NEET 1990 · Class 11
Cell: The Unit of Life
The latest model for plasma membrane is
- (A)lamellar model
- (B)unit membrane model
- (C)fluid mosaic model
- (D)molecular lipid model
The NCERT line that answers it
Verbatim lineAn improved model of the structure of cell membrane was proposed by Singer and Nicolson (1972) widely accepted as **fluid mosaic model** (Figure 8.4).
- Chapter
- Cell: The Unit of Life
- Section
- 8.5.1 Cell Membrane
- Page
- 9
- Words matched
- 24 of 24
The answer appears as a continuous sentence in NCERT. This is that sentence.
How this line gives the answer
0, emb=1.0, combined=1.0). Verified: high — The span explicitly states that the fluid mosaic model is an improved and widely accepted model of the cell membrane structure, directly matching the MCQ's correct answer.
We did this for 1,565 questions.
Every one traced to the exact sentence in NCERT that answers it, including 90% of the 2026 paper. Sit a mock on the real NEET 2027 computer interface and every mark you drop comes back with its line attached.
Question text is reproduced from the published NEET 1990 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.