NEET 2022 · BiologyPrevious Year Question
Given below are two statements: Statement I: Autoimmune disorder is a condition where the body defense mechanism recognizes its own cells as foreign bodies. Statement II: Rheumatoid arthritis is a condition where the body does not attack self cells. In the light of the above statements, choose the most appropriate answer from the options given below:
Answer: (C) Statement I is correct but Statement II is incorrect. Answer: C.
- A.Both Statement I and Statement II are correct
- B.Both Statement I and Statement II are incorrect
- C.Statement I is correct but Statement II is incorrect✓
- D.Statement I is incorrect but Statement II is correct
Correct Answer
(C) Statement I is correct but Statement II is incorrect
Solution & Explanation
Answer: C. Statement I is correct: in an autoimmune disorder the body's defense (immune) mechanism recognizes its own cells as foreign bodies. Statement II is incorrect: rheumatoid arthritis IS an autoimmune disease in which the body DOES attack its own (self) cells. NCERT lists Myasthenia gravis as an autoimmune disorder, illustrating that the immune system attacking self cells underlies such conditions. NCERT Ch 17, p.227, line 23: "Myasthenia gravis: Auto immune disorder affecting neuromuscular" junction.
🎯
43,000+ questions in हिंदी & English · one-tap toggle
Open →📚Practice all NEET Biology PYQs chapter-wise →💡Don't get it? Learn the Locomotion and Movement concepts →Practice NEET 2022 Biology — free, with instant solutions
43,000+ NEET questions solved step-by-step, chapter-wise, in the MedicNEET app.
More NEET PYQ solutions
BiolWhich one of the following is an example of ex-situ conservation?BiolWhich of the following is an example of a zygomorphic flower? (NEET 2025)BiolWhich of the following is an example of actinomorphic flower? (NEET 2024)BiolIn the seeds of cereals, the outer covering of endosperm separates the embryo by a protein-rich layer called : (NEET 2025)BiolGiven below are two statements: Statement I : In a floral formula the symbol [percentage/division-type symbol] stands for zygomorphic nature of the flower, and G with a bar above it stands for inferior ovary. Statement II : In a floral formula the symbol [same symbol] stands for actinomorphic nature of the flower and G with a bar below it stands for superior ovary. In the light of the above statements, choose the correct answer from the options given below: (NEET 2025)BiolMatch List I with List II: List I — A. Scutellum; B. Non-albuminous seed; C. Epiblast; D. Perisperm. List II — I. Persistent nucellus; II. Cotyledon of Monocot seed; III. Groundnut; IV. Rudimentary cotyledon. Choose the option with all correct matches. (NEET 2025)BiolGiven below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence. A. Prothallus stage B. Meiosis in spore mother cells C. Fertilisation D. Formation of archegonia and antheridia in gametophyte. E. Transfer of antherozoids to the archegonia in presence of water. Choose the correct answer from the options given below:BiolThe correct sequence of events in the life cycle of bryophytes is A. Fusion of antherozoid with egg. B. Attachment of gametophyte to substratum. C. Reduction division, to produce haploid spores. D. Formation of sporophyte. E. Release of antherozoids into water. Choose the correct answer from the options given below: