Kerala Syllabus SAMAGRA SCERT SAMAGRA Question Pool for Class 10 English Medium Biology Sensations and Responses
The brain has a fluid which is formed from blood and reabsorbed into the blood.
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The following are the indications of some diseases affecting the nervous system. Analyze the symptoms and tabulate in A and B columns by giving the name of the disease as heading.
Loss of memory.
A | B |
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Complete the table by placing the following statements suitably in the table given below:
Applicable to Brain only |
Applicable to Spinal cord only |
Applicable to both |
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Mention any three physiological activities retarded due to the action of Sympathetic system.
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Mention any three physiological activities came in to normal state by the action of Parasympathetic system
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Observe the illustration and answer the questions.
a) Identify A and B. b) Write any two functions of B.
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Copy the diagram and label the parts according to the indicators given below.
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Analyse the illustration and answer the questions. Different parts of the body ------(A)----> Central nervous system -----(B)----> Different parts of the body.
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Copy the diagram and label the parts according to the indicators given below
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Analyse the given statements and answer the questions.
A- "The sympathetic system stimulates all physical activities".
B - " The sympathetic system stimulates some physical activity and reduces certain functions".
Which statement do you agree with? Justify your answer.
B - " The sympathetic system stimulates some physical activity and reduces certain functions".
Production of saliva decreases, Gastric activities slow down,
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Some physical activity will change when you feared.
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"Synapse has a major role in controlling the direction of impulses " Justify the statement citing appropriate evidence.
Neurotransmitters secrete from the synaptic knob to the synaptic cleft. So impulse can travel only from a neuron's axonite to the dentrite of another neuron through
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Analyse the illustration and answer the questions.
Which nerve is labelled as " X ".
X -sensory neuron
All spinal nerves are mixed nerves .This contains sensory
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Copy the diagram and label the parts based on the indicators given below.
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Some parts of the central nervous system is given in the box. Arrange them suitably in the box provided.
Central canal, cerebrum, thalamus, hypothalamus, meninges, medulla oblongata.
Statement |
Part |
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1. Part which controls involuntary actions. |
1. ............................ |
2. part which contain cerebrospinal fluid. |
2. ............................ |
3. Part which act as relay station of impulses. |
3. ............................ |
4. Largest part of the brain. |
4. ............................ |
5.Part which maintains homeostasis. |
5. ............................ |
6.Part which protects brain. |
6. ............................ |
1. Medulla oblongata.
2. Central canal.
3. Thalamus
4. Cerebrum
5. Hypothalamas
6.
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A | B | C |
Loss of body Balance |
---- |
Continuous and irregular flow of electric charges in the brain |
---- |
---- |
---- |
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The main symptoms of a disease affecting the nervous system are given below. Analyze the symptoms and answer the questions.
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Copy the diagram and select the parts of the neuron from the following. Write down the function that each of them performs.
a) Schwann cell b) Dorsal root c) Axonite d) Dentrite e) Central canal
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Formation of impulses in a neuron is illustrated below.
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“Impulses are formed due to the change in the distribution of ions on either side of the plasma membrane of a neuron”
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Analyse the statements given tin the box , Give the name of the layers as heading and complete the table.
......................................... |
......................................... |
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Identify the odd one and write the common feature of others.
Touch, Sound, Smell, Thirst
Thirst - Others are external
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Identify the word pair relation ship and fill the blanks. Myelin sheath : Covers and protects axon. ................................ : Covers and protects brain
Meninges
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Find out the correct statements related to myelin sheath from those given below.
b) Myelin sheath in the nerves are made up of schwann cells and that of brain and spinal cord is formed of
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Select the correct statement from the following related to myelin sheath.
b) Schwann cells repeatedly encircle the axon to form Myelin sheath.
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Observe the following figure and answer the questions.
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A fluid fills the internal membranes of Memninges.
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Identify the parts of the nervous system with each of the following functions.
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Analyse the following situations and complete the table.
Under the control of the spinal cord | Under the control of the Cerebrum |
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Analyse the following statements and write the reasons for each.
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Prepare a flow chart using the words given in the box related to reflex arc.
Motor neuron, receptor, muscle, interneuron, sensory nerve |
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Impulses transmit in the form of electrical charges. Find the evidence from the following that substantiate this statement.
a and b
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Synapses can regulate the direction of impulses. Select the statement which substantiates this fact.
a) Neurotransmitters are released in the synaptic cleft from the synaptic
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Find the correct statement related to Interneuron.
c. Rapid responses are produced in relation to sensory
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Analyse the statements A and B and identify the suitable explanation from the following.
Statement A- Alzheimer's disease is due to the destruction of neurons. Statement B- Accumulation of an insoluble protein in the neural tissues of the brain of Alzheimer's patient occurs.
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The following table includes the parts of brain and their functions. Identify the correct pair from them.
Parts of brain | Function |
1) Cerebrum | i) Relay of impulses |
2) Thalamus | ii) Maintenance of body equilibrium |
3) Cerebellum | iii) Heart beat |
4) Medulla oblongata | iv) Maintenance of homeostasis |
v) Sensory experiences |
d) 1-v, 2-i, 3- ii, 4- iii
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The spinal nerves are made up of definite Dorsal and Ventral roots. Then, the ventral root is made up of:
b) With motor nerve
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Select the correctly labelled one from the following.
3. A- Central canal, B- White matter, C-Ventral root, D- Dorsal
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Which of the following indicates grey matter?
b. The part where the cell body and non myelinated neurons are
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Receptor --> motor nerve --> Sensore nerve --> Interneuron --> Muscle
Receptor --> Sensory Nerve --> Interneuron --> Motor neuron --> Muscle
Receptorr -->Motor nerve --> Interneuron --> Sensory Nerve --> Muscle
c) Receptor --> Sensory Nerve --> Interneuron --> Motor neuron -->
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Analyse the table and rearrange the parts according to the features.
Part |
Feature |
---|---|
White matter |
Sensory impulses reach the spinal cord |
Central canal |
Nerve parts without Myelin sheath are seen |
Dorsal root |
Nerve parts with Myelin sheath are seen |
Grey matter | Carries cerebrospinal fluid |
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Identify the parts perform the following functions.
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Which of the following statements are correct in connection with the transmission of impulse through synapse ?
b) Transmits from the synaptic knob of one neuron to the dendrite of adjacent
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Which of the following indicates white matter?
c) The p art of the brain and the spinal cord, where myelinated neurons are present in
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Under the control of the spinal cord
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