION A (30 MARKS) Question One Describe the genome in prokaryote. (5 marks) Question Two Describe the differences in the features of flagella in eukaryotic cells and in prokaryotic cells (5 marks) i ene Serene nem “Transforming Lives through Quality Education” Page lof2 BMED 222 Question Three State and justify the differences between growth results in coenocytic microorganisms and in the other unicellular organisms. (5 marks) Question Four Describe assembly of the Z ring and explain why the assembly is a critical step in septation (5 marks) Question Five Using examples. explain why bacteria can be affected by changes in the osmotic concentration of their surroundings. (5 marks) Question Six Describe how generation time is calculated for bacterial cells growing exponentially by binary fission. (5 marks) SECTION B (40 MARKS) Question Seven Using the lac operon as an example, explain Catabolite Repression and Enzyme Induction as means of regulation and control of metabolism in bacteria. (10 marks) Question Fight Describe the process of bacterial cell cycle. (10 marks) Question Nine Describe the process of bacterial transduction. (10 marks) Question Ten Explain the effec of temperature on bacterial growth. (10 marks) FOE ICICI AC I IOI I Seok sei i “Transforming Lives through Quality Education” Page 2 of 2