Question

Select the incorrect statement w.r.t skeletal muscle fibre. Choose answer:
1. A single myofibril is made up of both thick and thin myofilaments
2. Myofibrils are arranged along the long axis of the muscle fibre
3.It stores calcium in sarcoplasmic reticulum
4. Z-line is a dark membrane which bisects A-band

Answer 1

Answer:

answer is 4

Explanation:

4 4 4 4 4 4 4 4 4 4 4 4 4

Answer 2

The incorrect statement is - 4. Z-line is a dark membrane which bisects A-band.

• One can see where actin and myosin filaments converge on any myofibril, in the frequently occurring dark bands, called Z lines.
• The area between two Z lines is called a sarcomer; the primary structural and functional unit of muscle tissue may be known as sarcomeres.
• The Z line bisects the I-bands. whereas the lighter band H-Band sits with every A band.