Test Paper - Microbial Ecology - Delhi University - Bachelor of Science(H) - Microbiology - Second Year 2004, Study notes of Microbiology

Download Test Paper - Microbial Ecology - Delhi University - Bachelor of Science(H) - Microbiology - Second Year 2004 and more Study notes Microbiology in PDF only on Docsity! {This question paper contains 3 printed pages J $863 Yeur Rall No B.Sc. (Hons.) / 11 I MICROBIOLOGY — Paper IX (MICROBIAL ECOLOGY) . , (Admisstons of 2004 & onwards) . Time 3 Hours Maximum Marks 60 + (Write your Roll No on the top immediately an receipt of this question paper } Atiempt Five questions in all, selecting at least two questions from each Section Attempt Section A and B on separate answer-hooks ‘A questions carry equal marks SECTION~ A 1 (a) Why is Winogradsky known as the “Father of Sotl Microbiology”? - (3) (b) How would you distinguish between a community and a population ? Q@) (c) Compare autccology and synecology 3) (d) What do you understand by pre-emptive colonisation ? (2) (e) What 1s edge effect 7 (2) PTO $863 2 2 Define the following any 6 @) (n) au) (v) ) Ww) ou on) ) (c) (d) (b) (c) Soul profile Biomagnification . Weathering Mimeralisation Immobilization Soil texture Niche Biopesticide (2x6=12) What is meant by controlied parasitism ? Explain with the help of an example @) Write a note on atmosphere as a habitat for microbes G) Microbial succession is common in soil Comment @G) QB) Explain syntrophism What do you know about drazotrophs ? (2) Explain allelopathic effect (2) Write a brief note on hydro-thermal vent as habitats for micro-organisms (2)