Food Processing And Industrial Production Test

Food Processing And Industrial Production

This is online test 01 for CBSE class 12 Biology Microbes in Human Welfare (Food processing and industrial production).. There are 10 questions in this test with each question having around four answer choices.

Questions & Answers

1
Micro-organisms that grow in milk and convert it to curd is commonly called
  • A
    Lactic acid bacteria
    Correct
  • B
    Milk bacteria
  • C
    Lacto-bacteria
  • D
    Curd bacteria
2
Ethanol is commercially produced through a particular species of
  • A
    Saccharomyces
    Correct
  • B
    Clostridium
  • C
    Aspergillus
  • D
    Trichoderma
3
The puffed-up appearance of dough is due to production of
  • A
    \(C{O_2}\)gas
    Correct
  • B
    Water vapour
  • C
    \(S{O_2}\) gas
  • D
    \({O_2}\) gas
4
Which of the following bacterium produces butyric acid?
  • A
    Acetobacter aceti
  • B
    Clostridium butylicum
    Correct
  • C
    None of these
  • D
    Lactobacillus
5
The most common fungal partners of mycorrhiza are ______ species.
  • A
    Azotobacter
  • B
    Glomus
    Correct
  • C
    Azolla
  • D
    Frankia
6
Yeast is used in the production of
  • A
    Bread and beer
    Correct
  • B
    Citric acid and lactic acid
  • C
    Cheese and butter
  • D
    Lipase and pectinase
7
Which of the followings is also called sac fungi that live parasitically and in various habitats?
  • A
    Phycomycetes
  • B
    Basidiomycetes
  • C
    Zygomycetes
  • D
    Ascomycetes
    Correct
8
Humulin is a
  • A
    Vitamin
  • B
    Protein
    Correct
  • C
    Carbohydrates
  • D
    Fat
9
First organic acid produced by microbial fermentation is
  • A
    Citric acid
  • B
    Lactic acid
    Correct
  • C
    Tartaric acid
  • D
    Acetic acid
10
Vinegar is obtained from molasses with the help of
  • A
    None of these
  • B
    Yeast and Rhizopus
  • C
    Yeast and Acetobator
    Correct
  • D
    Acetobacter and Rhizopus