Question

Krause's membrane or Z-line is a myofibril, which separates two adjacent

• A. Sarcomeres
• B. H-zones
• C. I-bands
• D. A-bands

Answer 1

Answer: (A)

Sarcomeres

Krause membrane is one of the isotropic cross bands in striated muscle fibre, that consists of disks of sarcoplasm linking the individual fibrils. The sarcomeres are separated from each other by a very fine dark line as Krause's membrane, which extends not only on individual fibrillae, but across the sarcoplasm between the fibrillae of the fibre.
Thus, the correct answer is option A.