Write the differences between Actin and Myosin. - Biology

Write the differences between Actin and Myosin.

फरक स्पष्ट करा

	Actin	Myosin
1.	Found in both A and I bands.	Found exclusively in A band of sarcomere.
2.	Thinner (0.005 mm), but shorter (2-2.6 mm) than myosin filaments.	Thicker (0.01 mm) and longer (4.5 mm) than actin filaments.
3.	Cross bridges are absent, resulting in a smooth surface.	Cross bridges are present, resulting in a rough surface.
4.	They are more numerous than myosin filaments, with six surrounding each one.	Fewer than actin filaments.
5.	Free at one end and linked to the Z-line at the other end.	Free at both ends.
6.	Consists of three proteins: actin, tropomysin, and troponin.	Consists of two proteins: myosin and meromyosin.
7.	Slide into the H zone during muscule contraction.	Do not slide during muscle contractions.

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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?

Draw the diagram of a sarcomere of skeletal muscle showing different regions.

Define sliding filament theory of muscle contraction.

Write true or false. If false, change the statement so that it is true:

H-zone of striated muscle fibre represents both thick and thin filaments.

In a muscle fibre Ca⁺⁺is stored in ______.

Read the following statements.

Bands are dark bands and contain myosin
I bands are light bands and contain actin
During muscle contraction, the A band contracts.
The part between the two Z - lines is called a sarcomere.
The central part of the thin filament, not overlapped by the thick filament is called Hzone.

Of the above statements

Myoglobin occurs in

In a skeletal muscle, bundles of muscle fibres are held together by ______.

Match the following and mark the correct option

Which one of the following statement is incorrect?

Muscles with characteristic striations and involuntary are ______.