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प्रश्न
In a muscle fibre Ca++ is stored in ______.
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उत्तर
In a muscle fibre, Ca++ is stored in sarcoplasmic reticulum.
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संबंधित प्रश्न
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:
Actin is present in thin filament
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.
Write the differences between Actin and Myosin.
Write the difference between:
Red and White muscles
Thin filament of myofibril contains 2 ‘F’ actins and two other proteins namely ______ and ______.
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 ______.
Which of the following statements wrongly represents the nature of smooth muscle?
Match the following and mark the correct option
| Column I | Column II |
| A. Fast muscle fibres | i. Myoglobin |
| B. Slow muscle fibres | ii. Lactic acid |
| C. Actin filament | iii. Contractile unit |
| D. Sarcomere | iv. I-band |
Which one of the following statement is incorrect?
Sarcolemma, sarcoplasm and sarcoplasmic reticulum refer to a particular type of cell in our body. Which is this cell and to what parts of that cell do these names refer to?
Three types of muscles are given as a, b and c. Identify the correct matching pair along with their location in human body:
Name of muscle/location
