MCQ Sense Organs Class-10 for ICSE Biology Sem-2 Sec-A

Sec-A Sem-2 ICSE Class-10 Biology MCQ Type Questions of Sense Organs

1. Which part of the eye is grafted in a needy patient from a donated eye?

1. Conjunctiva
2. Cornea
3. Choroid
4. Ciliary muscles

Answer  2. Cornea

2. Which part of our ear is shaped like a snail shell?

1. Semi-circular canals
2. Cochlea
3. Stapes
4. Eustachian tube

Answer 2. Cochlea

3. The three parts of human ear contributing in hearing are:-

1. Cochlea, ear ossicles and tympanum
2. Semi-circular canals, utriculus and sacculus
3. Eustachian tube, tympanum and utriculus
4. Perilymph, ear ossicles and semi-circular canals

Answer 3. Eustachian tube, tympanum and utriculus

4. The region in the eye where the rods and cones are located is the

1. Retina
2. Cornea
3. Choroid
4. Sclera

Answer 1. Retina

5. Glands of Moll are modified

1. Oil glands
2. Tear glands
3. Sweet glands
4. Scent glands

Answer: 3. Sweet glands

6. The secretion of lachrymal gland is

1. Watery
2. Acidic
3. Oily
4. Alkaline

Answer: 1. Watery

7. Sty is infection of

1. Gland of Zeis
2. Tarsal gland
3. Gland of Moll
4. Lachrymal gland

Answer: 1. Gland of Zeis

8. Which of the following receptors are responsible for detection of smell?

Answer: 1. Olfactory

9. The smallest bone called stapes (or stirrup) found in the human body is located in the:

Answer: 4. Middle ear

10. Which organ in the human body helps to maintain balance?

Answer: 3. Ear

11. The inner most layer of human eye is _____

1. clera
2. Cornea
3. Choroid
4. Retina

Answer: 4. Retina

12. Macula lutea is a part of

1. Optic nerve
2. Sclerotic
3. Choroid
4. Retina

Answer: 4. Retina

13. Lens in man is

1. Biconvex
2. Biconcave
3. Spherical
4. Cylindrical

Answer: 1. Biconvex

14. The musculus tensor choroidea is

1. Another name of tela choroidea
2. Muscles surrounding the lens
3. Levator bulbi muscles
4. None of the above

Answer: 2. Muscles surrounding the lens

15. The size of pupil is controlled by the _______.

Answer: 2. Iris

16. Things invisible to the human eyes can often be seen under _____________.

Answer: 4. Ultra Violet Light

17. Which among the following is an example of Analogous organs?

Answer: 3. Wings of insects and birds

18. The eye ball protrudes from the orbit with the concentration of

1. Retractor bulbi muscles
2. Protractor lentis muscles
3. Levator bulbi muscles
4. None of the above

Answer: 3. Levator bulbi muscles

19. Colour to the eye is imparted by

1. Lens
2. Pupil
3. Iris
4. Vitreous humour

Answer: 3. Iris

20. The size of pupil decreases due to the contraction of

1. Radial muscles
2. Circular muscles
3. Both circular and radial muscles
4. Nictiating membrane

Answer: 2. Circular muscles

21. The vision of man is

1. Monocular
2. Binocular
3. Apposition
4. None of the above

Answer: 2. Binocular

22. Eye muscles are attached with

1. Sclerotic
2. Cornea
3. Choroid
4. Retina

Answer: 1. Sclerotic

23. The visual purple is concerned with

1. Bright light
2. Dim light
3. Moderate light
4. Darkness

Answer: 2. Dim light

24. The region of the vertebrate eye, where the optic nerve passes out of the retina, is called the

Answer: 3. Blind spot

25. With which of the following is the term ‘Olfactory’ associated?

Answer: 3. Smell

26. The _____ in the iris that make pigment are called melanocytes.

Answer: 3. Cells

27. Which one of the following parts is injured if memory of a man weakens?

Answer: 3. Cerebrum

28. The enlargement at one end of each semicircular canal is known as

1. Lagena
2. Utriculus
3. Ampulla
4. Sacculus

Answer: 3. Ampulla

29. Which part of internal ear receives sound waves in man

1. Cochlea
2. Legena and utriculus
3. Ampullae and utriculus
4. None of the above

Answer: 1. Cochlea

30. From the sacculus arises a narrow tube called

1. Ductus endolymphaticus
2. Endolymphatic sac
3. Cochlea
4. None of the above

Answer: 1. Ductus endolymphaticus

31. Reflex action is governed by

Answer: 1. Central nervous system

32. The sensitive area of the human tongue to bitterness is

Answer: 3. Posterior part

33. The membranous labyrinth contains a fluid called

Answer: 4. Endolymph

34. In which part of an eye a pigment is present which is responsible for brown, blue or black eyes?

Answer: 3. Iris

35. In man’s eye, the sclerotic is made up of

1. Bone
2. Cartilage
3. Muscles and cartilage
4. Fibrous connective tissue

Answer: 4. Fibrous connective tissue

36. In mammalian eye, the power of accommodation is controlled by changing thickness of the lens, governed by

1. Cornea
2. Pupil
3. Iris
4. Ciliary body

Answer: 4. Ciliary body

37. Lacrimal glands are concerned with secretion of

1. Hormones
2. Digestive juices
3. Enzymes
4. Tears

Answer: 4. Tears

38. Which of the following prevents internal reflection of light inside the eye?

1. Cornea
2. Sclera
3. Choroid
4. Retina

Answer: 3. Choroid

 39. In which of the following only cone cells are found?

1. Fovea centralis
2. Retina
3. Fossa ovalis
4. Blind spot

Answer: 1. Fovea centralis

40. Visual purple is found in

1. Cornea
2. Cones
3. Rods
4. Retina

Answer: 3. Rods

 

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