C Nerve gases inhibit the enzyme acetylcholinesterase, causing the accumulation of acetylcholine at nerve-muscle junctions. This leads to uncontrolled muscle activity, twitching, convulsions, and can result in paralysis and death.
AMU-1998
Neural Control and Coordination
284558
Which one of the following does not act as a neurotrasmitter
1 Acetylcholine
2 Epinephrine
3 Norepinephrine
4 Cortisone
Explanation:
D Neurotransmitter are chemical messenger that transmit signals across synapse between nerve cells and other cell. These facilitate in communication within the nervous system. - Cortisone is a type of corticosteroid hormone produced by the adrenal glands. It plays a role in regulating various metabolic processes and the immune response, but it is not involved in transmitting signals between neurons.
JCECE-2014 / BCECE-2013
Neural Control and Coordination
284559
\(\mathrm{Na}^{+}, \mathrm{K}^{+}\)pump is found in membranes of many cells, like nerve cells. It work against electrochemical gradient and involve an integral protein ATP. For each molecule of ATP used
1 3 ions of \(\mathrm{Na}+\) pumped out and \(2 \mathrm{~K}^{+}\)are taken in
2 3 ions of \(\mathrm{Na}^{+}\)are taken in and \(2 \mathrm{~K}^{+}\)are pumped out
3 2 ion of \(\mathrm{Na}^{+}\)are thrown out and \(3 \mathrm{~K}^{+}\)are absorbed
4 3 ion of \(\mathrm{K}^{+}\)are absorbed and \(3 \mathrm{Na}^{+}\)are pumped out
Explanation:
A The \(\mathrm{Na}^{+} / \mathrm{K}^{+}\)pump moves three sodium ions \(\left(3 \mathrm{Na}^{+}\right)\)out of the cell and bring two potassium ions (2 \(\mathrm{K}^{+}\)) into the cell for each cycle. This helps maintain the cell's electrical balance and it is powered by ATP.
Manipal-2015
Neural Control and Coordination
284560
Saltatory conduction occurs in
1 Myelinated nerve fibres
2 Non-myelinated nerve fibres
3 Liver cells
4 All of the above
Explanation:
A Saltatory conduction refers to the rapid transmission of nerve impulses along myelinated nerve fibres. In myelinated fibres, the myelin sheath insulates and speeds up the conduction of the nerve impulse by allowing the signal to "jump" from one node of Ranvier to the next, rather than travelling along the entire length of the axon.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Neural Control and Coordination
284557
Nerve gas affect neuromuscular activity by
1 Blocking the acetylcholine receptor sites
2 Inhibiting the release of acetylcholine
3 Inhibiting acetylcholinesterase
4 Enhancing the release of acetylcholine.
Explanation:
C Nerve gases inhibit the enzyme acetylcholinesterase, causing the accumulation of acetylcholine at nerve-muscle junctions. This leads to uncontrolled muscle activity, twitching, convulsions, and can result in paralysis and death.
AMU-1998
Neural Control and Coordination
284558
Which one of the following does not act as a neurotrasmitter
1 Acetylcholine
2 Epinephrine
3 Norepinephrine
4 Cortisone
Explanation:
D Neurotransmitter are chemical messenger that transmit signals across synapse between nerve cells and other cell. These facilitate in communication within the nervous system. - Cortisone is a type of corticosteroid hormone produced by the adrenal glands. It plays a role in regulating various metabolic processes and the immune response, but it is not involved in transmitting signals between neurons.
JCECE-2014 / BCECE-2013
Neural Control and Coordination
284559
\(\mathrm{Na}^{+}, \mathrm{K}^{+}\)pump is found in membranes of many cells, like nerve cells. It work against electrochemical gradient and involve an integral protein ATP. For each molecule of ATP used
1 3 ions of \(\mathrm{Na}+\) pumped out and \(2 \mathrm{~K}^{+}\)are taken in
2 3 ions of \(\mathrm{Na}^{+}\)are taken in and \(2 \mathrm{~K}^{+}\)are pumped out
3 2 ion of \(\mathrm{Na}^{+}\)are thrown out and \(3 \mathrm{~K}^{+}\)are absorbed
4 3 ion of \(\mathrm{K}^{+}\)are absorbed and \(3 \mathrm{Na}^{+}\)are pumped out
Explanation:
A The \(\mathrm{Na}^{+} / \mathrm{K}^{+}\)pump moves three sodium ions \(\left(3 \mathrm{Na}^{+}\right)\)out of the cell and bring two potassium ions (2 \(\mathrm{K}^{+}\)) into the cell for each cycle. This helps maintain the cell's electrical balance and it is powered by ATP.
Manipal-2015
Neural Control and Coordination
284560
Saltatory conduction occurs in
1 Myelinated nerve fibres
2 Non-myelinated nerve fibres
3 Liver cells
4 All of the above
Explanation:
A Saltatory conduction refers to the rapid transmission of nerve impulses along myelinated nerve fibres. In myelinated fibres, the myelin sheath insulates and speeds up the conduction of the nerve impulse by allowing the signal to "jump" from one node of Ranvier to the next, rather than travelling along the entire length of the axon.
