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NEET • BIOLOGY • HUMAN HEALTH AND DISEASES
Human health and diseases practice · Mixed difficulty
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Showing 241-259 of 259 questions
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241
Medium
241 of 259
Remembering
+4 | -1
Consider the following statements
I. Opioids are the drugs, which bind to opioid receptors in the central nervous system and gastrointestinal tract
II. Heroin is a white, odourless, bitter, crystalline compound
III. Heroin is commonly called smack
Which of the statements given above are correct?
I. Opioids are the drugs, which bind to opioid receptors in the central nervous system and gastrointestinal tract
II. Heroin is a white, odourless, bitter, crystalline compound
III. Heroin is commonly called smack
Which of the statements given above are correct?
View answer and explanation
Correct option: D
I, II and III
Option D (I, II and III) is correct because all three statements accurately describe opioids and heroin.
242
Easy
242 of 259
Understanding
+4 | -1
HIV affects …… in AIDS patients
View answer and explanation
Correct option: D
Helper T-cell
Option D is correct. HIV primarily affects Helper T-cells (CD4+ T cells) in AIDS patients, leading to immune deficiency.
243
Medium
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Understanding
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Assertion: Number of disease like polio, diphtheria, pneumonia and tetanus have been controlled to large extent
Reason: Vaccines are prepared against these diseases.
Reason: Vaccines are prepared against these diseases.
View answer and explanation
Correct option: A
If both the assertion and the reason are true and the reason is a correct explanation of the assertion.
Option A is correct because both the assertion and the reason are true, and the reason correctly explains why diseases like polio, diphtheria, pneumonia, and tetanus have been controlled.
244
Medium
244 of 259
Analyzing
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Which of the following options is not appropriate for anxiety disorder?
View answer and explanation
Correct option: A
Perspiration occurs
Option A is correct because perspiration is a physiological symptom of anxiety, while distorted thoughts and strong reactions to stress are psychological symptoms, and increased heart rate is also a physiological symptom.
245
Easy
245 of 259
Remembering
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AIDS virus is also known as
View answer and explanation
Correct option: D
All of these
Option D (All of these) is correct because HIV, HTLV-III, and LAV are all previous names or abbreviations used to refer to the AIDS virus.
246
Hard
246 of 259
Understanding
+4 | -1
Assertion: Pork should be properly cooked to
avoid Taenia infection.
Reason: It contains hexacanth and cysticeric
larvae.
avoid Taenia infection.
Reason: It contains hexacanth and cysticeric
larvae.
View answer and explanation
Correct option: C
If Assertion is true but Reason is false
Option C is correct because the assertion is true (pork should be properly cooked to avoid Taenia infection), but the reason is false (it contains cysticercus larvae, not hexacanth larvae).
247
Easy
247 of 259
Understanding
+4 | -1
The immune system plays a major role in
View answer and explanation
Correct option: D
All of these
Option D (All of these) is correct because the immune system is involved in allergic reactions, autoimmune diseases, and organ transplantation.
248
Hard
248 of 259
Remembering
+4 | -1
Ultrasound is produced by
View answer and explanation
Correct option: B
Lead zirconate
Option B (Lead zirconate) is correct because lead zirconate is a piezoelectric material commonly used to generate ultrasound.
249
Easy
249 of 259
Remembering
+4 | -1
Graveyard for RBCs is
View answer and explanation
Correct option: B
Spleen
Option B (Spleen) is correct because the spleen filters blood and removes old or damaged red blood cells.
250
Easy
250 of 259
Remembering
+4 | -1
Nutrition of Entamoeba is
View answer and explanation
Correct option: D
Parasitic
Option D (Parasitic) is correct because Entamoeba obtains nutrients by feeding on other organisms, living or dead, making it a parasite.
251
Easy
251 of 259
Remembering
+4 | -1
Which of the following vaccine has been produced from yeast by recombinant DNA technology?
View answer and explanation
Correct option: B
Hepatitis B
Option B (Hepatitis B) is correct because the Hepatitis B vaccine is produced using recombinant DNA technology in yeast.
252
Medium
252 of 259
Analyzing
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Assertion (A): Killer-T-Cell participate in only CMI.
Reason (R): They can lyse only the viral infected cell, but bot the tumour cell.
Reason (R): They can lyse only the viral infected cell, but bot the tumour cell.
View answer and explanation
Correct option: C
If assertion is true but reason is false
Option C (If assertion is true but reason is false) is correct because Killer T-cells participate in Cell-Mediated Immunity (CMI), but they can lyse both viral-infected cells and tumor cells.
253
Easy
253 of 259
Understanding
+4 | -1
With regard to the transmission of the Human Immunodeficiency Virus (HIV), Which one of the following statements is not correct?
View answer and explanation
Correct option: A
The chances of transmission from female to male are twice as likely as from male to female
Option A is correct because the transmission of HIV from male to female is more likely than from female to male due to biological factors.
254
Medium
254 of 259
Understanding
+4 | -1
Read the given statements
Statement-A : HIV is an oncogenic virus.
Statement-B : Non-cancerous cells exhibit contact inhibition.
Statement-C : Malignant tumors do not show metastasis and angiogenesis.
Choose the correct option.
Statement-A : HIV is an oncogenic virus.
Statement-B : Non-cancerous cells exhibit contact inhibition.
Statement-C : Malignant tumors do not show metastasis and angiogenesis.
Choose the correct option.
View answer and explanation
Correct option: D
Statements A and B are correct; Statement C is incorrect
The correct answer is D (Statements A and B are correct; Statement C is incorrect) because HIV is an oncogenic virus, non-cancerous cells exhibit contact inhibition, and malignant tumors do show metastasis and angiogenesis.
255
Easy
255 of 259
Remembering
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Purified antibiotic penicillin of Penicillium notatum was discovered by
View answer and explanation
Correct option: A
Alexander Fleming
Option A is correct. Alexander Fleming discovered penicillin from Penicillium notatum.
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256
Medium
256 of 259
Remembering
+4 | -1
Electrocardiograph was developed by
View answer and explanation
Correct option: C
Willen Einthoven
Option C (Willen Einthoven) is correct because Willen Einthoven developed the electrocardiograph (ECG), a device used to measure the electrical activity of the heart.
257
Medium
257 of 259
Remembering
+4 | -1
Encysted, non-motile and non-feeding infectious stage of Entamoeba histolytica is called
View answer and explanation
Correct option: C
Minuta form
Option C (Minuta form) is correct because the minuta form of Entamoeba histolytica is the non-invasive, non-motile, and non-feeding encysted stage that is infectious.
258
Easy
258 of 259
Understanding
+4 | -1
One of the following is NOT the preferable mode of transmission of HIV infection
View answer and explanation
Correct option: A
Sharing glasses and utensils with an effected individual
Option A (Sharing glasses and utensils with an effected individual) is correct because HIV is not transmitted through casual contact like sharing utensils.
259
Medium
259 of 259
Analyzing
+4 | -1
In the metropolitan cities of India, many children are suffering from allergy or asthma. What are the main causes of this problem?
I. Due to sensitivity to the environment
II. Because of the protected environment provided early in life
III. Modern-day life style
I. Due to sensitivity to the environment
II. Because of the protected environment provided early in life
III. Modern-day life style
View answer and explanation
Correct option: D
I, II and III
Option D is correct because all the listed factors (sensitivity to the environment, protected early environment, and modern lifestyle) contribute to the increased prevalence of allergies and asthma in metropolitan cities.
Revision notes and key takeaways
Review HUMAN HEALTH AND DISEASES in your textbook or class notes, then use this set to check your understanding.
Showing 241-259 of 259 questions