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Human Health and Disease MCQs
Class XII Biology
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NCERT Based
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NEET Practice
📘 Concept Based
📝 Exam Level
🤖 AI Explanations
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446 questions in this chapter
Question 411 of 446
📘 CLASS XII
The yellow fluid secreted by the mother during the initial days of lactation is called ____.
The yellowish fluid colostrum secreted by mother during the initial days of lactation has abundant antibodies.
Question 412 of 446
📘 CLASS XII
Cancer-causing viruses are called ____ viruses.
Cancer causing viruses called oncogenic viruses have genes called viral oncogenes.
Question 413 of 446
📘 CLASS XII
The major cause of lung cancer is the chemical carcinogens present in ____ smoke.
The chemical carcinogens present in tobacco smoke have been identified as a major cause of lung cancer.
Question 414 of 446
📘 CLASS XII
The use of high doses of drugs may lead to death due to heart failure or ____ failure.
Excessive doses of drugs may lead to coma and death due to respiratory failure, heart failure or cerebral hemorrhage.
Question 415 of 446
📘 CLASS XII
Deteriorating relationships with family and friends and loss of interest in hobbies are common ____ signs of drug and alcohol abuse.
These are typical warning signs of drug and alcohol abuse.
Question 416 of 446
📘 CLASS XII
Yoga has been practised since time immemorial to achieve physical and ____ health.
Yoga has been practised since time immemorial to achieve physical and mental health.
Question 417 of 446
📘 CLASS XII
The genus of filarial worm causing filariasis are *W. bancrofti* and *W.* ____.
*Wuchereria (W. bancrofti* and *W. malayi*) cause elephantiasis.
Question 418 of 446
📘 CLASS XII
The main lymphoid organ is the bone marrow, where all ____ cells including lymphocytes are produced.
The bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced.
Question 419 of 446
📘 CLASS XII
The secondary lymphoid organs are located at different points along the ____ system.
The lymph nodes (secondary lymphoid organs) are located at different points along the lymphatic system.
Question 420 of 446
📘 CLASS XII
Acquired Immunity is achieved with the help of B-lymphocytes and ____-lymphocytes.
The acquired immune responses are carried out with the help of B-lymphocytes and T-lymphocytes.
