HBSE Class 11 Biology Sense Organs Multiple Choice Question and Answers

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Question 1. One End Of Each Semicircular Is Enlarged to form A Small Rounded Structure Called

  1. Ampulla
  2. Lagena
  3. Crislnc
  4. Pars Basilaris.

Answer: 1. Ampulla

Question 2. Extraordinary Hearing Ability Is Possessed By :

  1. Owl
  2. Mosquito
  3. Frog
  4. Bat.

Answer: 4. Bat.

sense organs definition

Question 3. In Man, The Vision Is :

  1. Uniocular
  2. Binocular
  3. Mosaic
  4. Opposition Type.

Answer: 2. Binocular

Question 4. The Sense Of Hearing Is Located In The :

  1. Semi-Circular Canals
  2. Organ Of Corti
  3. Eustachian Tube
  4. Ampulla.

Answer: 2. Organ Of Corti

Question 5. The Nose Is A :

  1. Mechanoreceptors
  2. Chemoreceptor
  3. Thermal Receptor
  4. Cold Receptor.

Answer: 2. Chemoreceptor

HBSE Class 11 Biology Sense Organs

Question 6. The Chemoreceptors Are The :

  1. Organs Of Smell
  2. Organs Of Hearing
  3. Organs Of Smell And Taste
  4. Organs Of Touch.

Answer: 3. Organs Of Smell And Taste

Question 7. Proprio -Receptors Respond To :

  1. Mechanical Stimuli
  2. Chemical Stimuli
  3. Odour
  4. None Of The Above.

Answer: 1. Mechanical Stimuli

Question 8. Naked Dendrites Are Receptors For :

  1. Taste
  2. Touch
  3. Smell
  4. Odour.

Answer: 2. Touch

Question 9. Receptors Of Deep Pressure Present In Deep Layers Of Skin Are :

  1. Krause’s End Bulbs
  2. Meissner’S Corpuscles
  3. Pacinian Corpuscles
  4. Corpuscles Of Ruffini.

Answer: 3. Pacinian Corpuscles

sensory organs function

Question 20. Jacobson’s Organ Is Concerned With :

  1. Smell
  2. Burrowing
  3. Touch
  4. Sight.

Answer: 1. Smell

Human Sense Organs Diagram

Question 21. The Ear Pinna In Mammals Has :

  1. Protective Action
  2. Sound Collecting Action
  3. Sound Perceiving Action
  4. No Function.

Answer: 2. Sound Collecting Action

Question 22. In Frog, The Taste Buds Are Confined To :

  1. Tongue
  2. Buccal Cavity
  3. Tongue And Roof Of Buccal Cavity
  4. Tongue And Floor Of Buccal Cavity.

Answer: 3. Tongue And Roof Of Buccal Cavity

Question 23. Receptors Which Have Sensitive To Pain Are Called :

  1. Tangoivceptors
  2. Algesiivceptors
  3. Frigidonvcplors
  4. Theo receptors.

Answer: 2. Algesiivceptors

Question 24. The Maintenance Of Proper Balance in Daring Athletic Activity Is Done By :

  1. Cochlea
  2. Auditory Canal
  3. Tympanic Membrane
  4. Semicircular Canal.

Answer: 4. Semicircular Canal

five organs in the human body

Question 25. In Comparison To The Internal Ear Of a Frog, The Internal Of a Rabbit Has:

  1. A Smaller Cochlea
  2. A Longer Coiled Cochlea
  3. Fused Utriculus And Sacculus
  4. No Sacculus.

Answer: 2. A Longer Coiled Cochlea

Question 26. Ear Is Most Sensitive To :

  1. 20 Cycles /Sec
  2. 1000 Cycles /Sec
  3. 10,000 Cycles /Sec
  4. 40,000 Cycles/Sec.

Answer: 2. Increased Pressure Of Fluid In The Eye Ball

Question 27. Glaucoma Is An Eye Disease Arising From :

  1. Increased Pressure Of Fluid In The Eye Ball
  2. Elongation Of Eye Ball
  3. Shortening Of Eye Ball
  4. Opacity Of The Retina.

Answer: 1. Increased Pressure Of Fluid In The Eye Ball

what are sense organs how are they useful to us

Question 28. Which One Of The Following Is The Function Of Iris In The Eye Of Frog?

  1. Alters The Size Of Pupil
  2. Moves The Lens Forward
  3. Moves The Lens Backward
  4. Brings About The Movement Of Nictitating Membrane.

Answer: 1. Alters The Size Of Pupil

Question 29. Human Eye Lens Is :

  1. Spherical And Can Be Moved Forward
  2. Biconvex And Cannot Be Moved Forward
  3. Spherical And Cannot Be Moved Forward
  4. Biconvex And Can Be Moved Forward.

Answer: 2. Biconvex And Cannot Be Moved Forward

Five Sense Organs and Their Functions

Question 30. A Molecule Cannot Be Tasted Or Smelled Until It Has Been :

  1. Converted Into A Protein
  2. Converted Into A Neurotransmitter
  3. Grouped Into A Multimolecular Complex
  4. Dissolved In A Liquid.

Answer: 4. Dissolved In A Liquid.

Question 31. The Receptors For Both Taste And Smell Are :

  1. Mechanoreceptors
  2. Chemoreceptors
  3. Thermoreceptors
  4. Electromagnetic Receptors.

Answer: 2. Chemoreceptors

Question 32. The Taste Receptors Of A Bottom-Feeding Fish Are Located :

  1. All Over Its Body Surface
  2. Within Taste Buds Near Its Fins
  3. Within Taste Buds On Its Gills
  4. Within Its Mouth.

Answer: 1. All Over Its Body Surface

Question 33. Baroreceptors Or Pressure Receptors Tyre Present In The Walls Of:

  1. Arteries
  2. Veins
  3. Right Atrium
  4. All The Above.

Answer: 4. All The Above.

