CBSE 11th Standard Biology Subject Neural Control and Coordination Ncert Exemplar 2 Marks Questions 2021
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CBSE 11th Standard Biology Subject Neural Control and Coordination Ncert Exemplar 2 Marks Questions 2021
11th Standard CBSE
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Reg.No. :
Biology
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Rearrange the following in the correct order of involvement in electrical impulse movement - synptic knob, dendrities, cell body, axon terminal and axon.
(a) -
Complete the statement by choosing appropriate match among the following:
A. Resting potential 1.Chemicals involved in the transmission of impulses at synapses. B. Nerve impulse 2.Gap between the presynaptic and postsynaptic neurons. C. The synaptic cleft 3.Eletrical potential difference across the resting neural membrane. D. Neurotransmitters 4. An electrical wave-like response of a neuron to a simulation. -
Arrange the following n the order of reception and transmission of sound wave from the ear drum Cochlear nerve, external auditory canal, ear drum, stapes incus, malleus, cochlea
(a) -
Nervous system and computers share certain common features. Comment in five lines. (Hint: CPU, input-output devices).
(a) -
If someone receives a blow on the back of neck, what would be the effect on the person's CNS?
(a)
2 Marks
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CBSE 11th Standard Biology Subject Neural Control and Coordination Ncert Exemplar 2 Marks Questions 2021 Answer Keys
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Dendrites, cell body, axon, axon terminal and synaptic knob.
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External auditory canal, eardrum, malleus,incus, stapes, cochlea and cochlear nerve.
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The brain might be compared to a computer as its memory banks. The spinal cord to the conducting cable for the computer's input and output and the nerves to a circuit supplying input information to the cable and transmitting the output to muscles and organs. The most important of these components is the Central Processing Unit (CPU) or microprocessor, which acts as the 'brain' of your computer.
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If a person receives a blow on the back, it results in an impairment of cognitive abilities or physical functioning. It can also result in the disturbance of behavioural or emotional functioning. Cervical injuries often result in quadriplegia (tetraplegia)
2 Marks
