Fsc Part 2 Online Preparation for Biology Chapter 17 (Coordination and Control)

Online Short Questions For Chapter 3 "12th Class Biology Chapter 17 Short Questions Preparation "

Try The Short Questions For 12th Class Biology Chapter 17 Short Questions Preparation

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Biology - 12th Class Biology Chapter 17 Short Questions Preparation

Question # 1

What are pacinian corpuscles?

  • Ans 1: Pacinian corpuscles situated deep in the body.These are also encapsulated neuron endings and receive the deep pressure stimulus.Those located in the limbs probably from a basis for vibration sense.
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Prepare Complete Set Wise Questions For Chapter 3 "12th Class Biology Chapter 17 Short Questions Preparation "

12th Class Biology Chapter 17 Short Questions Preparation - Set 1

Question # 1

What are pacinian corpuscles?

  • Ans 1: Pacinian corpuscles situated deep in the body.These are also encapsulated neuron endings and receive the deep pressure stimulus.Those located in the limbs probably from a basis for vibration sense.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 2

Question # 1

Explain imprinting.

  • Ans 1: young birds after hatching have a tendency to follow moving objects in their surroundings and show a brief period of sensitivity during which shape of object can be imprinted with the result that the young birds follow them.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 3

Question # 1

What are neurotransmitters?Give it example.

  • Ans 1: Neurotransmitters are the chemicals which are secreted at neuron endings,which transfer nerve impluse from on neuron to another neuron e.g Acetylcholine,adrenaline,dopamine,serotonin.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 4

Question # 1

What is action of nicotine on coordination?

  • Ans 1: Nicotine affects post synaptic membrane in CNS and PNS.It minimizes the action of acytylcholine on the nicotine receptors.So it is sitmulant of nerve impluse. It increases the heart beat rate,blood pressure and digestive tract mobility. Nicotine may cause vomiting,diarrhoea and even cause water retention relation by the kidneys.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 5

Question # 1

What are the function of parathyroid glands? Or What are two functions of parathyroid gland?

  • Ans 1: Parathyroid gland produces paratharmone which control calcium level in the blood.Its over activity cause demineralization of bones while under activity cause muscular tetany.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 6

Question # 1

Compare photoreceptors with chemoreceports.

  • Ans 1: Chemoreceptors These are sensitive for chemical changes.These are for smell,taste and for blood carbon dioxide and oxygen,glucose,amino acids and fatty acids(receptors in hypothalamus)
  • Ans 2: Photoreceptors Electromagnetic receptors or photoreceptors respond to stimuli of light for example in eyes,rods and cones
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12th Class Biology Chapter 17 Short Questions Preparation - Set 7

Question # 1

What are neurotransmitters?Give it example.

  • Ans 1: Neurotransmitters are the chemicals which are secreted at neuron endings,which transfer nerve impluse from on neuron to another neuron e.g Acetylcholine,adrenaline,dopamine,serotonin.
Submit

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17th Chapter

12th Class Biology Chapter 17 Short Questions

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