Question 34. The Taste Receptors Of All Terrestrial Vertebrates Are Located :

  1. All Over The Body Surface
  2. Within Taste Buds In The Trachea
  3. Within The Nasal Cavity
  4. Within Taste Buds In The Mouth.

Answer: 4. Within Taste Buds In The Mouth.

Structure and Function of Sense Organs

Question 35. Most Of What We “Taste” In Food Is Actually :

  1. Imagined By Our Cerebral Cortex
  2. A Memory From Childhood, When We Had More Taste Receptors
  3. Odours
  4. Normal Components Of Saliva.

Answer: 3. Odours

Question 36. The Taste Receptors Of A Bottom Feeding Fish Are Located :

  1. Within Taste Buds In The Mouth
  2. Within The Taste Buds In Trachea
  3. Within The Nasal Cavity
  4. All Over Its Body Surface.

Answer: 4. Within The Nasal Cavity

Question 37. Camera Eyes Are Found In :

  1. Insects
  2. Spiders
  3. Birds
  4. Crab.

Answer: 3. Birds

Question 38. Which Of The Following Types Of Eyes Has The Widest Range Of Vision?

  1. Ocelli
  2. Camera Eyes
  3. Compound Eyes Of Insects
  4. Simple Eyes Of Insects.

Answer: 2. Camera Eyes

Question 39. Well Developed Sonar System Is Present In :

  1. Monkeys
  2. Crocodiles
  3. Bats
  4. Pigeon.

Answer: 3. Bats

Sense Organs Class 11 Notes

Question 40. The Eye Of The Following Group Resembles The Vertebrate Eye:

  1. Cephalopoda
  2. Bivalvia
  3. Gastropoda
  4. Pelecypoda.

Answer: 1. Cephalopoda

Question 41. The Coats Of Eyeball Are :

A. Sclera

B. Retina

C. Conjunctiva

D. Otolith Membrane.

Answer Codes :

  1. A And C Are Correct
  2. B And D Are Correct
  3. A And B Are Correct
  4. A, B And C Are Correct.

Answer: 3. A And B Are Correct

Question 42. A 22-year student Goes To His Ophthalmologist. He Has a Problem In Reading Books Because He Is Not Able To Contract His :

  1. Iris
  2. Pupil
  3. Ciliary Muscles
  4. Suspcusoty Ligament.

Answer: 3. Ciliary Muscles

Question 43. The Ivivcptum Ot Sound In Mammals Is By Stimulation Of Mechanoreceptors Located In :

  1. Saculus
  2. Semicircular Canal
  3. Organ Of Coni
  4. Reissner’s Membrane.

Answer: 3. Organ Of Coni

Question 44. Which Statement About Olfaction Is Not True?

  1. Dogs Are Unusual Among Mammals, In That They Depend More On Olfaction Than On Vision, As Their Dominant Sensory Modality.
  2. Olfactory Stimuli Are Recognised By The Interaction Between The Stimulus And A Specific Macromolecule On Olfactory Hairs
  3. The Greater The Number Of Action Potentials Generated By An Olfactory Receptor, The Greater The Intensity Of Die Perceived Smell
  4. The Perception Of Different Smells Results From The Activation Of Different Combinations Of Olfactory Receptors.

Answer: 3. The Greater The Number Of Action Potentials Generated By An Olfactory Receptor, The Greater The Intensity Of Die Perceived Smell

Question 45. The Membrane That Gives Us The Ability To Discriminate Different Pitches Of Sound Is The :

  1. Round Window
  2. Tympanic Membrane
  3. Tectorial Membrane
  4. Basilar Membrane.

Answer: 3. Tectorial Membrane

Question 46. The Colour In Vision Results From The :

  1. Different Absorption Of Wavelengths Of Light By Different Classes Of Rods
  2. Ability Of Each Cone To Absorb All Wavelengths Of Light Equally
  3. Lens Of The Eye Acting Like A Prism And Separating The Different Wavclenphts Hy Light
  4. Three Different Isomers Of Opsin In Different Classes Of Cone Cells.

Answer: 4. Three Different Isomers Of Opsin In Different Classes Of Cone Cells.

Question 47. During Accommodation For Near Vision :

  1. Images From The Distant Objects Arc Focussed Behind The Retina
  2. The Focussing Power Of The Lens Is Increased
  3. The Sympathetic Nerves To The Eye Arc Activated
  4. The Pupil Does Not Constrict.

Answer: 2. The Focussing Power Of The Lens Is Increased

Question 48. Which Of The Following Is Incorrect?

  1. Perception Is The Conscious Awareness And Interpretation Of Sensation
  2. Dancers And Sports Persons Can Maintain Their Proper Body Position By Using Their Internal Sense Of Balance
  3. Each Eye Weighs Only 7 Gms
  4. Embedded In The Tarsal Plate Of the Eyelid Is a Row Of Elongated Modified Sebaceous Glands Called Meibomian Glands.

Answer: 2. Dancers And Sports Persons Can Maintain Their Proper Body Position By Using Their Internal Sense Of Balance

Question 49. Which Of The Following Is Not Correct Pairing?

  1. Glands Of Zeis – Modified Sebaceous Glands (Oil Glands)
  2. Glands Of Moll – Modified Sweat Glands (Sudori¬Ferous Glands)
  3. Meibomian Glands – Modified Sebaceous Glands
  4. Harderian Glands – Modified Sweat Glands.

Answer: 4. Harderian Glands – Modified Sweat Glands.

Question 50. Rhabdome Is Found In The Eyes Of:

  1. Insects
  2. Annelids
  3. Rabbit
  4. Frog.

Answer: 1. Insects

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