286583
Statement I: Nerve conduction is the one way conduction.
Statement II: Nerve impulse is transmitted from dendrite terminals to axon terminals.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(b) Nerve impulses are always transmitted across a synapse from the axon terminals of one neuron to the dendrite/cell body of the next neuron but never in the reverse direction. Since the neurotransmitter is present only in the axon terminals and not in the dendrite or cell body, it cannot be released from the dendrite or cell body even if the impulse reaches there.
NCERT Page-317
Neural Control and Coordination(NCERT)
286584
Statement I: Neural system is better organised in insects due to the presence of brain, ganglia and neural tissues.
Statement II: Neural organisation is very simple in lower invertebrates.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d)
NCERT Page-316 / N-231
Neural Control and Coordination(NCERT)
286585
Statement I: Neurons are excitable cells.
Statement II: The membrane of neurons in a depolarised state is responsible for excitability.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d) Neurons are excitable cells. Excitability is the ability of nerve cells to generate an electrical impulse in response to stimulus. When a nerve fibre receives stimulus, the potential across the membrane is reversed at the point of excitation. It means, the inner side of plasma membrane of the cell becomes more positively charged with respect to the outer side of plasma membrane. This change in polarity is called action potential. This condition of reverse polarity is said to be depolarised.
NCERT Page-317 / N-232
Neural Control and Coordination(NCERT)
286586
Statement I: Increased permeability of ions due to the rise in stimulus is short lived.
Statement II: The resting membrane potential of membrane at the site of excitation is restored by and ions.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(b) The resting membrane potential of membrane at the site of recitation is restored by and ions. So statement II is incorrect.
NCERT Page-317
Neural Control and Coordination(NCERT)
286587
Which of the following statements are correct?
1 Only (ii) and (iii)
2 Only (iii) and (iv)
3 Only (i), (ii) and (iii)
4 All of these
Explanation:
(c) The statements (i), (ii) and (iii) are correct while the statement (iv) is incorrect.
286583
Statement I: Nerve conduction is the one way conduction.
Statement II: Nerve impulse is transmitted from dendrite terminals to axon terminals.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(b) Nerve impulses are always transmitted across a synapse from the axon terminals of one neuron to the dendrite/cell body of the next neuron but never in the reverse direction. Since the neurotransmitter is present only in the axon terminals and not in the dendrite or cell body, it cannot be released from the dendrite or cell body even if the impulse reaches there.
NCERT Page-317
Neural Control and Coordination(NCERT)
286584
Statement I: Neural system is better organised in insects due to the presence of brain, ganglia and neural tissues.
Statement II: Neural organisation is very simple in lower invertebrates.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d)
NCERT Page-316 / N-231
Neural Control and Coordination(NCERT)
286585
Statement I: Neurons are excitable cells.
Statement II: The membrane of neurons in a depolarised state is responsible for excitability.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d) Neurons are excitable cells. Excitability is the ability of nerve cells to generate an electrical impulse in response to stimulus. When a nerve fibre receives stimulus, the potential across the membrane is reversed at the point of excitation. It means, the inner side of plasma membrane of the cell becomes more positively charged with respect to the outer side of plasma membrane. This change in polarity is called action potential. This condition of reverse polarity is said to be depolarised.
NCERT Page-317 / N-232
Neural Control and Coordination(NCERT)
286586
Statement I: Increased permeability of ions due to the rise in stimulus is short lived.
Statement II: The resting membrane potential of membrane at the site of excitation is restored by and ions.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(b) The resting membrane potential of membrane at the site of recitation is restored by and ions. So statement II is incorrect.
NCERT Page-317
Neural Control and Coordination(NCERT)
286587
Which of the following statements are correct?
1 Only (ii) and (iii)
2 Only (iii) and (iv)
3 Only (i), (ii) and (iii)
4 All of these
Explanation:
(c) The statements (i), (ii) and (iii) are correct while the statement (iv) is incorrect.
286583
Statement I: Nerve conduction is the one way conduction.
Statement II: Nerve impulse is transmitted from dendrite terminals to axon terminals.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(b) Nerve impulses are always transmitted across a synapse from the axon terminals of one neuron to the dendrite/cell body of the next neuron but never in the reverse direction. Since the neurotransmitter is present only in the axon terminals and not in the dendrite or cell body, it cannot be released from the dendrite or cell body even if the impulse reaches there.
NCERT Page-317
Neural Control and Coordination(NCERT)
286584
Statement I: Neural system is better organised in insects due to the presence of brain, ganglia and neural tissues.
Statement II: Neural organisation is very simple in lower invertebrates.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d)
NCERT Page-316 / N-231
Neural Control and Coordination(NCERT)
286585
Statement I: Neurons are excitable cells.