C Nerve gases inhibit the enzyme acetylcholinesterase, causing the accumulation of acetylcholine at nerve-muscle junctions. This leads to uncontrolled muscle activity, twitching, convulsions, and can result in paralysis and death.
AMU-1998
Neural Control and Coordination
284558
Which one of the following does not act as a neurotrasmitter
1 Acetylcholine
2 Epinephrine
3 Norepinephrine
4 Cortisone
Explanation:
D Neurotransmitter are chemical messenger that transmit signals across synapse between nerve cells and other cell. These facilitate in communication within the nervous system. - Cortisone is a type of corticosteroid hormone produced by the adrenal glands. It plays a role in regulating various metabolic processes and the immune response, but it is not involved in transmitting signals between neurons.
JCECE-2014 / BCECE-2013
Neural Control and Coordination
284559
\(\mathrm{Na}^{+}, \mathrm{K}^{+}\)pump is found in membranes of many cells, like nerve cells. It work against electrochemical gradient and involve an integral protein ATP. For each molecule of ATP used
1 3 ions of \(\mathrm{Na}+\) pumped out and \(2 \mathrm{~K}^{+}\)are taken in
2 3 ions of \(\mathrm{Na}^{+}\)are taken in and \(2 \mathrm{~K}^{+}\)are pumped out
3 2 ion of \(\mathrm{Na}^{+}\)are thrown out and \(3 \mathrm{~K}^{+}\)are absorbed
4 3 ion of \(\mathrm{K}^{+}\)are absorbed and \(3 \mathrm{Na}^{+}\)are pumped out
Explanation:
A The \(\mathrm{Na}^{+} / \mathrm{K}^{+}\)pump moves three sodium ions \(\left(3 \mathrm{Na}^{+}\right)\)out of the cell and bring two potassium ions (2 \(\mathrm{K}^{+}\)) into the cell for each cycle. This helps maintain the cell's electrical balance and it is powered by ATP.
Manipal-2015
Neural Control and Coordination
284560
Saltatory conduction occurs in
1 Myelinated nerve fibres
2 Non-myelinated nerve fibres
3 Liver cells
4 All of the above
Explanation:
A Saltatory conduction refers to the rapid transmission of nerve impulses along myelinated nerve fibres. In myelinated fibres, the myelin sheath insulates and speeds up the conduction of the nerve impulse by allowing the signal to "jump" from one node of Ranvier to the next, rather than travelling along the entire length of the axon.
C Nerve gases inhibit the enzyme acetylcholinesterase, causing the accumulation of acetylcholine at nerve-muscle junctions. This leads to uncontrolled muscle activity, twitching, convulsions, and can result in paralysis and death.
AMU-1998
Neural Control and Coordination
284558
Which one of the following does not act as a neurotrasmitter
1 Acetylcholine
2 Epinephrine
3 Norepinephrine
4 Cortisone
Explanation:
D Neurotransmitter are chemical messenger that transmit signals across synapse between nerve cells and other cell. These facilitate in communication within the nervous system. - Cortisone is a type of corticosteroid hormone produced by the adrenal glands. It plays a role in regulating various metabolic processes and the immune response, but it is not involved in transmitting signals between neurons.
JCECE-2014 / BCECE-2013
Neural Control and Coordination
284559
\(\mathrm{Na}^{+}, \mathrm{K}^{+}\)pump is found in membranes of many cells, like nerve cells. It work against electrochemical gradient and involve an integral protein ATP. For each molecule of ATP used
1 3 ions of \(\mathrm{Na}+\) pumped out and \(2 \mathrm{~K}^{+}\)are taken in
2 3 ions of \(\mathrm{Na}^{+}\)are taken in and \(2 \mathrm{~K}^{+}\)are pumped out
3 2 ion of \(\mathrm{Na}^{+}\)are thrown out and \(3 \mathrm{~K}^{+}\)are absorbed
4 3 ion of \(\mathrm{K}^{+}\)are absorbed and \(3 \mathrm{Na}^{+}\)are pumped out
Explanation:
A The \(\mathrm{Na}^{+} / \mathrm{K}^{+}\)pump moves three sodium ions \(\left(3 \mathrm{Na}^{+}\right)\)out of the cell and bring two potassium ions (2 \(\mathrm{K}^{+}\)) into the cell for each cycle. This helps maintain the cell's electrical balance and it is powered by ATP.
Manipal-2015
Neural Control and Coordination
284560
Saltatory conduction occurs in
1 Myelinated nerve fibres
2 Non-myelinated nerve fibres
3 Liver cells
4 All of the above
Explanation:
A Saltatory conduction refers to the rapid transmission of nerve impulses along myelinated nerve fibres. In myelinated fibres, the myelin sheath insulates and speeds up the conduction of the nerve impulse by allowing the signal to "jump" from one node of Ranvier to the next, rather than travelling along the entire length of the axon.
