285058
Which of the following options correctly represents the name of $1,2,3$ and 4 is the given diagram of neuron?
1 1-Axon, 2-Dendrites, 3-Node of Ranvier, 4-Myelin sheath
2 1-Dendrites, 2-Axon, 3-Node of Ranvier, 4-Myelin sheath
3 1-Dendrites, 2-Cell body, 3-Myelin sheath, 4-Node of Ranvier
4 1-Axon, 2-Cell body, 3-Dendrites, 4-Node of Ranvier
Explanation:
(c) In the given diagram of neuron, the part marked as I, II, III and IV are respectively dendrites, cell body, myelin sheath and nodes of Ranvier. Neuron is a specialized, impulse-conducting cell that is the functional unit of the nervous system, consisting of the cell body and its processes, the axon and dendrites.
NCERT Page-317 / N-232
Neural Control and Coordination
285043
Identify the correct match of types of neurons with its location.
1 (i) & (ii) only
2 (i) & (iii) only
3 (ii) & (iii) only
4 All the three.
Explanation:
(c) Bipolar neurons is a type of neuron which has two extensions - one axon and one dendrite. Bipolar cells are specialized sensory neurons for the transmission of special senses. As such, they are part of the sensory pathways for smell, sight, taste, hearing and vestibular functions. They are found in the retina of eye.
NCERT Page-317 / N-232
Neural Control and Coordination
285044
A bipolar neuron has
1 2 dendrites and1 axon
2 2 axons and1 dendrite
3 1 dendrite and1 axon
4 2 axons and2 dendrites
Explanation:
(c) A bipolar neuron has one dendrite and one axon. It is found in the retina of eye.
NCERT Page-317 / N-232
Neural Control and Coordination
285045
Sodium-Potassium pump across membrane, actively transports
1 $2\text{Na}$ ions outwards and $3\text{K}$ ions into the cell.
2 $3\text{Na}$ ions outwards and $2\text{K}$ ions into the cell.
3 $2\text{K}$ ions outwards and $3\text{Na}$ ions into the cell.
4 $3\text{K}$ ions outwards and $2\text{Na}$ ions into the cell.
Explanation:
(b) The ionic concentration gradients across the resting membrane are maintained by active transport of ions by sodium-potassium pump which transports $3\text{Na}+$ outwards for $2{{\text{K}}^{+}}$into the cell.
NCERT Page-317 / N-232
Neural Control and Coordination
285046
During conduction of nerve impulse
1 $\text{N}{{\text{a}}^{+}}$moves into axoplasm
2 $\text{N}{{\text{a}}^{+}}$moves out of axoplasm
3 ${{\text{K}}^{+}}$moves into axoplasm
4 $\text{C}{{\text{a}}^{++}}$moves into axoplasm
Explanation:
(a) During conduction of nerve impulse, $\text{N}{{\text{a}}^{+}}$moves into the axoplasm. Axoplasm is a jelly like substance that contains both inorganic and organic matter in a axon. For an inactive neuron, the axoplasm has an overall negative charge. This is because proteins, amino acids, phosphates, and other negatively-charged entities inside the cell cannot cross the selectively-permeable cell membrane. Two types of positively-charged ions, potassium $\left( {{\text{K}}^{+}} \right.$) and sodium $\left( \text{N}{{\text{a}}^{+}} \right)$, can cross the cell membrane through selective ion channels. Normally there are more potassium ions inside the cell than outside, whereas there are more sodium ions outside the cell than inside.
285058
Which of the following options correctly represents the name of $1,2,3$ and 4 is the given diagram of neuron?
1 1-Axon, 2-Dendrites, 3-Node of Ranvier, 4-Myelin sheath
2 1-Dendrites, 2-Axon, 3-Node of Ranvier, 4-Myelin sheath
3 1-Dendrites, 2-Cell body, 3-Myelin sheath, 4-Node of Ranvier
4 1-Axon, 2-Cell body, 3-Dendrites, 4-Node of Ranvier
Explanation:
(c) In the given diagram of neuron, the part marked as I, II, III and IV are respectively dendrites, cell body, myelin sheath and nodes of Ranvier. Neuron is a specialized, impulse-conducting cell that is the functional unit of the nervous system, consisting of the cell body and its processes, the axon and dendrites.
NCERT Page-317 / N-232
Neural Control and Coordination
285043
Identify the correct match of types of neurons with its location.