Statement II: The membrane of neurons in a depolarised state is responsible for excitability.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d) Neurons are excitable cells. Excitability is the ability of nerve cells to generate an electrical impulse in response to stimulus. When a nerve fibre receives stimulus, the potential across the membrane is reversed at the point of excitation. It means, the inner side of plasma membrane of the cell becomes more positively charged with respect to the outer side of plasma membrane. This change in polarity is called action potential. This condition of reverse polarity is said to be depolarised.
NCERT Page-317 / N-232
Neural Control and Coordination(NCERT)
286586
Statement I: Increased permeability of ions due to the rise in stimulus is short lived.
Statement II: The resting membrane potential of membrane at the site of excitation is restored by and ions.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(b) The resting membrane potential of membrane at the site of recitation is restored by and ions. So statement II is incorrect.
NCERT Page-317
Neural Control and Coordination(NCERT)
286587
Which of the following statements are correct?
1 Only (ii) and (iii)
2 Only (iii) and (iv)
3 Only (i), (ii) and (iii)
4 All of these
Explanation:
(c) The statements (i), (ii) and (iii) are correct while the statement (iv) is incorrect.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
Neural Control and Coordination(NCERT)
286583
Statement I: Nerve conduction is the one way conduction.
Statement II: Nerve impulse is transmitted from dendrite terminals to axon terminals.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(b) Nerve impulses are always transmitted across a synapse from the axon terminals of one neuron to the dendrite/cell body of the next neuron but never in the reverse direction. Since the neurotransmitter is present only in the axon terminals and not in the dendrite or cell body, it cannot be released from the dendrite or cell body even if the impulse reaches there.
NCERT Page-317
Neural Control and Coordination(NCERT)
286584
Statement I: Neural system is better organised in insects due to the presence of brain, ganglia and neural tissues.
Statement II: Neural organisation is very simple in lower invertebrates.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d)
NCERT Page-316 / N-231
Neural Control and Coordination(NCERT)
286585
Statement I: Neurons are excitable cells.
Statement II: The membrane of neurons in a depolarised state is responsible for excitability.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d) Neurons are excitable cells. Excitability is the ability of nerve cells to generate an electrical impulse in response to stimulus. When a nerve fibre receives stimulus, the potential across the membrane is reversed at the point of excitation. It means, the inner side of plasma membrane of the cell becomes more positively charged with respect to the outer side of plasma membrane. This change in polarity is called action potential. This condition of reverse polarity is said to be depolarised.
NCERT Page-317 / N-232
Neural Control and Coordination(NCERT)
286586
Statement I: Increased permeability of ions due to the rise in stimulus is short lived.
Statement II: The resting membrane potential of membrane at the site of excitation is restored by and ions.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(b) The resting membrane potential of membrane at the site of recitation is restored by and ions. So statement II is incorrect.
NCERT Page-317
Neural Control and Coordination(NCERT)
286587
Which of the following statements are correct?
1 Only (ii) and (iii)
2 Only (iii) and (iv)
3 Only (i), (ii) and (iii)
4 All of these
Explanation:
(c) The statements (i), (ii) and (iii) are correct while the statement (iv) is incorrect.
286583
Statement I: Nerve conduction is the one way conduction.
Statement II: Nerve impulse is transmitted from dendrite terminals to axon terminals.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(b) Nerve impulses are always transmitted across a synapse from the axon terminals of one neuron to the dendrite/cell body of the next neuron but never in the reverse direction. Since the neurotransmitter is present only in the axon terminals and not in the dendrite or cell body, it cannot be released from the dendrite or cell body even if the impulse reaches there.
NCERT Page-317
Neural Control and Coordination(NCERT)
286584
Statement I: Neural system is better organised in insects due to the presence of brain, ganglia and neural tissues.
Statement II: Neural organisation is very simple in lower invertebrates.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d)
NCERT Page-316 / N-231
Neural Control and Coordination(NCERT)
286585
Statement I: Neurons are excitable cells.
Statement II: The membrane of neurons in a depolarised state is responsible for excitability.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d) Neurons are excitable cells. Excitability is the ability of nerve cells to generate an electrical impulse in response to stimulus. When a nerve fibre receives stimulus, the potential across the membrane is reversed at the point of excitation. It means, the inner side of plasma membrane of the cell becomes more positively charged with respect to the outer side of plasma membrane. This change in polarity is called action potential. This condition of reverse polarity is said to be depolarised.
NCERT Page-317 / N-232
Neural Control and Coordination(NCERT)
286586
Statement I: Increased permeability of ions due to the rise in stimulus is short lived.
Statement II: The resting membrane potential of membrane at the site of excitation is restored by and ions.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(b) The resting membrane potential of membrane at the site of recitation is restored by and ions. So statement II is incorrect.
NCERT Page-317
Neural Control and Coordination(NCERT)
286587
Which of the following statements are correct?
1 Only (ii) and (iii)
2 Only (iii) and (iv)
3 Only (i), (ii) and (iii)
4 All of these
Explanation:
(c) The statements (i), (ii) and (iii) are correct while the statement (iv) is incorrect.