Question

Hey mates,

Please Explain

➡️Sliding filament theory ??

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Answer 1

At a very basic level each muscle fibre is made up of smaller fibres called myofibrils. These contain even smaller structures called actin and myosin filaments. These filaments slide in and out between each other to form a muscle contractions, hence called the sliding filament theory!

The diagram above shows part a myofibril called a sarcomere. This is the smallest unit of skeletal muscle that can contract. Sarcomeres repeat themselves over and over along the length of the myofibril.

Answer 2

$\underline{\underline{\Huge\mathfrak{Answer ;}}}$

Dear Aliya ,

Sliding Filament Theory ;-

• It describes the process by which muscles contract. 
• It is the explanation for how muscles contract to produce force. 
• Muscle fibres are made up of myofibrils. Myofibrils comprise of sarcomeres, containing actin and myosin.
• And in it the ATP binds to myosin heads causing the cross-bridge to be broken and once when the ATP is hydrolysed it can bind to another actin binding site, further down actin.
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@dmohit432