Biology Practice Questions MCQs


Channel's geo and language: India, English
Category: Medicine


This channel provides Biology MCQs and topical Quizes for our High School students.

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Which of the photoreceptors cells are most sensitive to light?
Poll
  •   Rods
  •   Cones
  •   Both
11630 votes


Which of the following structures is a component of reflex arc?
Poll
  •   afferent neurone
  •   efferent neurone
  •   sensory organ
  •   effector organ
  •   all of the above
8353 votes


The peripheral nervous system includes the:
Poll
  •   somatic nervous system
  •   brain
  •   spinal cord
  •   nuclei
9304 votes


The following reflexes are all autonomic Except:
Poll
  •   salivary secretion
  •   micturition
  •   flexion of the arm following a painful stimulus
  •   acceleration of the heart
7077 votes


A nerve impulse is first received by ___________
Poll
  •   axon
  •   soma
  •   synapse
  •   dendrite
8610 votes


Gaps in myelin sheath are called as __________
Poll
  •   synapse
  •   myeliniods
  •   nodes of Ranvier
  •   myelin sheath
8157 votes


Which among the following is a structural and functional unit of the nervous system?
Poll
  •   neurone
  •   brain
  •   spinal cord
  •   nephron
7957 votes


Which of the following prevents internal reflection of light inside the eye?
Poll
  •   cornea
  •   sclera
  •   choroid
  •   retina
7499 votes


Which of the following animal produces high frequency sound?
Poll
  •   monkey
  •   squirrel
  •   bat
  •   lion
7733 votes


A person goes to ophthalmologist. He has a problem of reading books because he is not able to contract his ________
Poll
  •   iris
  •   pupil
  •   lens
  •   ciliary muscles
  •   suspensory ligaments
6507 votes


Color perception in man is due to _______
Poll
  •   rhodopsin present in rod cells
  •   iodopsin present in cone cells
  •   rhodopsin present in cone cells
  •   rhodopsin present in rod cells
5438 votes


The purplish red pigment rhodopsin contained in rods type of photoreceptor cell is a derivative of ______
Poll
  •   vitamin B1
  •   vitamin A
  •   vitamin C
  •   vitamin D
5530 votes


Color blindness is due to defect in ________
Poll
  •   cones
  •   rods
  •   rods and cones
  •   rhodopsin
6399 votes


The inner most layer of human eye is _____
Poll
  •   sclera
  •   conjuctiva
  •   Choroid
  •   retina
6364 votes


Which of the following is balancing organ?
Poll
  •   organ of corti
  •   cochlea
  •   vestibular region
  •   eustachian tube
5497 votes


Sequence of ear ossicles from outside to inside is ____________
Poll
  •   malleus incus stapes
  •   incus stapes malleus
  •   stapes incus malleus
  •   malleus stapes incus
4832 votes

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