Actin filament is made up of - Vidyadip

MCQ

Actin filament is made up of

✓
Actin, troponin and tropomyosin
B
Actin, troponin
C
Myosin, troponin
D
Actin, tropomyosin

✓

Answer

Correct option: A.

Actin, troponin and tropomyosin

a
(a) One thin filament probably contains $300-400$ actin molecules about $50$ tropomyosin and $50$ troponin.

It is said that tropomyosin plays a vital role in sensitizing the contractile proteins $(actin\ and\ myosin) $ to calcium ions.

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