(a) Cell body/ centron
(b) - Acts as shock absorbers for protection or spinal cord against mechanical damage
- It nourishes the brain tissue
(c) Presence of fatty myelin sheath of neurones which give it a shiny white appearance.
johnmulu answered the question on May 24, 2017 at 11:02
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Give a reason why the image is not formed when light is focused on the blind spot.
(Solved)
Give a reason why the image is not formed when light is focused on the blind spot.
Date posted:
May 24, 2017
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Answers (1)
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The diagram illustrates a nerve cell.
(Solved)
The diagram illustrates a nerve cell.
(a) Name the type of nerve cell illustrated.
(b) Give a reason for your answer in (a) above
(c) Identify the part labelled J
Date posted:
May 24, 2017
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Answers (1)
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State one function of each of the following parts of mammalian eye:
(Solved)
State one function of each of the following parts of mammalian eye:
(a) eye lashes
(b) Lachrymal glands
Date posted:
May 24, 2017
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Answers (1)
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State three differences between tactic and tropic responses.
(Solved)
State three differences between tactic and tropic responses.
Date posted:
May 24, 2017
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Answers (1)
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The diagram below represents the human ear.
(Solved)
The diagram below represents the human ear.
(a) Name the parts labelled E, F and G.
(b) Name one defect of the human ear.
Date posted:
May 24, 2017
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Answers (1)
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The diagram below illustrates a defect in the eye.
(Solved)
The diagram below illustrates a defect in the eye.
Explain how the defect illustrated above can be corrective can be corrected.
Date posted:
May 24, 2017
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Answers (1)
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What is meant by the term irritability?
(Solved)
What is meant by the term irritability?
Date posted:
May 24, 2017
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Answers (1)
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State the importance of negative phototaxis to termites.
(Solved)
State the importance of negative phototaxis to termites.
Date posted:
May 24, 2017
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Answers (1)
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The diagram below represents a section of the human brain.
(Solved)
The diagram below represents a section of the human brain.
(i) Name the structures labeled P and R.
(ii) State two functions of the part labeled Q.
Date posted:
May 24, 2017
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Answers (1)
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The diagram below shows how the iris and pupil of a human eye appear under different conditions.
(Solved)
The diagram below shows how the iris and pupil of a human eye appear under different conditions.
(a) Name the structures labeled X and Y.
(b) (i) State the condition that leads to the change in appearance shown in the diagram labeled B.
(ii) Describe the changes that leads to the appearance of the iris and pupil as shown in the diagram labeled B.
(iii) What is the s
Date posted:
May 24, 2017
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Answers (1)
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(a)(i) Explain the changes that take place in the pupil and iris of a human eye when a person moves from a dark room to a room with bright light.
(ii) What is the significance of the changes explained in (a) above.
(Solved)
(a)(i) Explain the changes that take place in the pupil and iris of a human eye when a person moves from a dark room to a room with bright light.
(ii) What is the significance of the changes explained in (a) above.
(b) How does the human eye obtain nutrients?
(c) Explain why images that form on the blind spot are not perceived
Date posted:
May 24, 2017
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Answers (1)
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(a) Where in the human body are relay neurons found
(b) The diagram below represents a neurone
(Solved)
(a) Where in the human body are relay neurons found
(b) The diagram below represents a neurone
(i) Name the neurone
(ii) Name the parts labeled P and Q
(c) State a function of myelin sheath
Date posted:
May 24, 2017
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Answers (1)
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State the function of each of the following parts of human ear.
(a) Ear ossicles
(b) Cochlea
(Solved)
State the function of each of the following parts of human ear.
(a) Ear ossicles
(b) Cochlea
(c) Semi circular canals
(d) Eustachian tube.
Date posted:
May 24, 2017
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Answers (1)
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The diagram below represents a reflex arc in human.
(Solved)
The diagram below represents a reflex arc in human.
(a) Name the parts labeled X and Y.
(b) Name the substance that is responsible for the transmission of an impulse across the synapse
Date posted:
May 24, 2017
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Answers (1)
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State the importance of tactic response among some members of kingdom protista.
(Solved)
State the importance of tactic response among some members of kingdom protista.
Date posted:
May 24, 2017
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Answers (1)
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Apart from hearing, state another function of the human ear.
(Solved)
Apart from hearing, state another function of the human ear.
Date posted:
May 24, 2017
.
Answers (1)
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The diagram below shows the position of an image formed in a defective eye.
(Solved)
The diagram below shows the position of an image formed in a defective eye.
(a) Name the defect.
(b) Explain how the defect named in (a) above can be corrected.
Date posted:
May 24, 2017
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Answers (1)
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What is the function of the following cells in the retina of human eye?
(Solved)
What is the function of the following cells in the retina of human eye?
(a) Cones
(b) Rods
Date posted:
May 24, 2017
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Answers (1)
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The diagram below shows surface view of a human brain.
(Solved)
The diagram below shows surface view of a human brain.
(i) Name the parts labeled B and C.
(ii) State what would happen if the part labeled B was damaged.
Date posted:
May 19, 2017
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Answers (1)
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The diagram below represents a nerve cell.
(Solved)
The diagram below represents a nerve cell.
(a) (i) Identify the nerve cell.
(ii) Give a reason for your answer in (a) (i) above
(b) Name the structure labeled T.
Date posted:
May 19, 2017
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Answers (1)