Class XII · Biology practice

Human Health and Disease MCQs

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446 questions in this collection · Page 32 of 45

Question 311 of 446

📘 CLASS XII

Human Health And Disease

Lymph nodes serve to ____ the micro-organisms or other antigens that get into the lymph and tissue fluid.

Lymph nodes serve to trap the micro-organisms or other antigens.

Question 312 of 446

📘 CLASS XII

Human Health And Disease

The lymphoid tissue located within the lining of the major tracts is called ____-Associated Lymphoid Tissue (MALT).

Lymphoid tissue located within the lining of the major tracts is called mucosa-associated lymphoid tissue (MALT).

Question 313 of 446

📘 CLASS XII

Human Health And Disease

AIDS is classified as an acquired deficiency of the ____ system.

AIDS stands for Acquired Immuno Deficiency Syndrome, meaning deficiency of the immune system.

Question 314 of 446

📘 CLASS XII

Human Health And Disease

HIV is not spread by mere touch or physical contact; it spreads only through body ____.

HIV/AIDS is not spread by mere touch or physical contact; it spreads only through body fluids.

Question 315 of 446

📘 CLASS XII

Human Health And Disease

In AIDS patients, the immunodeficiency makes them suffer frequently from infections due to bacteria, especially ____, viruses, fungi and parasites.

The person suffers from infections due to bacteria especially Mycobacterium, viruses, fungi and even parasites.

Question 316 of 446

📘 CLASS XII

Human Health And Disease

Treatment of AIDS with anti-retroviral drugs is only partially effective and can only ____ the life of the patient.

Treatment with anti-retroviral drugs is only partially effective; they can only prolong the life of the patient.

Question 317 of 446

📘 CLASS XII

Human Health And Disease

One step taken to prevent HIV spread is ensuring the use of only ____ needles and syringes in hospitals and clinics.

Ensuring the use of only disposable needles and syringes is a step taken to prevent HIV spread.

Question 318 of 446

📘 CLASS XII

Human Health And Disease

The uncontrolled growth of cancerous cells results in masses of cells called ____.

Cancerous cells continue to divide giving rise to masses of cells called tumors.

Question 319 of 446

📘 CLASS XII

Human Health And Disease

Malignant tumors starve the normal cells by competing for vital ____.

Malignant tumors starve the normal cells by competing for vital nutrients.

Question 320 of 446

📘 CLASS XII

Human Health And Disease

Cancer-causing viruses are called oncogenic viruses and possess genes known as viral ____.

Cancer causing viruses called oncogenic viruses have genes called viral oncogenes.

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