284616
Which one of the following ion pairs is involved in nerve impulses?
1 \(\mathrm{Na}^{+}, \mathrm{K}\)
2 \(\mathrm{Na}^{+}, \mathrm{Cl}^{-}\)
3 \(\mathrm{K}^{+}, \mathrm{Cl}\)
4 \(\mathrm{K}^{+}, \mathrm{Ca}^{2+}\)
Explanation:
A A nerve impulse involved \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)ions where nerve cell (neurons) communicate with one another. Nerve impulses are generated by action potential. Sodium plays a vital role in our bodies. In partnership with another element, potassium, it acts like a chemical battery that powers our nerve impulses and muscle contraction. The action potential is the result of \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)ions moving in and out of the cell.
KVPY SB \& SX-2016
Neural Control and Coordination
284617
In motor neuron the impulse following in which direction?
1 In two direction
2 In one direction
3 In all direction
4 None of these
Explanation:
B Motor neuron impulses typically follow a unidirectional path, from the central neurons system to the muscles or glands they innervate. Synapses are small gaps between neurons or between a neuron and a muscle. They transmit information through chemical messengers called neurotransmitters. Though this is slower than electrical transmission, synapses ensure that a nerve impulse only travels in one direction.
MGIMS Wardha-2012
Neural Control and Coordination
284618
Which of the following statements characterizes the depolarization state of neuron?
1 \(\mathrm{Na}^{+}\)gets inside through channels
2 \(\mathrm{Na}^{+}\)gets outside through channels
3 \(\mathrm{K}^{+}\)channels remain open
4 All of the above
Explanation:
A \(\mathrm{Na}^{+}\)gets inside through ion channels. During depolarization, voltage-gated sodium \(\left(\mathrm{Na}^{+}\right)\)channels open, allowing \(\mathrm{Na}^{+}\)ions to flow into the neuron, which contributes to the depolarization of the membrane potential.
UP CPMT-2012
Neural Control and Coordination
284619
Brain receives and sends signals in the form of:
1 Electrical impulses
2 Chemical impulses
3 Magnetic impulses
4 Electromagnetic impulses
Explanation:
A Brain receives and sends signals in the form of electrical impulses along with nerve fibre, it consist of a wave of electrical depolarization that caused the resting potential difference across the nerve cell membranes.
284616
Which one of the following ion pairs is involved in nerve impulses?
1 \(\mathrm{Na}^{+}, \mathrm{K}\)
2 \(\mathrm{Na}^{+}, \mathrm{Cl}^{-}\)
3 \(\mathrm{K}^{+}, \mathrm{Cl}\)
4 \(\mathrm{K}^{+}, \mathrm{Ca}^{2+}\)
Explanation:
A A nerve impulse involved \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)ions where nerve cell (neurons) communicate with one another. Nerve impulses are generated by action potential. Sodium plays a vital role in our bodies. In partnership with another element, potassium, it acts like a chemical battery that powers our nerve impulses and muscle contraction. The action potential is the result of \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)ions moving in and out of the cell.
KVPY SB \& SX-2016
Neural Control and Coordination
284617
In motor neuron the impulse following in which direction?
1 In two direction
2 In one direction
3 In all direction
4 None of these
Explanation:
B Motor neuron impulses typically follow a unidirectional path, from the central neurons system to the muscles or glands they innervate. Synapses are small gaps between neurons or between a neuron and a muscle. They transmit information through chemical messengers called neurotransmitters. Though this is slower than electrical transmission, synapses ensure that a nerve impulse only travels in one direction.
MGIMS Wardha-2012
Neural Control and Coordination
284618
Which of the following statements characterizes the depolarization state of neuron?
1 \(\mathrm{Na}^{+}\)gets inside through channels
2 \(\mathrm{Na}^{+}\)gets outside through channels
3 \(\mathrm{K}^{+}\)channels remain open
4 All of the above
Explanation:
A \(\mathrm{Na}^{+}\)gets inside through ion channels. During depolarization, voltage-gated sodium \(\left(\mathrm{Na}^{+}\right)\)channels open, allowing \(\mathrm{Na}^{+}\)ions to flow into the neuron, which contributes to the depolarization of the membrane potential.
UP CPMT-2012
Neural Control and Coordination
284619
Brain receives and sends signals in the form of:
1 Electrical impulses
2 Chemical impulses
3 Magnetic impulses
4 Electromagnetic impulses
Explanation:
A Brain receives and sends signals in the form of electrical impulses along with nerve fibre, it consist of a wave of electrical depolarization that caused the resting potential difference across the nerve cell membranes.
