Teaching OSSSC TGT Teachers Mock Test Series 2025 Biology Human Physiology Muscle and Skeletal System
What is the functional significance of the Z-line in a muscle fiber?
1
It serves as a connection between actin and myosin filaments.
2
It attaches to the M-line to stabilize the sarcomere.
3
It marks the boundary of a sarcomere, anchoring actin filaments.
4
It is where the calcium ions are stored for muscle contraction.