Which of the following is important for muscle contraction and nerve impulse transmission?

Ca²⁺ ions

Mg²⁺ ions

Both (a) and (b)

Fe²⁺ ions

Solution

Ca²⁺ ions

Ca²⁺ ions are essential for muscle contraction, neutro- muscular functions and nerve impulse transmission. During its transmission, impulse arrives at a synaptic knob, Ca²⁺ ions diffuse into the knobs from surrounding tissue fluid.

It basically triggers a process in which numerous synaptic vesicles fuse with the membrane of the knob and the areas of fusion break down, releasing the contents of vesicles into the fluid of synaptic clefts.

Some More Questions From Locomotion and Movement Chapter

Name the bones of the hand.

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Locomotion And Movement

Which of the following is important for muscle contraction and nerve impulse transmission?

Ca²⁺ ions

Mg²⁺ ions

Both (a) and (b)

Fe²⁺ ions

Some More Questions From Locomotion and Movement Chapter

Name the bones of the hand.

Name the bones of the legs.

Which substrate is concerned with the formation of lactic acid ?

Name the acid which brings fatigue?

What is tetany ?

What is sacrcomere ?

Locomotive organ in hydra?

What is muscular dystrophy ?

What is appendicular skeleton?

The bones which help in the articulation of the upper and the lower limbs.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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Email Address

Location

For Daily Free Study Material Join wiredfaculty

Locomotion And Movement

Which of the following is important for muscle contraction and nerve impulse transmission? Ca2+ ions Mg2+ ions Both (a) and (b) Fe2+ ions

Some More Questions From Locomotion and Movement Chapter

Name the bones of the hand.

Name the bones of the legs.

Which substrate is concerned with the formation of lactic acid ?

Name the acid which brings fatigue?

What is tetany ?

What is sacrcomere ?

Locomotive organ in hydra?

What is muscular dystrophy ?

What is appendicular skeleton?

The bones which help in the articulation of the upper and the lower limbs.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Which of the following is important for muscle contraction and nerve impulse transmission?

Ca²⁺ ions

Mg²⁺ ions

Both (a) and (b)

Fe²⁺ ions