285061
During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?
1 First positive, then negative and again back to positive.
2 First negative, then positive and again back to negative.
3 First positive, then negative and continue to be negative.
4 First negative, then positive and continue to be positive.
Explanation:
(b)
NCERT Page-317
Neural Control and Coordination
285062
In a nerve if sodium pump is blocked, which of the following is most likely to happen?
1 $\text{N}{{\text{a}}^{+}}$and ${{\text{K}}^{+}}$will increases outside the cell.
2 $\text{N}{{\text{a}}^{+}}$outside the nerve will increase.
3 $\text{N}{{\text{a}}^{+}}$inside the nerve will increase.
4 ${{\text{K}}^{+}}$inside the nerve will increase.
Explanation:
(c) The ionic concentration gradients across the resting membrane are maintained by active transport of ions by sodium-potassium pump which transports $3\text{N}{{\text{a}}^{+}}$ outwards for $2{{\text{K}}^{+}}$into the cell. Hence, if sodium pump is blocked, sodium inside the nerve will increase.
NCERT Page-317 / N-232
Neural Control and Coordination
285063
During resting stage the axonal membrane is
1 Impermeable to both cations and anions
2 Permeable to anions and impermeable to cations
3 More permeable to${{\text{K}}^{+}}$ions and nearly impermeable to $\text{N}{{\text{a}}^{+}}$ions
4 None of these
Explanation:
(c) Dfuring resting stage the axonal membrane is more permeable to ${{\text{K}}^{+}}$ions and nearly impermeable to $\text{N}{{\text{a}}^{+}}$ions.
NCERT Page-317
Neural Control and Coordination
285064
Mark the correct statement
1 Electrical synapses are more common in our neural system than chemical synapses
2 The new potential in post synaptic neuron may be either excitatory or inhibitory
3 Hypothalamus is the major coordinationcentre for sensory and motor signaling
4 The tracts of nervefibres that connect two cerebral hemispheres are called corpora bigemina
Explanation:
(b) The new potential in post synaptic neuron may be either excitatory or inhibitory.
285061
During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?
1 First positive, then negative and again back to positive.
2 First negative, then positive and again back to negative.
3 First positive, then negative and continue to be negative.
4 First negative, then positive and continue to be positive.
Explanation:
(b)
NCERT Page-317
Neural Control and Coordination
285062
In a nerve if sodium pump is blocked, which of the following is most likely to happen?
1 $\text{N}{{\text{a}}^{+}}$and ${{\text{K}}^{+}}$will increases outside the cell.
2 $\text{N}{{\text{a}}^{+}}$outside the nerve will increase.
3 $\text{N}{{\text{a}}^{+}}$inside the nerve will increase.
4 ${{\text{K}}^{+}}$inside the nerve will increase.
Explanation:
(c) The ionic concentration gradients across the resting membrane are maintained by active transport of ions by sodium-potassium pump which transports $3\text{N}{{\text{a}}^{+}}$ outwards for $2{{\text{K}}^{+}}$into the cell. Hence, if sodium pump is blocked, sodium inside the nerve will increase.
NCERT Page-317 / N-232
Neural Control and Coordination
285063
During resting stage the axonal membrane is
1 Impermeable to both cations and anions
2 Permeable to anions and impermeable to cations
3 More permeable to${{\text{K}}^{+}}$ions and nearly impermeable to $\text{N}{{\text{a}}^{+}}$ions
4 None of these
Explanation:
(c) Dfuring resting stage the axonal membrane is more permeable to ${{\text{K}}^{+}}$ions and nearly impermeable to $\text{N}{{\text{a}}^{+}}$ions.
NCERT Page-317
Neural Control and Coordination
285064
Mark the correct statement
1 Electrical synapses are more common in our neural system than chemical synapses
2 The new potential in post synaptic neuron may be either excitatory or inhibitory
3 Hypothalamus is the major coordinationcentre for sensory and motor signaling
4 The tracts of nervefibres that connect two cerebral hemispheres are called corpora bigemina
Explanation:
(b) The new potential in post synaptic neuron may be either excitatory or inhibitory.
285061
During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?
