2021 食品微生物学(北部湾大学)1465536450 最新满分章节测试答案
本答案对应课程为:点我自动跳转查看
本课程起止时间为:2021-11-13到2021-12-03
本篇答案更新状态:已完结
第一讲 绪论
1、 问题:Which of the following is not the object of microbiology?
选项：
A:Virus
B:Archaea
C:Mushroom
D:Nematode (线虫)
答案: 【Nematode (线虫)】
2、 问题:Cell structures that only exist in eukaryotes but not prokaryotes do not include____.
选项：
A:Nucleus with membrane
B:Organelles with membrane
C:Ribosome
D:Cell wall
答案: 【Ribosome】
3、 问题:A typical bacterial cell is around ____.
选项：
A:Dozens of nanometers
B: Several micrometers
C: Several millimeters
D: Dozens of micrometers
答案: 【 Several micrometers】
4、 问题:Which of the following is not a fungus?
选项：
A:Yeast
B: Mold
C:Mushroom
D:Diatom
答案: 【Diatom】
5、 问题:How many microbes are there in one gram of typical human feces (粪便)？
选项：
A:10^6
B:10^8
C:10^11
D:10^13
答案: 【10^11】
6、 问题:Which of the following is not a Pasteur’s contribution to microbiology?
选项：
A:Settle the theory of spontaneous generation
B: Invention of vaccine
C:Discovery of microorganisms
D:Fermentation is processed by microorganisms
答案: 【Discovery of microorganisms】
7、 问题:Which of the following is not a Koch’s contribution to microbiology?
选项：
A: Invention of solid medium for bacterial isolation
B: Propose Koch’s Postulates
C: Identify the pathogen of tuberculosis
D:Discovery of antibiotics
答案: 【Discovery of antibiotics】
8、 问题:Which reason will cause failure of the experiments that were designed to deny the theory of spontaneous generation for microorganisms?
选项：
A:Sealing of the bottles or flasks is not tight enough
B:Boiling time for the broth is not enough
C:Contamination by the cotton that was used to filter the air
D:All above
答案: 【All above 】
9、 问题:Which of following is the merit of agar as a solidifying agent for culture medium?
选项：
A:Transparent
B:Not degradable for most microorganisms
C:Melt at 90-100 degree C
D:All above
答案: 【All above】
10、 问题:Fermentation products are not included ____
选项：
A:Glucose
B:Alcohol
C:Acetone
D:Lactic acid
答案: 【Glucose】
11、 问题:The discovery of penicillin is in ____
选项：
A:1928
B:1935
C:1940
D:1945
答案: 【1928】
12、 问题:Which of the following is not an exact Koch’s postulate?
选项：
A:The same microorganisms are present in every case of the disease
B:Microorganisms could be isolated in pure culture
C:Microorganisms from the pure culture are inoculated into healthy, susceptible animals and the animals die
D:The identical microorganisms are isolated and re-cultivated from the tissue specimens of the experimental animals
答案: 【Microorganisms from the pure culture are inoculated into healthy, susceptible animals and the animals die】
13、 问题:Industrial fermentation usually directly controls ____ in the fermenters (发酵装置).
选项：
A:Dissolved oxygen
B:Temperature
C:Supply of nutrients
D:Metabolic pathways of microorganisms
答案: 【Metabolic pathways of microorganisms】
14、 问题:All microbes cannot be seen by naked eyes.
选项：
A:正确
B:错误
答案: 【错误】
15、 问题:Mycology is a subject for studying mycobacterium (分支杆菌).
选项：
A:正确
B:错误
答案: 【错误】
16、 问题:Leeuwenhoek is the first one who saw microorganisms under microscope.
选项：
A:正确
B:错误
答案: 【正确】
17、 问题:Super bacteria are pathogens that are resistant to one antibiotic at very high concentration.
选项：
A:正确
B:错误
答案: 【错误】
18、 问题:Numerous microbial cells live in human gut. They are at least comparable to the number of human cells.
选项：
A:正确
B:错误
答案: 【正确】
19、 问题:Yeasts belong to bacteria.
选项：
A:正确
B:错误
答案: 【错误】
20、 问题:Pasteurization is used to kill mainly vegetative pathogens and many spoilage bacteria.
选项：
A:正确
B:错误
答案: 【正确】
21、 问题:Hans Christian Gram developed Gram staining of bacterial cells.
选项：
A:正确
B:错误
答案: 【正确】
22、 问题:Sanitation in the handling of food to reduce contamination by microorganisms have been recognized.
选项：
A:正确
B:错误
答案: 【正确】
第二讲 原核微生物
1、 问题:Some microbes are unable to synthesize certain molecules needed for survival. () are called growth factors
选项：
A:amino acids, purines and pyrimidines, and vitamins.
B:vitamins, pyrins and virus
C:oxygen, nitrogen and iron
D:vitamins, oxygen and amino acids
答案: 【amino acids, purines and pyrimidines, and vitamins.】
2、 问题:Which is not belong to micronutrients or trace elements
选项：
A:manganes
B:cobalt
C:molybdenum
D:iron
答案: 【iron】
3、 问题:Which is the component of plasma membrane of bacteria
选项：
A: hopanoid
B:sterol
C:ester
D:cholesterol
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