284616
Which one of the following ion pairs is involved in nerve impulses?
1 \(\mathrm{Na}^{+}, \mathrm{K}\)
2 \(\mathrm{Na}^{+}, \mathrm{Cl}^{-}\)
3 \(\mathrm{K}^{+}, \mathrm{Cl}\)
4 \(\mathrm{K}^{+}, \mathrm{Ca}^{2+}\)
Explanation:
A A nerve impulse involved \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)ions where nerve cell (neurons) communicate with one another. Nerve impulses are generated by action potential. Sodium plays a vital role in our bodies. In partnership with another element, potassium, it acts like a chemical battery that powers our nerve impulses and muscle contraction. The action potential is the result of \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)ions moving in and out of the cell.
KVPY SB \& SX-2016
Neural Control and Coordination
284617
In motor neuron the impulse following in which direction?
1 In two direction
2 In one direction
3 In all direction
4 None of these
Explanation:
B Motor neuron impulses typically follow a unidirectional path, from the central neurons system to the muscles or glands they innervate. Synapses are small gaps between neurons or between a neuron and a muscle. They transmit information through chemical messengers called neurotransmitters. Though this is slower than electrical transmission, synapses ensure that a nerve impulse only travels in one direction.
MGIMS Wardha-2012
Neural Control and Coordination
284618
Which of the following statements characterizes the depolarization state of neuron?
1 \(\mathrm{Na}^{+}\)gets inside through channels
2 \(\mathrm{Na}^{+}\)gets outside through channels
3 \(\mathrm{K}^{+}\)channels remain open
4 All of the above
Explanation:
A \(\mathrm{Na}^{+}\)gets inside through ion channels. During depolarization, voltage-gated sodium \(\left(\mathrm{Na}^{+}\right)\)channels open, allowing \(\mathrm{Na}^{+}\)ions to flow into the neuron, which contributes to the depolarization of the membrane potential.
UP CPMT-2012
Neural Control and Coordination
284619
Brain receives and sends signals in the form of:
1 Electrical impulses
2 Chemical impulses
3 Magnetic impulses
4 Electromagnetic impulses
Explanation:
A Brain receives and sends signals in the form of electrical impulses along with nerve fibre, it consist of a wave of electrical depolarization that caused the resting potential difference across the nerve cell membranes.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Neural Control and Coordination
284616
Which one of the following ion pairs is involved in nerve impulses?
1 \(\mathrm{Na}^{+}, \mathrm{K}\)
2 \(\mathrm{Na}^{+}, \mathrm{Cl}^{-}\)
3 \(\mathrm{K}^{+}, \mathrm{Cl}\)
4 \(\mathrm{K}^{+}, \mathrm{Ca}^{2+}\)
Explanation:
A A nerve impulse involved \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)ions where nerve cell (neurons) communicate with one another. Nerve impulses are generated by action potential. Sodium plays a vital role in our bodies. In partnership with another element, potassium, it acts like a chemical battery that powers our nerve impulses and muscle contraction. The action potential is the result of \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)ions moving in and out of the cell.
KVPY SB \& SX-2016
Neural Control and Coordination
284617
In motor neuron the impulse following in which direction?
1 In two direction
2 In one direction
3 In all direction
4 None of these
Explanation:
B Motor neuron impulses typically follow a unidirectional path, from the central neurons system to the muscles or glands they innervate. Synapses are small gaps between neurons or between a neuron and a muscle. They transmit information through chemical messengers called neurotransmitters. Though this is slower than electrical transmission, synapses ensure that a nerve impulse only travels in one direction.
MGIMS Wardha-2012
Neural Control and Coordination
284618
Which of the following statements characterizes the depolarization state of neuron?
1 \(\mathrm{Na}^{+}\)gets inside through channels
2 \(\mathrm{Na}^{+}\)gets outside through channels
3 \(\mathrm{K}^{+}\)channels remain open
4 All of the above
Explanation:
A \(\mathrm{Na}^{+}\)gets inside through ion channels. During depolarization, voltage-gated sodium \(\left(\mathrm{Na}^{+}\right)\)channels open, allowing \(\mathrm{Na}^{+}\)ions to flow into the neuron, which contributes to the depolarization of the membrane potential.
UP CPMT-2012
Neural Control and Coordination
284619
Brain receives and sends signals in the form of:
1 Electrical impulses
2 Chemical impulses
3 Magnetic impulses
4 Electromagnetic impulses
Explanation:
A Brain receives and sends signals in the form of electrical impulses along with nerve fibre, it consist of a wave of electrical depolarization that caused the resting potential difference across the nerve cell membranes.
