NEET 1998 · Class 11

Locomotion and Movement

The functional unit of contractile system in striated muscle is

  1. (A)sarcomere
  2. (B)Z-band
  3. (C)cross bridges
  4. (D)myofibril

The NCERT line that answers it

Verbatim line

The portion of the myofibril between two successive 'Z' lines is considered as the functional unit of contraction and is called a sarcomere (Figure 17.2).

Chapter
Locomotion and Movement
Section
17.2 MUSCLE
Page
3
Words matched
25 of 25

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 portion of the myofibril between two successive 'Z' lines is considered as the functional unit of contraction and is called a sarcomere', which directly matches the MCQ's question and 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.

Take the free 5-minute checkMore from this chapter

Question text is reproduced from the published NEET 1998 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.