Engineering Sciences
GATE XE topic:food-microbiology PYQs
Build your understanding with focused practice from past exam papers.
Questions 21–30 of 33. Imported answers require independent review unless marked reviewed.
Question 4
Open questionXE-GMCQ1 markNeeds review
Which of the following bacteria will stain purple color after Gram staining?
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Open questionXE-GMCQ1 markNeeds review
The INCORRECT pair of food borne illness and its causative microorganism is
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 9
Open questionXE-GNAT1 markNeeds review
The initial population of a bacterial strain increases from 1×10⁴ cells per mL to 1×10⁶ cells per mL in 120 minutes. The generation time for this strain (round off to 2 decimal places) is _____ minutes.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 15
Open questionXE-GMCQ2 marksNeeds review
Which among the given options correctly explains the nature of the microbial culture represented by curves 1, 2 and 3 in the following figure?
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 11
Open questionXE-GMCQ2 marksNeeds review
Match the mold in Column I with its asexual/sexual spore shown in Column II.
Column I
P Aspergillus
Q Geotrichum
R Rhizopus
S Oomycetes
Column II
1 Arthrospore
2 Oospores
3 Conidia
4 Sporangiospores
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 14
Open questionXE-GMCQ2 marksNeeds review
Match the following microbial species in Column I with related disease caused by them as listed in Column II.
Column I
P Vibrio sp.
Q Shigella sp.
R E. coli
S Salmonella typhi
Column II
1 Gastroenteritis
2 Typhoid
3 Cholera
4 Bacillary dysentery
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 12
Open questionXE-GMCQ2 marksNeeds review
Match the spoilage symptom in Group I with the causative microorganism in Group II
Group I
P. Green rot of eggs
Q. Putrid swell in canned fish
R. Red bread
S. Yellow discoloration of meat
Group II
Micrococus spp.
Serratia marcescens
Pseudomonas fluorescens
Clostridium sporogenes
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 13
Open questionXE-GMCQ2 marksNeeds review
Match the fermented product in Group I with the base material in Group II
Group I
P. Sake
Q. Churpi
R. Natto
S. Sauerkraut
Group II
Milk
Cabbage
Rice
Soybean
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 19
Open questionXE-GNAT2 marksNeeds review
A microbial sample taken at 10 AM contained 1x10^5 CFU/mL. The count reached to 1x10^ CFU/mL at 8 PM of the same day. The growth rate (h^) of the microorganism would be ______.(up to two decimal points)
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 123
Open questionXE-GMCQ1 markNeeds review
In which of the following products, ‘must’ is used as the substrate for fermentation?
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