AIDS and cancer — NEET & JEE Questions

Question 1 · difficulty L1 · recall

Which virus causes AIDS?

• A. HBV
• B. HIV
• C. Influenza virus
• D. Rhinovirus

Question 2 · difficulty L2 · understanding

Neoplastic characteristics of cells refer to: A. A mass of proliferating cell B. Rapid growth of cells C. Invasion and damage to the surrounding tissue D. Those confined to original location Choose the correct answer from the options given below:

• A. A, B, D only
• B. B, C, D only
• C. A, B only
• D. A, B, C only

Question 3 · difficulty L2 · understanding

AIDS is caused by infection with

• A. HIV
• B. Plasmodium
• C. Salmonella typhi
• D. a prion

Question 4 · difficulty L2 · understanding

HIV progressively weakens immunity mainly by damaging populations of

• A. CD4 helper T lymphocytes
• B. red blood cells only
• C. platelets only
• D. bone cells

Question 5 · difficulty L3 · understanding

Which are correct: A. Computed tomography and magnetic resonance imaging detect cancers of internal organs. B. Chemotherapeutics drugs are used to kill non-cancerous cells. C. $\alpha$-interferon activate the cancer patients' immune system and helps in destroying the tumour. D. Chemotherapeutic drugs are biological response modifiers. E. In the case of leukaemia blood cell counts are decreased. Choose the correct answer from the options given below:

• A. C and D only
• B. A and C only
• C. B and D only
• D. D and E only

Question 6 · difficulty L3 · application

Why does HIV infection make a person increasingly vulnerable to opportunistic infections?

• A. It strengthens all innate barriers
• B. It permanently increases antibody production
• C. It reduces helper T-cell function
• D. It converts bacteria into viruses

Question 7 · difficulty L3 · application

Which route can transmit HIV?

• A. Sharing contaminated injection needles
• B. Casual handshaking
• C. Sharing a classroom seat
• D. Mosquito bites

Question 8 · difficulty L3 · application

A tumour invades surrounding tissue and spreads to distant organs. This behaviour is characteristic of

• A. malignancy with metastasis
• B. a benign tumour only
• C. normal tissue repair
• D. allergic inflammation

Question 9 · difficulty L4 · application

Why are people with advanced untreated HIV infection vulnerable to opportunistic infections?

• A. Loss of effective immune coordination allows normally controlled pathogens to cause disease
• B. HIV converts every bacterium into a virus
• C. Their red blood cells disappear immediately
• D. Their immune system becomes stronger

Question 10 · difficulty L4 · application

A chemical increases mutation risk and thereby increases the chance that cells acquire growth-control defects. Such a chemical can be described as a

• A. carcinogen
• B. vaccine
• C. antibody
• D. antacid