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Elenna [48]
3 years ago
14

Which of the following statements is the most accurate description of the sliding filament mechanism?

Biology
1 answer:
pav-90 [236]3 years ago
7 0

Answer:

c) thin filaments slide past thick filaments towards the M line

Explanation:

Each muscle fiber has many myofibrils composed of many sarcomeres which have thick and thin filaments. Thick filaments are made of myosin protein whereas thin filaments have actin protein. There are various bands and zones in a sarcomere like A band, I band etc. H zone consists of only thick filaments. It has a central vertical line called as M line where the accessory proteins hold together the thick filaments.

According to sliding filament mechanism, sarcomere must shorten for muscle to contract. However sarcomere shortening is not caused due to shortening of thick and thin filaments. Instead they slide over each other towards the M line which leads to shortening of sarcomere without changing the length of filaments. The sliding is caused by forming of cross bridges between actin and myosin proteins.

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Explanation:

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5 0
2 years ago
What is the purpose of degerming? Does it completely eliminate microbes?
madam [21]

Answer:

Explanation:

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3 0
3 years ago
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astraxan [27]

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5 0
2 years ago
An allosteric protein would be expected to
Mumz [18]

Answer:

All of the above.

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7 0
3 years ago
Choisis la meilleure fin pour chaque phrase.
lara31 [8.8K]
Je ne peux pas vraiment expliquer la réponse en raison de votre question confuse, mais voici une note pour faire des questions non confuses la prochaine fois
7 0
3 years ago
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