During muscular contraction,which of the following occurs?

In a resting state,the central part of the thick filaments not overlapped by thin filaments is called the .....

Which of the following interacts with skeletal muscles to produce movement?

Contraction of muscles is the best example of conversion of cellular energy into

Given below are two statements $:-$
Statement-$I$ :- Each organised skeletal muscle in human body is made of a number of fascicles,held together by a common connective tissue layer called fascia.
Statement-$II$ :- The portion of the myofibril between two successive '$Z$' lines is considered as the functional unit of muscle contraction,known as a sarcomere.
In the light of the above statements,choose the correct answer from the options given below $:-$

Red muscle fibres are rich in