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AP EAMCET Zoology Unit 6: Biology in Human Welfare — practice questions — page 3

Explore 83 free Zoology Unit 6: Biology in Human Welfare questions in AP EAMCET Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Zoology Unit 6: Biology in Human Welfare questions and exercises with answers

Showing questions 61–83 of 83.

Cocaine interferes with the transport of which neurotransmitter?Read the answer and worked solution →Which alkaloid in tobacco raises blood pressure and heart rate?Read the answer and worked solution →Smoking raises blood levels of which gas, reducing haem-bound oxygen?Read the answer and worked solution →Chronic drug and alcohol use damages the nervous system and which organ?Read the answer and worked solution →Which infections spread when intravenous drug users share needles?Read the answer and worked solution →Which lactic acid bacterium converts milk to curd?Read the answer and worked solution →Curd has improved nutritional quality because it has more of which vitamin?Read the answer and worked solution →The puffed-up look of dosa and idli dough is due to production of which gas?Read the answer and worked solution →Which bacterium forms the large holes in Swiss cheese?Read the answer and worked solution →Which yeast is used for bread making and brewing?Read the answer and worked solution →Which of these drinks is produced by distillation of the fermented broth?Read the answer and worked solution →Which scientist discovered Penicillin by chance while working on Staphylococci?Read the answer and worked solution →Penicillin was named after which mould?Read the answer and worked solution →Who established the full potential of Penicillin as an antibiotic?Read the answer and worked solution →Which microbe is used for commercial production of citric acid?Read the answer and worked solution →Which bacterium produces acetic acid commercially?Read the answer and worked solution →Streptokinase, a clot buster, is produced by which bacterium?Read the answer and worked solution →Which organism produces the immunosuppressant cyclosporin A?Read the answer and worked solution →Statins that lower blood cholesterol are produced by which yeast?Read the answer and worked solution →What does BOD measure in sewage treatment?Read the answer and worked solution →The sediment of bacterial flocs in secondary sewage treatment is called what?Read the answer and worked solution →Which bacteria produce methane in biogas plants?Read the answer and worked solution →Which gas is the main component of gobar gas?Read the answer and worked solution →

Worked practice questions

Cocaine interferes with the transport of which neurotransmitter?

  1. Dopamine amine
  2. Acetylcholine
  3. GABA transmitter
  4. Serotonin amine
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Correct answer: A. Dopamine amine

Cocaine interferes with dopamine transport, giving euphoria and increased energy.

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Which alkaloid in tobacco raises blood pressure and heart rate?

  1. Morphine
  2. Cocaine
  3. Atropine
  4. Nicotine
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Correct answer: D. Nicotine

Nicotine stimulates the adrenal gland to release adrenaline and nor-adrenaline, raising blood pressure and heart rate.

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Smoking raises blood levels of which gas, reducing haem-bound oxygen?

  1. Carbon dioxide
  2. Carbon monoxide
  3. Nitrogen gas
  4. Methane gas
Show answer and solution

Correct answer: B. Carbon monoxide

Carbon monoxide binds haemoglobin and lowers oxygen carried, causing oxygen deficiency.

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