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Stem Cell Culture and Organ Culture — Revision Notes

CBSE · Class 12 · Biotechnology

Stem Cell Culture and Organ Culture revision notes for CBSE Class 12 Biotechnology: 4 topics in quick points. Includes Stem Cells: Core Idea.

70 questions64 flashcards5 concepts

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A flowchart illustrating the journey from a zygote to a variety of specialized cells, highlighting the role of stem cells as immature cells with self-renewal and differentiation potential.
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Key Topics to Revise

1

1. Stem Cells: Core Idea and Classification

  • Stem cells are non-specialised, immature cells that can self-renew by mitotic cell division and differentiate into a wide range of specialised cell types.
  • The first stem cells were isolated from blood cells.
  • In humans, stem cells are found in the umbilical cord, placenta, inner cell mass of the early embryo, few tissues of the foetus, and in some adult organs.
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2. Stem Cells Based on Source

  • Embryonic stem cells are also called early stem cells.
  • Embryonic stem cells are present in the inner cell mass of the blastocyst after around five days of development.
  • Embryonic stem cells are self-reproducing pluripotent cells and are possibly immortal.
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3. Stem Cells Based on Potency

  • Totipotent stem cells are the most versatile stem cells.
  • Totipotent cells can produce the embryo, extra-embryonic membranes, and all post-embryonic tissues and organs that form a complete organism.
  • The zygote is a totipotent cell.
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4. Adult Stem Cell Types and Plasticity

  • Hematopoietic stem cells are found in bone marrow and also in fetal blood and fetal bone marrow.
  • Hematopoiesis is the formation of different blood cells in bone marrow.
  • HSCs give rise to RBCs, monocytes, neutrophils, acidophils, basophils, lymphocytes, and platelets.

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Full Notes

Key Concepts

Stem cells are nonEmbryonic stem cells are selfFetal stem cells are derived fromAdult stem cellsHematopoietic stem cells are found

Frequently Asked Questions

What are the important topics in Stem Cell Culture and Organ Culture for CBSE Class 12 Biotechnology?
Key topics in Stem Cell Culture and Organ Culture include Stem Cells: Core Idea and Classification, Stem Cells Based on Source, Stem Cells Based on Potency, Adult Stem Cell Types and Plasticity. Study these first, then practise questions on each for the CBSE Class 12 board exam.
How should I revise Stem Cell Culture and Organ Culture for the CBSE Class 12 board exam?
Learn the core ideas first, then work through the 70 practice questions on Stem Cell Culture and Organ Culture. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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