1 (i) & (ii) only
2 (i) & (iii) only
3 (ii) & (iii) only
4 All the three.
Explanation:
(c) Bipolar neurons is a type of neuron which has two extensions - one axon and one dendrite. Bipolar cells are specialized sensory neurons for the transmission of special senses. As such, they are part of the sensory pathways for smell, sight, taste, hearing and vestibular functions. They are found in the retina of eye.
NCERT Page-317 / N-232
Neural Control and Coordination
285044
A bipolar neuron has
1 2 dendrites and1 axon
2 2 axons and1 dendrite
3 1 dendrite and1 axon
4 2 axons and2 dendrites
Explanation:
(c) A bipolar neuron has one dendrite and one axon. It is found in the retina of eye.
NCERT Page-317 / N-232
Neural Control and Coordination
285045
Sodium-Potassium pump across membrane, actively transports
1 $2\text{Na}$ ions outwards and $3\text{K}$ ions into the cell.
2 $3\text{Na}$ ions outwards and $2\text{K}$ ions into the cell.
3 $2\text{K}$ ions outwards and $3\text{Na}$ ions into the cell.
4 $3\text{K}$ ions outwards and $2\text{Na}$ ions into the cell.
Explanation:
(b) The ionic concentration gradients across the resting membrane are maintained by active transport of ions by sodium-potassium pump which transports $3\text{Na}+$ outwards for $2{{\text{K}}^{+}}$into the cell.
NCERT Page-317 / N-232
Neural Control and Coordination
285046
During conduction of nerve impulse
1 $\text{N}{{\text{a}}^{+}}$moves into axoplasm
2 $\text{N}{{\text{a}}^{+}}$moves out of axoplasm
3 ${{\text{K}}^{+}}$moves into axoplasm
4 $\text{C}{{\text{a}}^{++}}$moves into axoplasm
Explanation:
(a) During conduction of nerve impulse, $\text{N}{{\text{a}}^{+}}$moves into the axoplasm. Axoplasm is a jelly like substance that contains both inorganic and organic matter in a axon. For an inactive neuron, the axoplasm has an overall negative charge. This is because proteins, amino acids, phosphates, and other negatively-charged entities inside the cell cannot cross the selectively-permeable cell membrane. Two types of positively-charged ions, potassium $\left( {{\text{K}}^{+}} \right.$) and sodium $\left( \text{N}{{\text{a}}^{+}} \right)$, can cross the cell membrane through selective ion channels. Normally there are more potassium ions inside the cell than outside, whereas there are more sodium ions outside the cell than inside.
285058
Which of the following options correctly represents the name of $1,2,3$ and 4 is the given diagram of neuron?
1 1-Axon, 2-Dendrites, 3-Node of Ranvier, 4-Myelin sheath
2 1-Dendrites, 2-Axon, 3-Node of Ranvier, 4-Myelin sheath
3 1-Dendrites, 2-Cell body, 3-Myelin sheath, 4-Node of Ranvier
4 1-Axon, 2-Cell body, 3-Dendrites, 4-Node of Ranvier
Explanation:
(c) In the given diagram of neuron, the part marked as I, II, III and IV are respectively dendrites, cell body, myelin sheath and nodes of Ranvier. Neuron is a specialized, impulse-conducting cell that is the functional unit of the nervous system, consisting of the cell body and its processes, the axon and dendrites.
NCERT Page-317 / N-232
Neural Control and Coordination
285043
Identify the correct match of types of neurons with its location.
1 (i) & (ii) only
2 (i) & (iii) only
3 (ii) & (iii) only
4 All the three.
Explanation:
(c) Bipolar neurons is a type of neuron which has two extensions - one axon and one dendrite. Bipolar cells are specialized sensory neurons for the transmission of special senses. As such, they are part of the sensory pathways for smell, sight, taste, hearing and vestibular functions. They are found in the retina of eye.
NCERT Page-317 / N-232
Neural Control and Coordination
285044
A bipolar neuron has
1 2 dendrites and1 axon
2 2 axons and1 dendrite
3 1 dendrite and1 axon
4 2 axons and2 dendrites
Explanation:
(c) A bipolar neuron has one dendrite and one axon. It is found in the retina of eye.
