35-第一篇 微生物工业菌种与培养基（35- the first microbiological industrial strain and culture medium）.docVIP

35-第一篇 微生物工业菌种与培养基（35- the first microbiological industrial strain and culture medium） The first industrial base and the cultivation of microbial strains A choice 1. for bacterial growth ratio (C/N) A 5:1 B 25:1 C 40:1 D 80:1 2. laboratory cultured bacteria commonly used is () A beef extract peptone medium B potato medium C Gao 1 medium D wort medium The hydrolysis of starch 3. in the experiment we used medium is a (medium) A basic medium B enriched culture medium C selective medium D medium 4. the following substances belong to the growth factor (is) A. B. Glucose Peptone C.NaCl vitamin D. 5. nutrients into the cells in transporting material before and after the change in the structure of the () A B passive transport active transport C promotes the diffusion of D group shift (6.E.coli) belongs to the type of microorganisms. A B photoheterotroph photoautotroph C chemoautotroph D chemoheterotrophy Medium 7. commonly used laboratory actinomycetes (is) A beef extract peptone medium B potato medium C Gao 1 medium D wort medium 8. suitable for yeast growth pH values () A 5.0-6.0 B 3.0-4.0 C 8.0-9.0 D 7.0-7.5 9. suitable for bacterial growth pH values () A 5.0-6.0 B 3.0-4.0 C 8.0-9.0 D 7.0-7.5 10. blue bacteria belong to the type of microorganisms (). A B photoheterotroph photoautotroph C chemoautotroph D chemoheterotrophy Two, non title 1. bacteria multiply generation time required for generation. () All 2. nutrients influence microbial growth rate is called a growth limiting factor. () 3. in the optimum growth temperature, microbial growth and reproduction is the fastest, so the temperature of fermentation to produce single cell protein should choose the optimum growth temperature. () 4. in the solid medium, agar concentration (usually 0.5-1.0%.) 5.EMB medium, eosin methylene blue is the role of promoting the growth of Escherichia coli (). 6. carbon sources are essential to medium any microorganisms. () The 7. is the passive diffusion of microbial cells absorb nutrients