Download App

Microbes in Human Welfare BIOLOGY - Microbes in Human Welfare

Gujarat Board (GSEB) - STD 12 Science - BIOLOGY (GSEB - English Medium). 91 questions in this chapter.

Question types

Microbes in Human Welfare question types

91 questions across 6 question groups — pick any mix to generate a BIOLOGY paper with step-by-step answer keys.

91
Questions
6
Question groups
5
Question types
Sample Questions

Microbes in Human Welfare questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 181 Marks Question1 Mark
(i) Write the name of one such genus of fungus which establishes mycorrhizae relationship with plants.
(ii) How do the plants get benefitted from this relation?
View full solution →
Q 191 Marks Question1 Mark
In order to improve soil fertility, farmers are often advised to add the following microbes to the fields. Explain.
(a) Rhizobium (b) Anabaena
View full solution →
Q 201 Marks Question1 Mark
(a) Cattle waste are the important sources in the production of domestic fuel. Write the name of the fuel produced from it and also write the names of its main components.
(b) Write the name of the biological process which is responsible for the production of this fuel.
View full solution →
Q 21M.C.Q (1 Marks)1 Mark
Citric acid is produced by which of the following micro-organisms
  • A
    Acetobacter aceti
  • B
    Clostridium butylicum
  • C
    Lactobacillus species
  • ✓
    Aspergillus niger

Answer: D.

View full solution →
Q 23M.C.Q (1 Marks)1 Mark
In 'fed batch' fermentation method, the process of continuously adding sugar is done for which of one of the followings?
  • A
    In preparing methane
  • ✓
    In obtaining antibiotics
  • C
    In purification of enzymes
  • D
    In sewage decomposition

Answer: B.

View full solution →
Browse all question groups ↑

Generate a Microbes in Human Welfare paper free

Pick question groups from the list above, set marks and difficulty, and export a branded PDF with step-by-step answer keys. First 3 chapters free — no signup.

Download App
Generate Paper FreeAll BIOLOGY chapters