Topic-8
Biology
1. In which part of the skull the brain lies ?- Cranium
2. In which part of the body Cerebrospinal fluid is present ?- Brain and Spinal Cord
3. What are the part of the forebrain ?- Cerebrum, Thalamus and Olfactory Lobes
4. Optical lobe is the part of which brain ?- Midbrain
5. Medulla Oblongata is the part of which part of the brain ?- Hindbrain
6. Which are the parts the Forebrain ?-
· Cerebrum
· Thalamus
· Hypothalamus
7. Which part of the forebrain leads to storage of the memory ?- Cerebrum
8. Which part of the forebrain deals with touch , visual system , sleep and wakefulness ?- Thalamus
9. Which part of the forebrain deals with water balance in the body, behavior patterns of sex , sleep and stress emotions ?- Hypothalamus
10. Which part of the brain deals with visual analysis ?- Midbrain
11. Which area in the brain is related to speech production ?- Broca Area
12. Which area of the brain is related to the understanding of the speech ?- Wernick’s Area
13. What are the major part of the hindbrain ?- Cerebellum and Medulla Oblongata
14. Which part of the brain deals with impulses to and from the brain and is the centre for reflex actions like blinking of the eye ?- Spinal Cord
15. What are the major parts of the Peripheral Nervous System ?- Cranial and Spinal
16. Pairs of the Cranial Nervous System :-
I. 10 Pairs – In Fishes and Amphibians
II. 12 Pairs- in Higher Chordates
17. Pairs of Spinal Nerves
I. 10 Pairs – Spinal Nerves
II. 31 Pairs – Humans
18. What are the two major divisions of the Peripheral Nervous System ?-
· Somatic Nervous System
· Autonomous Nervous System
19. Which nervous system transmits impulses from the CNS to involuntary organs and smooth muscles of the body?- Autonomous Nervous System
20. What are the two major divisions of the Nervous System ?
I. Sympathetic Nervous System
II. Parasympathetic Nervous System
21. Which test is conducted to measure and record the electrical activity of our brain ?- EEG – Electroencephalogram
22. Eye can distinguish in how many colours ?- 10 million
23. What is outermost layer or bony layer of the eye ?- Sclerotic Layer
24. What is the dome shaped tissue covering the front of the eye ? – Cornea
25. What is the continuation of the upper eyelid ?- Conjuctiva
26 . What is the coloured part of the eye that controls the amount of light that enters eye by changing the size of the pupil ?- Iris
27. What is black hole in the centre of the Iris ?- Pupil
28. What are the muscles in the eye that regulate the lens curvature ?- Ciliary Muscles
29. What is the biconvex transparent circular solid located just behind the iris ?- Lens
30. Features of Retina :
· It is the light sensitive tissue that lies at the back of the eye.
· It contains millions of photoreceptors (rods and cones ) that convert light rays into electrical impulses that are relayed to the brain via the optic nerve.
· The image formed on retina is real and inverted.
31. What are the features of Rods in Retina ?
· They are highly sensitive to dim light.
· They contain the reddish purple pigment called rhodopsin.
· Night vision involves rods.
32. Which part of retina are sensitive to bright light and it differentiates the colours ?- Cones
33. Which region is the area of the sharpest vision due to high concentration of cones ?- Fovea Centralis
34. Which region in the eye has no rods and cone cells hence no image is formed in the region ?- Blind Spot
35. A condition in which the nearby objects are seen more clearly than distant objects ?- Myopia
36. A condition in which distant objects are seen more clearly than near objects - Hypermetropia
37. A condition in which lens is warped causing images not to focus properly on the retina ?- Astigmatism
38. What is the other name of the coloured blindness ?- Daltonism
39. The eyes of the carnivores like cat , dog , iron sea etc . glow in night due to which constituent ?- Tapetum Lucidum
40. To which colour eyes are most sensitive ?- Yellow-Green
41. Bees can see which kind of light ?- Ultraviolet Light
42. In which disease of eye there is reduction in the size of pupil ?- Presbyopia
43. In which disease of eye there is inflammation by a bacteria ?- Conjunctivitis
44. What are the three parts of the ears ?
· External ear
· Middle ear
· Internal ear
45. Temporal lobe that controls the auditory area is situated in which part of the ear ?- Cerebral Cortex
46. Upto what decibel human ear can hear ?- 60-80 decible
47. Name the few defects in the ear–
· Otlagia Ear
· Orthitis Media
· Labyrithine
48. What is the function of smell in nose called ?- Olfaction
49. Which part of the nose is more chemosensitive than taste cells ?- Olfactory Cells
50. The product that initiates the smelling process in the nose is called ?- Olfactory Stimuli