NEET 2001 · Class 11

Cell: The Unit of Life

Element necessary for the middle lamella is

  1. (A)Ca
  2. (B)Zn
  3. (C)K
  4. (D)Cu

The NCERT line that answers it

Verbatim line

The middle lamella is a layer mainly of calcium pectate which holds or glues the different neighbouring cells together.

Chapter
Cell: The Unit of Life
Section
8.5.2 Cell Wall
Page
9
Words matched
19 of 19

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 'The middle lamella is a layer mainly of calcium pectate', which directly identifies calcium (Ca) as the necessary element and distinguishes it from the other options.

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Question text is reproduced from the published NEET 2001 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.