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Exchange of calcium between bone and extracellular fluid takes place under the influence of certain hormones. What will happen if more of Ca++ is in extracellular fluid? - Biology

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प्रश्न

Exchange of calcium between bone and extracellular fluid takes place under the influence of certain hormones. What will happen if more of Ca++ is in extracellular fluid?

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उत्तर

If more Ca++ is in the extracellular fluid then it will be accumulated on the bones under the influence of thyrocalcitonin (TCT).

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Mechanism of Muscle Contraction
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अध्याय 20: Locomotion and Movement - Exercises [पृष्ठ ११७]

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एनसीईआरटी एक्झांप्लर Biology [English] Class 11
अध्याय 20 Locomotion and Movement
Exercises | Q 3. a. | पृष्ठ ११७

संबंधित प्रश्न

Describe the important steps in muscle contraction.


Answer the following question.

How is the structure of sarcomere suitable for the contractility of the muscle? Explain its function according to sliding filament theory.


Answer the following question.

How does the structure of actin and myosin help in muscle contraction?


Name the filaments present in the sarcomere.


Explain the sliding-filament theory of muscle contraction.


Exchange of calcium between bone and extracellular fluid takes place under the influence of certain hormones. What will happen if very less amount of Ca++ is in the extracellular fluid?


Radha was running on a treadmill at a great speed for 15 minutes continuously. She stopped the treadmill and abruptly came out. For the next few minutes, she was breathing heavily/fast. Answer the following questions.

What happened to her muscles when she did strenuously exercised?


Radha was running on a treadmill at a great speed for 15 minutes continuously. She stopped the treadmill and abruptly came out. For the next few minutes, she was breathing heavily/fast. Answer the following questions.

How did her breathing rate change?


What is the source of energy for muscle contraction?


Calcium ion concentration in blood affects muscle contraction. Does it lead to tetany in certain cases? How will you correlate fluctuation in blood calcium with tetany?


Explain sliding filament theory of muscle contraction with neat sketches.


Discuss the role of Ca2+ ions in muscle contraction. Draw neat sketches to illustrate your answer.


How does a muscle shorten during its contraction and return to its original form during relaxation?


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