Q 11 :    

Read the passage given below and answer the following questions from (i) to (v).

Human brain, the most complex organ in the human body, and is the controller of behaviour, seat of intelligence, interpreter of the senses, and initiator of body movements. Brain is still seen as an incomprehensible part of our body, and researchers are doing enough efforts to discover its secrets. Different parts of the brain have different and specific functions. Researchers have now gained enough insights into the healthy functioning of brain and reasons of malfunctioning in case of diseases related to the brain.

 

(i) Our hind brain has these three parts:

  • pons, medulla, and cerebellum

     

  • mid-brain, medulla, and cerebellum

     

  • spinal cord, cerebellum, and medulla oblongata

     

  • hypothalamus, cerebrum, and cerebellum

     

(1)

 



Q 12 :    

Read the passage given below and answer the following questions from (i) to (v).

Human brain, the most complex organ in the human body, and is the controller of behaviour, seat of intelligence, interpreter of the senses, and initiator of body movements. Brain is still seen as an incomprehensible part of our body, and researchers are doing enough efforts to discover its secrets. Different parts of the brain have different and specific functions. Researchers have now gained enough insights into the healthy functioning of brain and reasons of malfunctioning in case of diseases related to the brain.

 

(ii) Involuntary muscular actions are controlled by:

  • Medulla

     

  • Cerebrum

     

  • Cerebellum

     

  • Hypothalamus

     

(1)

 



Q 13 :    

Read the passage given below and answer the following questions from (i) to (v).

Human brain, the most complex organ in the human body, and is the controller of behaviour, seat of intelligence, interpreter of the senses, and initiator of body movements. Brain is still seen as an incomprehensible part of our body, and researchers are doing enough efforts to discover its secrets. Different parts of the brain have different and specific functions. Researchers have now gained enough insights into the healthy functioning of brain and reasons of malfunctioning in case of diseases related to the brain.

 

(iii) ______ responsible for precision of voluntary actions and maintaining the posture and balance of the body.

  • medulla

     

  • cerebrum

     

  • cerebellum

     

  • hypothalamus

     

(3)

 



Q 14 :    

Read the passage given below and answer the following questions from (i) to (v).

Human brain, the most complex organ in the human body, and is the controller of behaviour, seat of intelligence, interpreter of the senses, and initiator of body movements. Brain is still seen as an incomprehensible part of our body, and researchers are doing enough efforts to discover its secrets. Different parts of the brain have different and specific functions. Researchers have now gained enough insights into the healthy functioning of brain and reasons of malfunctioning in case of diseases related to the brain.

 

(iv) Blinking of eyes is a type of:

  • reflex action

     

  • voluntary action

     

  • skeletal movement

     

  • locomotor action

     

(1)

 



Q 15 :    

Read the passage given below and answer the following questions from (i) to (v).

Human brain, the most complex organ in the human body, and is the controller of behaviour, seat of intelligence, interpreter of the senses, and initiator of body movements. Brain is still seen as an incomprehensible part of our body, and researchers are doing enough efforts to discover its secrets. Different parts of the brain have different and specific functions. Researchers have now gained enough insights into the healthy functioning of brain and reasons of malfunctioning in case of diseases related to the brain.

 

(v) Peripheral nervous system consists of ____ arising from the brain and ____ arising from the spinal cord.

  • spinal nerves, spinal cord

     

  • cranial nerves, spinal nerves

     

  • cranium, spinal nerves

     

  • cranium, spinal cord

     

(2)

 



Q 16 :    

Read the passage given below and answer the following questions from (i) to (v).

These highly specialized nerve cells which are responsible for communicating information in both chemical and electrical forms. These are of different types. It is the basic building block of the nervous system. They are similar to other cells in the human body in a number of ways, but there is one key difference between them and other cells. They are specialized to transmit information throughout the body.

 

(i) The figure depicts structure of a:

  • neuron

     

  • nervous system

     

  • CNS

     

  • nerve ending

     

(1)

 



Q 17 :    

Read the passage given below and answer the following questions from (i) to (v).

These highly specialized nerve cells which are responsible for communicating information in both chemical and electrical forms. These are of different types. It is the basic building block of the nervous system. They are similar to other cells in the human body in a number of ways, but there is one key difference between them and other cells. They are specialized to transmit information throughout the body.

 

(ii) The annotations 1 and 2 in the figure depict:

  • nerve cell body and nucleus respectively.

     

  • nucleus and nerve cell body respectively.

     

  • neuron cell and nucleon respectively.

     

  • nucleus and nucleon respectively.

     

(1)

 



Q 18 :    

Read the passage given below and answer the following questions from (i) to (v).

These highly specialized nerve cells which are responsible for communicating information in both chemical and electrical forms. These are of different types. It is the basic building block of the nervous system. They are similar to other cells in the human body in a number of ways, but there is one key difference between them and other cells. They are specialized to transmit information throughout the body.

 

(iii) In a neuron conversion of electrical signal to a chemical signal occurs at:

  • Cell body

     

  • Dendritic end

     

  • Axonal terminals

     

  • Axon

     

(3)

 



Q 19 :    

Read the passage given below and answer the following questions from (i) to (v).

These highly specialized nerve cells which are responsible for communicating information in both chemical and electrical forms. These are of different types. It is the basic building block of the nervous system. They are similar to other cells in the human body in a number of ways, but there is one key difference between them and other cells. They are specialized to transmit information throughout the body.

 

(iv) The gap between two neurons is known as:

  • axon

     

  • dendrite

     

  • synapse

     

  • cytoplasm

     

(3)

 



Q 20 :    

Read the passage given below and answer the following questions from (i) to (v).

These highly specialized nerve cells which are responsible for communicating information in both chemical and electrical forms. These are of different types. It is the basic building block of the nervous system. They are similar to other cells in the human body in a number of ways, but there is one key difference between them and other cells. They are specialized to transmit information throughout the body.

 

(v) Information is acquired by the ____ of a neuron.

  • dendritic tip

     

  • axon

     

  • synapse

     

  • neuromuscular junction

     

(1)