NCERT Page-317 / N-232
Neural Control and Coordination
285045
Sodium-Potassium pump across membrane, actively transports
1 $2\text{Na}$ ions outwards and $3\text{K}$ ions into the cell.
2 $3\text{Na}$ ions outwards and $2\text{K}$ ions into the cell.
3 $2\text{K}$ ions outwards and $3\text{Na}$ ions into the cell.
4 $3\text{K}$ ions outwards and $2\text{Na}$ ions into the cell.
Explanation:
(b) The ionic concentration gradients across the resting membrane are maintained by active transport of ions by sodium-potassium pump which transports $3\text{Na}+$ outwards for $2{{\text{K}}^{+}}$into the cell.
NCERT Page-317 / N-232
Neural Control and Coordination
285046
During conduction of nerve impulse
1 $\text{N}{{\text{a}}^{+}}$moves into axoplasm
2 $\text{N}{{\text{a}}^{+}}$moves out of axoplasm
3 ${{\text{K}}^{+}}$moves into axoplasm
4 $\text{C}{{\text{a}}^{++}}$moves into axoplasm
Explanation:
(a) During conduction of nerve impulse, $\text{N}{{\text{a}}^{+}}$moves into the axoplasm. Axoplasm is a jelly like substance that contains both inorganic and organic matter in a axon. For an inactive neuron, the axoplasm has an overall negative charge. This is because proteins, amino acids, phosphates, and other negatively-charged entities inside the cell cannot cross the selectively-permeable cell membrane. Two types of positively-charged ions, potassium $\left( {{\text{K}}^{+}} \right.$) and sodium $\left( \text{N}{{\text{a}}^{+}} \right)$, can cross the cell membrane through selective ion channels. Normally there are more potassium ions inside the cell than outside, whereas there are more sodium ions outside the cell than inside.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Neural Control and Coordination
285058
Which of the following options correctly represents the name of $1,2,3$ and 4 is the given diagram of neuron?
1 1-Axon, 2-Dendrites, 3-Node of Ranvier, 4-Myelin sheath
2 1-Dendrites, 2-Axon, 3-Node of Ranvier, 4-Myelin sheath
3 1-Dendrites, 2-Cell body, 3-Myelin sheath, 4-Node of Ranvier
4 1-Axon, 2-Cell body, 3-Dendrites, 4-Node of Ranvier
Explanation:
(c) In the given diagram of neuron, the part marked as I, II, III and IV are respectively dendrites, cell body, myelin sheath and nodes of Ranvier. Neuron is a specialized, impulse-conducting cell that is the functional unit of the nervous system, consisting of the cell body and its processes, the axon and dendrites.
NCERT Page-317 / N-232
Neural Control and Coordination
285043
Identify the correct match of types of neurons with its location.
1 (i) & (ii) only
2 (i) & (iii) only
3 (ii) & (iii) only
4 All the three.
Explanation:
(c) Bipolar neurons is a type of neuron which has two extensions - one axon and one dendrite. Bipolar cells are specialized sensory neurons for the transmission of special senses. As such, they are part of the sensory pathways for smell, sight, taste, hearing and vestibular functions. They are found in the retina of eye.
NCERT Page-317 / N-232
Neural Control and Coordination
285044
A bipolar neuron has
1 2 dendrites and1 axon
2 2 axons and1 dendrite
3 1 dendrite and1 axon
4 2 axons and2 dendrites
Explanation:
(c) A bipolar neuron has one dendrite and one axon. It is found in the retina of eye.
NCERT Page-317 / N-232
Neural Control and Coordination
285045
Sodium-Potassium pump across membrane, actively transports
1 $2\text{Na}$ ions outwards and $3\text{K}$ ions into the cell.
2 $3\text{Na}$ ions outwards and $2\text{K}$ ions into the cell.
3 $2\text{K}$ ions outwards and $3\text{Na}$ ions into the cell.
4 $3\text{K}$ ions outwards and $2\text{Na}$ ions into the cell.
Explanation:
(b) The ionic concentration gradients across the resting membrane are maintained by active transport of ions by sodium-potassium pump which transports $3\text{Na}+$ outwards for $2{{\text{K}}^{+}}$into the cell.
