Biology, asked by Kingkhan1111111111, 1 year ago

Which is used as preservation of cornea of eye?
1)NO
2)H2S
3)N2
4)NO2.

Answers

Answered by kingofself
3

H_{2}S is used as preservation of corna of eye.

Explanation:

  • There are three main approaches to the preservation and storage of the corneas which containing living cells; viz. organ culture, hypothermia, and cryopreservation.
  • Only the finished of these currently suggested the prospect of a completed depository time.
  • Techniques for corneal cryopreservation were developed in the year 1960s and which is applied clinically.

To know more:

Explain the working of human eyes?​

https://brainly.in/question/14656902

Answered by pr264428
3

Answer:

Preservation of cornea is done in liquid nitrogen. (N2)

Explanation:

  • Liquid Nitrogen has a temperature of -196 degree Celsius.
  • Cryopreservation :
  1. To the cornea is added an anti-freezing agent like glycerol or ethanol.
  2. The anti-freezing agent  prevents the formation of ice-crystals inside the cells of the cornea.
  3. This way the cells of the cornea are protected from getting ruptured or torn as a result of freezing and thawing.
  • The cornea in the anti-freezing agent is kept in liquid nitrogen. The low temperature of liquid nitrogen prevents degeneration of the cornea tissue.
  • This way the cornea is kept viable until transplantation is done.

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