Antibody Structure and Labeling — NEET Biology
📚 Practice ConceptDraw a well-labelled diagram of an antibody molecule.
Consider the following statements about acquired immunity: 1. It is pathogen-specific and characterised by memory. 2. Primary immune response is of high intensity while secondary response is weaker. 3. T-lymphocytes mediate cell-mediated immunity (CMI). 4. Antibody structure consists of two light and two heavy peptide chains, represented as H₂L₂. 5. Antibody-mediated response is also called humoral immune response. Which of the above statements are correct?
View solution & NCERT explanation
Correct answer: D — 1, 3, 4, 5 only
Statement 1: Correct — acquired immunity is pathogen-specific with memory. Statement 2: Incorrect — primary response is weak; secondary (anamnestic) is strong. Statement 3: Correct — T-lymphocytes mediate cell-mediated immunity. Statement 4: Correct — antibodies have two light and two heavy chains (H₂L₂). Statement 5: Correct — antibody-mediated response is also called humoral response. Correct statements are 1, 3, 4, 5.
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Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.
176/180MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.