NEET Biology: Microbes in Human Welfare — MCQ Test 7

Q6. Which metabolic product of yeast is responsible for the rising of dough in bread-making?

Q7. Which of the following statements about biogas production is correct?

Q8. Which of the following microbes is involved in the anaerobic digestion of sewage sludge?

Q9. Which biofertilizer helps in phosphorus absorption for plants?

Q10. Which of the following bioactive molecules is used to lower cholesterol levels?

NEET Biology — Microbes in Human Welfare

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Which microorganism helps in the biocontrol of aphids in agriculture?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Biology preparation, focusing specifically on the chapter Microbes in Human Welfare. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Microorganism, Biocontrol, Agriculture, Following, Bacteria, and Commercial.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. Which microorganism helps in the biocontrol of aphids in agriculture?

  • A. Bacillus thuringiensis
  • B. Ladybird beetle
  • C. Trichoderma
  • D. Aspergillus

Q2. Which of the following bacteria is used for the commercial production of acetic acid?

  • A. Lactobacillus
  • B. Acetobacter aceti
  • C. Clostridium butylicum
  • D. Saccharomyces cerevisiae

Q3. Which of the following statements about Bt toxin is incorrect?

  • A. Bt toxin is produced by Bacillus thuringiensis.
  • B. Bt toxin is harmful to humans.
  • C. Bt toxin becomes active in the alkaline gut of insects.
  • D. Bt crops have been genetically modified to produce Bt toxin.

Q4. Which of the following microbes is used in the commercial production of butanol?

  • A. Clostridium butylicum
  • B. Saccharomyces cerevisiae
  • C. Bacillus thuringiensis
  • D. Methanobacterium

Q5. Which of the following microbes is commonly used for biofertilization in paddy fields?

  • A. Azospirillum
  • B. Rhizobium
  • C. Nostoc
  • D. Clostridium

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