Source of $C a^{2 +}$ for muscle contraction is both sarcoplasmic (endoplasmic) reticulum as well as extracellular fluid in case of
a. Skeletal muscles
b. Smooth muscles
c. cardiac muscles

a only

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b and c only

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a and c only

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b only

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Solution

The correct option is B b and c only
Both smooth muscle and cardiac muscle utilise sarcoplasmic and extracellular fluid as source of calcium ion, which is in contrast to skeletal muscle which derive it from sarcoplasm only.
So, the correct option is 'b and c only'

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Similar questions

Q. If a muscle undergoes rapid contraction and relaxation, the sarcoplasmic reticulum extension

Q. During contraction of skeletal muscle

C a^{2 +}

bind to:

Question 20
The muscular tissue which functions throughout the life continuously without fatigue is

(a) Skeletal muscle
(b) Cardiac muscle
(c) Smooth muscle
(d) Voluntary muscle

Q. Question 8
Which muscles act involuntarily?
(i) Striated muscles
(ii) Smooth muscles
(iii) Cardiac muscles
(iv) Skeletal muscles

(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)

Q. Which of the following statements is/are correct?
i. Contraction of muscle is an active process.
ii. Relaxation of muscle is an active process.
iii. Calcium is stored in sarcoplasmic reticulum.

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Source of Ca2+ for muscle contraction is both sarcoplasmic (endoplasmic) reticulum as well as extracellular fluid in case ofa. Skeletal musclesb. Smooth musclesc. cardiac muscles

The correct option is B b and c onlyBoth smooth muscle and cardiac muscle utilise sarcoplasmic and extracellular fluid as source of calcium ion, which is in contrast to skeletal muscle which derive it from sarcoplasm only.So, the correct option is 'b and c only'

Source of $C a^{2 +}$ for muscle contraction is both sarcoplasmic (endoplasmic) reticulum as well as extracellular fluid in case of
a. Skeletal muscles
b. Smooth muscles
c. cardiac muscles

The correct option is B b and c only
Both smooth muscle and cardiac muscle utilise sarcoplasmic and extracellular fluid as source of calcium ion, which is in contrast to skeletal muscle which derive it from sarcoplasm only.
So, the correct option is 'b and c only'