Start learning →

AP EAMCET Zoology Unit 6: Biology in Human Welfare — practice questions — page 2

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.

Practise Zoology Unit 6: Biology in Human Welfare with Quill →

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

Showing questions 31–60 of 83.

In tetanus, quick immune response needs direct injection of what?Read the answer and worked solution →The injection given after a snakebite contains what?Read the answer and worked solution →The hepatitis B vaccine produced by recombinant DNA technology is made in which organism?Read the answer and worked solution →An exaggerated immune response to environmental antigens is called what?Read the answer and worked solution →Which type of antibody is produced against allergens?Read the answer and worked solution →Allergic symptoms are due to release of histamine and serotonin from which cells?Read the answer and worked solution →Which drugs quickly reduce the symptoms of allergy?Read the answer and worked solution →Rheumatoid arthritis is an example of which condition?Read the answer and worked solution →Which is the main lymphoid organ where all blood cells are produced?Read the answer and worked solution →Which organ is large at birth but shrinks to a very small size by puberty?Read the answer and worked solution →Which lymphoid organ acts as a blood filter and holds a reservoir of erythrocytes?Read the answer and worked solution →About what share of the lymphoid tissue in the human body is MALT?Read the answer and worked solution →What is the full form of AIDS?Read the answer and worked solution →HIV belongs to which group of viruses?Read the answer and worked solution →Which enzyme lets HIV make viral DNA from its RNA genome?Read the answer and worked solution →HIV infection progressively reduces the number of which cells?Read the answer and worked solution →Which diagnostic test is widely used for AIDS?Read the answer and worked solution →Which route does NOT transmit HIV?Read the answer and worked solution →The usual time lag between HIV infection and AIDS symptoms is about how long?Read the answer and worked solution →Normal cells stop uncontrolled growth on contact with other cells through which property?Read the answer and worked solution →Which tumours stay at their original site and cause little damage?Read the answer and worked solution →The spread of cancer cells to distant sites is called what?Read the answer and worked solution →Agents that transform normal cells into cancerous cells are called what?Read the answer and worked solution →Genes in normal cells that can cause cancer when activated are called what?Read the answer and worked solution →Which is a major chemical cause of lung cancer?Read the answer and worked solution →In biopsy, what is examined under a microscope?Read the answer and worked solution →Which biological response modifier activates the immune system against tumours?Read the answer and worked solution →Heroin is chemically what?Read the answer and worked solution →Morphine is extracted from the latex of which plant?Read the answer and worked solution →Marijuana, hashish, charas and ganja come from which plant?Read the answer and worked solution →

Worked practice questions

In tetanus, quick immune response needs direct injection of what?

  1. Weakened bacteria
  2. Preformed antibodies
  3. Interferon proteins
  4. Memory B cells
Show answer and solution

Correct answer: B. Preformed antibodies

Preformed antibodies or antitoxin give immediate protection against the toxin, which is passive immunisation.

Open this question →

The injection given after a snakebite contains what?

  1. A weakened virus
  2. Inactivated bacteria
  3. Preformed antibodies
  4. Memory B cells
Show answer and solution

Correct answer: C. Preformed antibodies

Snakebite treatment uses preformed antibodies against the venom, a form of passive immunisation.

Open this question →

The hepatitis B vaccine produced by recombinant DNA technology is made in which organism?

  1. Escherichia coli
  2. Yeast cells
  3. Penicillium mould
  4. Agrobacterium
Show answer and solution

Correct answer: B. Yeast cells

Antigenic polypeptides of the hepatitis B virus are expressed in yeast to give the vaccine.

Open this question →

How to practise

  1. Choose a Zoology Unit 6: Biology in Human Welfare question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Biology topics

Cell: The Unit of LifePrinciples of Inheritance and VariationSexual Reproduction in Flowering PlantsZoology Unit 4: Animal Diversity-II: Phylum ChordataMorphology of Flowering PlantsPlant PhysiologyHuman Anatomy and Physiology-IMolecular Biology