Multiple Choice Questions

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Striped muscles are characterized by

  • syncytial 

  • spindle shape

  • uninucleate

  • none of these


A.

syncytial 

Striated muscle or skeletal muscle or voluntary muscle or striped muscle fibre is an elongated cell surrounded externally by sarcolemma. Just beneath the sarcolemma in each fibre, many nuclei occur at irregular intervals. Thus, these fibres are multinucleated or syncytial in nature.


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In frog heart, there are cardiac muscles which consists of fibres called

  • Purkinje fibres

  • myonemes

  • telodendria

  • columnae carnae


Malphigian tubules are

  • excretory organs of insects

  • excretory organs of frog

  • respiratory organs of insects

  • endocrine glands of insects


Compond squamous epithelium is found in

  • stomach

  • intestine

  • trachea

  • pharynx


Striped muscles are

  • anucleate

  • binucleate

  • uninucleate

  • syncytial


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Inner lining of blood vessels is formed by

  • ciliated epithelium

  • squamous epithelium

  • cubical epithelium

  • columnar epithelium


Nucleated RBC is present in

  • man

  • rat

  • frog

  • rabbit


In frog chromosome number is reduced to half

  • when 2nd polar body is separated

  • when 2nd polar body is divided

  • when 3rd polar body is separated

  • when 1st polar body is separated


The figure shows different human tissues labelled as A to D. Which option gives the correct identification of the label, its location and one feature.

  • D-Unicellular glandular epithelium, goblet cells, secrete saliva

  • B-Squamous epithelium, walls of blood vessels, form a diffusion boundary

  • A-Cuboidal epithelium, ducts of glands, secretion and absorption

  • C-Columnar epithelium, lining of stomach, secretion and absorption


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Pacinian corpuscles occur in the skin of certain parts of body in mammals. These are

  • type of glands

  • pain receptors

  • naked tactile receptors

  • encapsulated pressure receptors.


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