Over lapping of thick filament occurs in:
Correct answer: A. A-Band
- A. A-Band
- B. M-line
- C. I-band
- D. Z-line
Explanation
The A-band is a region within a sarcomere, which is the basic functional unit of a muscle fiber. The A-band corresponds to the area where thick filaments (composed mainly of myosin) are found. It extends from one end of the thick filament to the other and includes the overlap between thick and thin filaments. The overlapping of thick filaments with thin filaments occurs within the A-band, making it the correct option.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Support and Movement
Support and movement covers the axial and appendicular skeleton, bone structure, joints and the arrangement of skeletal muscles. Muscle contraction is explained through actin, myosin, sliding filaments, calcium ions and ATP, while arthritis is distinguished as a disorder of joints rather than a normal part of movement.
Practise Support and Movement
738 free Support and Movement MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Support and Movement questions
The sarcolemma of muscle fibers fold inwards and form system of tubes which runs through the sarcoplasm called:
A sarcomere is the region of a myofibril between two successive:
The point of attachment of the nerve to the muscle is called a _ junction.
Each muscle fiber contains long threads that extend along its entire length. These are called as:
The microtubules in the cytoskeleton are made up of protein:
The functional unit of a muscle is known as _