Sponsor Area

Locomotion And Movement

Question
CBSEENBI11003556

Select the correct option regarding A, B and C.

  • A-Tropomyosin-runs close to F-actin throughout its length

  • B-Troponin-complex protein distributed at regular interval of tropomyosin

  • C-F actin-polymer of monomeric G-actin helically bound to each other

  • None of these

Solution

C.

C-F actin-polymer of monomeric G-actin helically bound to each other

A - Troponin
B - Tropomyosin
C - F-actin

Two filaments of protein tropomyosin run close to F-actins throughout its length. A complex protein troponin is distributed at regular intervals on the tropomyosin. In the resting state, a subunit of troponin masks the active binding sites for myosin on the actin filaments.