B and T Lymphocytes Immune Response — NEET Biology
🔥 Predicted for NEET 2027The primary and secondary immune responses are carried out with the help of two special types of lymphocytes present in our blood, i.e., B-lymphocytes and T-lymphocytes.
Adjacent to a frequently-asked paragraph in the same chapter.
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.
What does NCERT say about primary and secondary immune?
Has this concept appeared in NEET?
Which chapter is this from?
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.