NEET BIOLOGY

Detailed explanation-1: -Tissue culture – Tissue culture (or cell culture) is a way to grow cells in a laboratory. Cells are taken, and put into in a flask or Petri dish and cultured on a growth medium. The cells divide, and can be treated in various ways. This is done for a number of purposes, especially for the use of scientific research.

Detailed explanation-2: -Now-after nearly a decade of figuring out how to make cells grow, organize, and specialize into 3D structures similar to human tissues, scientists have created a veritable zoo of “organoids, ” including livers, pancreases, stomachs, hearts, kidneys, and even mammary and salivary glands.

Detailed explanation-3: -While more complex organ tissues like heart, lung, and liver tissue have been successfully recreated in the lab, they are a long way from being fully reproducible and ready to implant into a patient. These tissues, however, can be quite useful in research, especially in drug development.

Detailed explanation-4: -Tissue Engineering is the science of growing replacement organs and tissue in the lab to replace damaged or diseased tissue. The process usually starts with a three-dimensional structure called a scaffold that is used to support cells as they grow and develop.

Detailed explanation-5: -In order to grow organoids in the lab, scientists typically embed stem cells inside of this matrix. A popular one is called Matrigel. It is a gelatinous mixture of proteins, like collagen, that is secreted by mouse cancer cells. The stem cells, lodged inside of this adhesive matrix, are spun around in their chamber.