1 First positive, then negative and again back to positive.
2 First negative, then positive and again back to negative.
3 First positive, then negative and continue to be negative.
4 First negative, then positive and continue to be positive.
Explanation:
(b)
NCERT Page-317
Neural Control and Coordination
285062
In a nerve if sodium pump is blocked, which of the following is most likely to happen?
1 $\text{N}{{\text{a}}^{+}}$and ${{\text{K}}^{+}}$will increases outside the cell.
2 $\text{N}{{\text{a}}^{+}}$outside the nerve will increase.
3 $\text{N}{{\text{a}}^{+}}$inside the nerve will increase.
4 ${{\text{K}}^{+}}$inside the nerve will increase.
Explanation:
(c) The ionic concentration gradients across the resting membrane are maintained by active transport of ions by sodium-potassium pump which transports $3\text{N}{{\text{a}}^{+}}$ outwards for $2{{\text{K}}^{+}}$into the cell. Hence, if sodium pump is blocked, sodium inside the nerve will increase.
NCERT Page-317 / N-232
Neural Control and Coordination
285063
During resting stage the axonal membrane is
1 Impermeable to both cations and anions
2 Permeable to anions and impermeable to cations
3 More permeable to${{\text{K}}^{+}}$ions and nearly impermeable to $\text{N}{{\text{a}}^{+}}$ions
4 None of these
Explanation:
(c) Dfuring resting stage the axonal membrane is more permeable to ${{\text{K}}^{+}}$ions and nearly impermeable to $\text{N}{{\text{a}}^{+}}$ions.
NCERT Page-317
Neural Control and Coordination
285064
Mark the correct statement
1 Electrical synapses are more common in our neural system than chemical synapses
2 The new potential in post synaptic neuron may be either excitatory or inhibitory
3 Hypothalamus is the major coordinationcentre for sensory and motor signaling
4 The tracts of nervefibres that connect two cerebral hemispheres are called corpora bigemina
Explanation:
(b) The new potential in post synaptic neuron may be either excitatory or inhibitory.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Neural Control and Coordination
285061
During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?
1 First positive, then negative and again back to positive.
2 First negative, then positive and again back to negative.
3 First positive, then negative and continue to be negative.
4 First negative, then positive and continue to be positive.
Explanation:
(b)
NCERT Page-317
Neural Control and Coordination
285062
In a nerve if sodium pump is blocked, which of the following is most likely to happen?
1 $\text{N}{{\text{a}}^{+}}$and ${{\text{K}}^{+}}$will increases outside the cell.
2 $\text{N}{{\text{a}}^{+}}$outside the nerve will increase.
3 $\text{N}{{\text{a}}^{+}}$inside the nerve will increase.
4 ${{\text{K}}^{+}}$inside the nerve will increase.
Explanation:
(c) The ionic concentration gradients across the resting membrane are maintained by active transport of ions by sodium-potassium pump which transports $3\text{N}{{\text{a}}^{+}}$ outwards for $2{{\text{K}}^{+}}$into the cell. Hence, if sodium pump is blocked, sodium inside the nerve will increase.
NCERT Page-317 / N-232
Neural Control and Coordination
285063
During resting stage the axonal membrane is
1 Impermeable to both cations and anions
2 Permeable to anions and impermeable to cations
3 More permeable to${{\text{K}}^{+}}$ions and nearly impermeable to $\text{N}{{\text{a}}^{+}}$ions
4 None of these
Explanation:
(c) Dfuring resting stage the axonal membrane is more permeable to ${{\text{K}}^{+}}$ions and nearly impermeable to $\text{N}{{\text{a}}^{+}}$ions.
NCERT Page-317
Neural Control and Coordination
285064
Mark the correct statement
1 Electrical synapses are more common in our neural system than chemical synapses
2 The new potential in post synaptic neuron may be either excitatory or inhibitory
3 Hypothalamus is the major coordinationcentre for sensory and motor signaling
4 The tracts of nervefibres that connect two cerebral hemispheres are called corpora bigemina
Explanation:
(b) The new potential in post synaptic neuron may be either excitatory or inhibitory.
