Biology · Chapter 18 of 19

Biology in Everyday Life & Applied Biology: BPSC & UPPCS Prelims PYQs

12 previous-year questions on Biology in Everyday Life & Applied Biology. Each one opens to its answer and explanation.

1. 1. 70th BPSC Prelims 2024

   Quinine is a common drug for malaria that is obtained from a plant. Which part of the plant yields this drug?

   1. ALeaves
   2. BRoot
   3. CStem bark
   4. DNone of the above
   Answer and explanation →

2. 2. 70th BPSC Prelims 2024

   Turmeric powder is obtained from which part of turmeric plant?

   1. ADried foot
   2. BDried root
   3. CSeed
   4. DNone of the above
   Answer and explanation →

3. 3. UPPSC Prelims 2023

   Seaweeds are important source of -

   1. AIodine
   2. BArgon
   3. CBromine
   4. DChlorine
   Answer and explanation →

4. 4. 67th BPSC Prelims 2022

   Biodegradable wastes can usually be converted into useful substance with the help of

   1. Abacteria
   2. Bviruses
   3. Cnuclear proteins
   4. Dradioactive substances
   5. ENone of the above/More than one of the above
   Answer and explanation →

5. 5. UPPSC Prelims 2020

   Which of the following substances is obtained from a tree?

   1. AAsafoetida
   2. BBitumen
   3. CTincal
   4. DNone of the above
   Answer and explanation →

6. 6. UPPSC Prelims 2019

   Tulsi plant has medicinal values due to the presence of which of the following?

   1. AInorganic Acid
   2. BOrganic Acid
   3. CPhenols and Flavonoids
   4. DNone of the above
   Answer and explanation →

7. 7. UPPSC Prelims 2018

   Which pain killer given to cattle is responsible for near extinction of vultures in India?

   1. AIbuprofen
   2. BAcetaminophen
   3. CAspirin
   4. DDiclofenac
   Answer and explanation →

8. 8. UPPSC Prelims 2017

   Match List I with List II and select the correct answer using the code given below: [List-I: Product · List-II: Source] A. Opium 1. Bark
   B. Hing 2. Root
   C. Rubber 3. Fruit
   D. Quinine 4. Stem

   1. AA - 1, B - 2, C - 3, D - 4
   2. BA - 3, B - 2, C - 4, D - 1
   3. CA - 4, B - 2, C - 1, D - 3
   4. DA - 2, B - 4, C - 3, D - 1
   Answer and explanation →

9. 9. UPPSC Prelims 2016

   Pungency in chillies is due to the presence of

   1. ALycopene
   2. BCapsaicin
   3. CCarotene
   4. DAnthocyanin
   Answer and explanation →

10. 10. UPPSC Prelims 2016

    Which yeast is used for commercial production of ethanol?

    1. ACandida albicans
    2. BSaccharomyces cerevisiae
    3. CCandida shoofi
    4. DLeucosporidium frigidum
    Answer and explanation →

11. 11. 56th–59th BPSC Prelims 2014

    What is vermiculture?

    1. AThe science of raising worms
    2. BThe science of studying animals
    3. CThe science of studying fishes
    4. DThe science of killing worms
    Answer and explanation →

12. 12. UPPSC Prelims 2014

    Some marine animals and insects emit light from their body in darkness. This phenomenon is known as

    1. APhosphorescence
    2. BBioluminescence
    3. CBoth (a) and (b)
    4. DNone of these
    Answer and explanation →