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Locomotion and Movement

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12
Describe the structure of actin filament.

Action filament :

1. Each actin (thin) filament is made of two “F” (filamentous) actins helically wound to each other. Each ‘F’ actin is a polymer of monomelic ‘G’ (Globular) actins.

2. Two filaments of another protein, tropomyosin also run close to the ‘F’ actins throughout its length.

3. A complex protein troponin is distributed at regular intervals on the tropomyosin.

Describe the structure of actin filament.

Structure of thick and thin filaments

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Total number of pair of ribs?

12
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What is gout ?

Gout is the inflammation of joints due to accumulation of uric acid crystals. 
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What is the rib cage made of ?

The thoracic vertebrae, ribs and sternum together form the rib cage. 
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how many pairs of floating ribs are present in humns?

2
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Which pairs are called false ribs?

8th, 9th and 10th pairs of ribs are called as false ribs or vertebrondral ribs.
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