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ATP is involved in both sliding filament...

ATP is involved in both sliding filament mechanism and in the maintenance of calcium pump.

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**Step-by-Step Solution:** 1. **Understanding Muscle Contraction**: Muscle contraction is primarily driven by the sliding filament mechanism, which involves the interaction between actin and myosin filaments. 2. **Role of Calcium Ions**: The process begins with calcium ions (Ca²+) being released from the sarcoplasmic reticulum. These calcium ions bind to troponin, a protein complex associated with actin filaments. 3. **Exposure of Binding Sites**: When calcium binds to troponin, it causes a conformational change that exposes the active binding sites on actin filaments. This allows myosin heads to attach to these sites. ...
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Knowledge Check

  • The Hunsdiecker reaction is believed to proceed by a free radical mechanism and involves the formation of an acyl hypohalite. The major product is :

    A
    `Ph - CH = CH - undersetoverset(|)(CH_3) - Br`
    B
    `Ph - oversetunderset(|)(Br)(C ) H - CH = CH - CH_3`
    C
    `Ph - CH = oversetunderset(|)(Br)( C) - CH_2 -CH_3`
    D
    `P - CH = CH - undersetoverset(|)(CH_3)(C )H - CH_2 Br`

  • The Hunsdiecker reaction is believed to proceed by a free radical mechanism and involves the formation of an acyl hypohalite.

    A
    B
    C
    D

  • The Hunsdiecker reaction is believed to proceed by a free radical mechanism and involves the formation of an acyl hypohalite. The rate determining step is :

    A
    Step I
    B
    Step II
    C
    Step III
    D
    Step IV
    • ICSE-LOCOMOTIONA ND MOVEMENT -TEST YOUR PROGRESS ( OBJECTIVE TYPE QUESTIONS ) (State whether the following statements are true or false .)
    1. ATP is involved in both sliding filament mechanism and in the maintena...

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    2. The strongest muscle in the body is present in the jaw.

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    3. A drop in the force of contraction after prolonged stimulation is know...

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    4. The only movable bone in the skull is the mandible that forms the lowe...

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    5. The functional unit of contractile system in the striped muscle is sar...

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    6. Involuntary muscles have no myosin or actin since they lack striations

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    7. Actin is actually a globular protein that assembles as a long beady st...

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    8. Intercalated discs make up striations in the skeletal muscle.

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    9. Cross bridges pull the actin chain as the myosin heads return to their...

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    10. In mammals, the cervical region of vertebral column always consists of...

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    11. Intervertbral disc is found in the vertebral column of

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    12. Knee joint and elbow joints are examples of ball and socket joint.

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    13. Macrophages and leucocytes exhibit

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    14. The muscles located in the inner walls of alimentary canal are striate...

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    15. Head of humerus bones articulates with glenoid cavity of pectoral gird...

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    16. Match the items of column 'A' with the alternatives given in column '...

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    17. Match the items of column 'A' with the alternatives given in column '...

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