Receptors

Receptors MDCAT MCQs with answers

10 past paper MCQs on Receptors, from the Coordination and Control unit of MDCAT Biology. The year each question appeared is shown where known; tap “Show answer” for the correct option and a short solution.

Read the notes first Practise the unit as a quiz

1.The pressure receptors that receive deep pressure stimuli in the human body are called: (MDCAT 2023)

  1. Meissner corpuscles
  2. Pacinian corpuscles
  3. red blood corpuscles
  4. white blood corpuscles
Show answer

Correct answer: (b) Pacinian corpuscles

Pacinian corpuscles lie deep in the skin and respond to heavy pressure and vibration.

2.A taste receptor is an example of a: (MDCAT 2024)

  1. mechanoreceptor
  2. nociceptor
  3. photoreceptor
  4. chemoreceptor
Show answer

Correct answer: (d) chemoreceptor

It responds to dissolved chemicals, which is what a chemoreceptor does.

3.Olfactory receptors are the type of: (UHS MDCAT 2025)

  1. photoreceptors
  2. mechanoreceptors
  3. thermoreceptors
  4. chemoreceptors
Show answer

Correct answer: (d) chemoreceptors

Smell is sensed by chemoreceptors, which respond to molecules dissolved in the mucus.

4.Taste receptor is an example of (UHS MDCAT 2024)

  1. Mechano receptors
  2. Nociceptors
  3. Photo receptors
  4. Chemo receptors
Show answer

Correct answer: (d) Chemo receptors

Taste buds respond to molecules dissolved in saliva, so they are chemoreceptors.

5.The pressure receptors that receive deep pressure stimulus in human body are called. (UHS MDCAT 2023)

  1. Meisener Corpuscles
  2. Pacinian Corpscles
  3. Red Blood Corpuscles
  4. Cholesterol
Show answer

Correct answer: (b) Pacinian Corpscles

Pacinian corpuscles lie deep in the skin and respond to pressure and vibration.

6.The blind spot in the eye is so-called due to the absence of which of the following? (PMC MDCAT 2022)

  1. Rods only
  2. Cones only
  3. Rods and cones
  4. Retina
Show answer

Correct answer: (c) Rods and cones

Where the optic nerve leaves the retina there are no rods or cones, so nothing is seen.

7.The photosensitive cells present in the retina that are sensitive to dim light are called? (PMC MDCAT 2022)

  1. Optical disc
  2. Rods
  3. Cones
  4. Ligaments
Show answer

Correct answer: (b) Rods

The rods work at low light levels and give no colour.

8.The disorder which is caused when cones cannot distinguish between different colors is called? (PMC MDCAT 2022)

  1. Short sighted vision disorder
  2. Night blindness
  3. Long sighted vision disorder
  4. Color blindness
Show answer

Correct answer: (d) Color blindness

When a class of cone is missing or faulty, colours cannot be told apart.

9.Touch receptors are (NUMS MDCAT 2022)

  1. Paccinian's corpuscles
  2. Olfactory receptors
  3. Miessner's corpuscles
  4. Nociceptors
Show answer

Correct answer: (c) Miessner's corpuscles

Meissner’s corpuscles in the upper skin respond to light touch.

10.Taste buds on the tongue are example of: (UHS MDCAT 2018)

  1. Pressure receptors
  2. Chemoreceptors
  3. Thermoreceptors
  4. Photoreceptors
Show answer

Correct answer: (b) Chemoreceptors

Taste buds respond to molecules dissolved in saliva, so they are chemoreceptors.

More in Coordination and Control