NCERT Page-317 / N-232
Neural Control and Coordination
285046
During conduction of nerve impulse
1 $\text{N}{{\text{a}}^{+}}$moves into axoplasm
2 $\text{N}{{\text{a}}^{+}}$moves out of axoplasm
3 ${{\text{K}}^{+}}$moves into axoplasm
4 $\text{C}{{\text{a}}^{++}}$moves into axoplasm
Explanation:
(a) During conduction of nerve impulse, $\text{N}{{\text{a}}^{+}}$moves into the axoplasm. Axoplasm is a jelly like substance that contains both inorganic and organic matter in a axon. For an inactive neuron, the axoplasm has an overall negative charge. This is because proteins, amino acids, phosphates, and other negatively-charged entities inside the cell cannot cross the selectively-permeable cell membrane. Two types of positively-charged ions, potassium $\left( {{\text{K}}^{+}} \right.$) and sodium $\left( \text{N}{{\text{a}}^{+}} \right)$, can cross the cell membrane through selective ion channels. Normally there are more potassium ions inside the cell than outside, whereas there are more sodium ions outside the cell than inside.
285058
Which of the following options correctly represents the name of $1,2,3$ and 4 is the given diagram of neuron?
1 1-Axon, 2-Dendrites, 3-Node of Ranvier, 4-Myelin sheath
2 1-Dendrites, 2-Axon, 3-Node of Ranvier, 4-Myelin sheath
3 1-Dendrites, 2-Cell body, 3-Myelin sheath, 4-Node of Ranvier
4 1-Axon, 2-Cell body, 3-Dendrites, 4-Node of Ranvier
Explanation:
(c) In the given diagram of neuron, the part marked as I, II, III and IV are respectively dendrites, cell body, myelin sheath and nodes of Ranvier. Neuron is a specialized, impulse-conducting cell that is the functional unit of the nervous system, consisting of the cell body and its processes, the axon and dendrites.
NCERT Page-317 / N-232
Neural Control and Coordination
285043
Identify the correct match of types of neurons with its location.
1 (i) & (ii) only
2 (i) & (iii) only
3 (ii) & (iii) only
4 All the three.
Explanation:
(c) Bipolar neurons is a type of neuron which has two extensions - one axon and one dendrite. Bipolar cells are specialized sensory neurons for the transmission of special senses. As such, they are part of the sensory pathways for smell, sight, taste, hearing and vestibular functions. They are found in the retina of eye.
NCERT Page-317 / N-232
Neural Control and Coordination
285044
A bipolar neuron has
1 2 dendrites and1 axon
2 2 axons and1 dendrite
3 1 dendrite and1 axon
4 2 axons and2 dendrites
Explanation:
(c) A bipolar neuron has one dendrite and one axon. It is found in the retina of eye.
NCERT Page-317 / N-232
Neural Control and Coordination
285045
Sodium-Potassium pump across membrane, actively transports
1 $2\text{Na}$ ions outwards and $3\text{K}$ ions into the cell.
2 $3\text{Na}$ ions outwards and $2\text{K}$ ions into the cell.
3 $2\text{K}$ ions outwards and $3\text{Na}$ ions into the cell.
4 $3\text{K}$ ions outwards and $2\text{Na}$ ions into the cell.
Explanation:
(b) The ionic concentration gradients across the resting membrane are maintained by active transport of ions by sodium-potassium pump which transports $3\text{Na}+$ outwards for $2{{\text{K}}^{+}}$into the cell.
NCERT Page-317 / N-232
Neural Control and Coordination
285046
During conduction of nerve impulse
1 $\text{N}{{\text{a}}^{+}}$moves into axoplasm
2 $\text{N}{{\text{a}}^{+}}$moves out of axoplasm
3 ${{\text{K}}^{+}}$moves into axoplasm
4 $\text{C}{{\text{a}}^{++}}$moves into axoplasm
Explanation:
(a) During conduction of nerve impulse, $\text{N}{{\text{a}}^{+}}$moves into the axoplasm. Axoplasm is a jelly like substance that contains both inorganic and organic matter in a axon. For an inactive neuron, the axoplasm has an overall negative charge. This is because proteins, amino acids, phosphates, and other negatively-charged entities inside the cell cannot cross the selectively-permeable cell membrane. Two types of positively-charged ions, potassium $\left( {{\text{K}}^{+}} \right.$) and sodium $\left( \text{N}{{\text{a}}^{+}} \right)$, can cross the cell membrane through selective ion channels. Normally there are more potassium ions inside the cell than outside, whereas there are more sodium ions outside the cell than inside.
