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ISC Class 12 Biology in Human Welfare & Health — practice questions — page 2

Explore 58 free Biology in Human Welfare & Health questions in ISC Class 12 Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Biology in Human Welfare & Health questions and exercises with answers

Showing questions 31–58 of 58.

Sort the microbe usesRead the answer and worked solution →Name the microbe or termRead the answer and worked solution →Microbes in human welfare bingoRead the answer and worked solution →The first antibiotic to be discovered was:Read the answer and worked solution →Municipal waste water is also called:Read the answer and worked solution →The gas produced by microbes from dung and used as fuel is:Read the answer and worked solution →Lactic acid bacteria coagulate milk protein by producing:Read the answer and worked solution →BOD stands for biochemical oxygen:Read the answer and worked solution →A common methane producing bacterium is:Read the answer and worked solution →Root nodules of legumes are formed by symbiosis with:Read the answer and worked solution →The fungus developed as a biological control for plant disease is:Read the answer and worked solution →Sewage is treated until its BOD is:Read the answer and worked solution →Cyanobacteria such as Anabaena serve as biofertilisers in:Read the answer and worked solution →Complete the antibiotic storyRead the answer and worked solution →Complete the definition of healthRead the answer and worked solution →Match the microbe to its productRead the answer and worked solution →NEET · Biology · Microbe ↔ ProductRead the answer and worked solution →NEET · Biology · Indigenous Cattle or Exotic BreedRead the answer and worked solution →NEET · Biology · Sewage Treatment — Gap FillRead the answer and worked solution →Penicillin was named after which mould?Read the answer and worked solution →Vaccination provides protection against future infection mainly byRead the answer and worked solution →Which of these is a common opioid drug of abuse?Read the answer and worked solution →Cervical cancer is most commonly caused byRead the answer and worked solution →NEET · Biology · Disease ↔ PathogenRead the answer and worked solution →NEET · Biology · Tap Useful MicrobesRead the answer and worked solution →HIV primarily infectsRead the answer and worked solution →Milk is converted into curd by which micro-organism?Read the answer and worked solution →The puffed up appearance of dough is caused by:Read the answer and worked solution →

Worked practice questions

Sort the microbe uses

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Items
  1. Item
    Curd from milk
    Category
    Food
  2. Item
    Puffed up dough
    Category
    Food
  3. Item
    Sewage treatment
    Category
    Waste
  4. Item
    Biogas from dung
    Category
    Waste
  5. Item
    Root nodules
    Category
    Farming
  6. Item
    Paddy field algae
    Category
    Farming
Categories
  1. Item
    Food
  2. Item
    Waste
  3. Item
    Farming
Instructions
Tap an item, then tap the box it belongs in.
_Source: syllabus Biology, Ch 8 'Microbes in Human Welfare'_

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Name the microbe or term

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Questions
  1. Question
    Sets milk into curd
    Choices
    1. Lactobacillus
    2. Baculovirus
    3. Glomus
    Correct choice
    Lactobacillus
  2. Question
    Attacks insects, used as a biological control
    Choices
    1. Lactobacillus
    2. Baculovirus
    3. Glomus
    Correct choice
    Baculovirus
  3. Question
    Forms mycorrhiza with plant roots
    Choices
    1. Lactobacillus
    2. Baculovirus
    3. Glomus
    Correct choice
    Glomus
  4. Question
    Oxygen bacteria would use on the organic matter
    Choices
    1. BOD
    2. STP
    3. LAB
    Correct choice
    BOD
Instructions
Tap the answer that fits the description.
_Source: syllabus Biology, Ch 8 'Microbes in Human Welfare'_

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Microbes in human welfare bingo

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Clues and terms
  1. Clue
    Turns warm milk into curd.
    Item
    Lactobacillus
  2. Clue
    Raises dough and ferments drinks.
    Item
    Yeast
  3. Clue
    The first antibiotic discovered.
    Item
    Penicillin
  4. Clue
    Noticed the mould killing bacteria.
    Item
    Fleming
  5. Clue
    Immune drug from a Trichoderma.
    Item
    Cyclosporin
  6. Clue
    Another name for municipal waste water.
    Item
    Sewage
  7. Clue
    Oxygen bacteria would use on the waste.
    Item
    BOD
  8. Clue
    Makes methane inside a biogas plant.
    Item
    Methanogen
  9. Clue
    Fixes nitrogen inside root nodules.
    Item
    Rhizobium
Instructions
Read each clue and tap the term it describes.
_Source: syllabus Biology, Ch 8 'Microbes in Human Welfare'_

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