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AP Intermediate 2nd Year Biology in Human Welfare & Health — practice questions

Explore 116 free Biology in Human Welfare & Health questions in AP Intermediate 2nd Year 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 1–30 of 116.

Antibodies are produced byRead the answer and worked solution →Antibodies passed from a mother to her infant through breast milk give the infantRead the answer and worked solution →Vaccination provides protection against future infection mainly byRead the answer and worked solution →HIV primarily infectsRead the answer and worked solution →The spread of cancer cells from the original site to distant organs is calledRead the answer and worked solution →Cervical cancer is most commonly caused byRead the answer and worked solution →Polio is caused by:Read the answer and worked solution →The vector that transmits MALARIA is:Read the answer and worked solution →According to WHO, health is best defined as:Read the answer and worked solution →Innate immunity is best described as:Read the answer and worked solution →The MOST ABUNDANT antibody class in human blood is:Read the answer and worked solution →HPV (Human Papillomavirus) is a known cause of:Read the answer and worked solution →Which of these is a common opioid drug of abuse?Read the answer and worked solution →Typhoid fever is caused by:Read the answer and worked solution →Anabaena and Nostoc are examples of:Read the answer and worked solution →NEET · Biology · Disease ↔ PathogenRead the answer and worked solution →NEET · Biology · Tap Useful MicrobesRead 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 →Complete the definition of healthRead the answer and worked solution →True or false: what health meansRead the answer and worked solution →Tap every public health measure the chapter namesRead the answer and worked solution →Vector-borne diseaseRead the answer and worked solution →Personal or public measure?Read the answer and worked solution →True or false: immunity and diseaseRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Flip and pair: term with meaningRead the answer and worked solution →

Worked practice questions

Antibodies are produced by

  1. red blood cells
  2. platelets
  3. B lymphocytes
  4. neutrophils
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Correct answer: C. B lymphocytes

B lymphocytes (B cells) differentiate into plasma cells that produce antibodies — proteins that bind to specific antigens and mark pathogens for destruction. T cells handle cell-mediated immunity.

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Antibodies passed from a mother to her infant through breast milk give the infant

  1. active immunity, lifelong
  2. passive immunity, short-lived
  3. no immunity
  4. innate immunity only
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Correct answer: B. passive immunity, short-lived

Mother's antibodies (passed via colostrum and breast milk) give the baby passive immunity — protective but short-lived, because the baby isn't making them. Bridges the gap until the baby's own immune system develops.

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Vaccination provides protection against future infection mainly by

  1. weakening the pathogen on contact
  2. creating memory B and T cells specific to the pathogen
  3. destroying the body's antibodies
  4. preventing pathogens from entering the body
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Correct answer: B. creating memory B and T cells specific to the pathogen

Vaccines expose the immune system to antigens, producing memory B and T cells. On real exposure, these memory cells trigger a fast, strong secondary response — usually clearing the pathogen before disease develops.

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