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Question
Explain the following term:
Stem cells
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Solution
These are special types of cells present in the body of multicellular organisms. These cells give rise to all other types of cells present in the body of multicellular organisms.
A new organism is formed from the zygote that is formed by the union of male and female gametes. At the earliest stage of development, the organism is in the form of a mass of cells. All the cells in that mass are almost alike. Those cells are called stem cells.
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RELATED QUESTIONS
What are stem cells?
At the earliest stage of development, the organism is in the form of a mass of a cell, which are almost alike, those cells are called ____________.
Cell _____________ starts from 14th day of conception.
____________ are present in the umbilical cord by which the foetus is joined to the uterus of the mother.
The number of different types of cells in the human body that are formed from embryonic cells.
Name the following.
Cells that are present in the initial development stage of zygote, that is formed by theunion of male and female gametes.
Observe the following figure and answer the questions.
- Which property of stem cell is shown in the figure?
- Write the name of the cells or organs denoted by X and Y.
- What is the benefit of tissue/organ culture from stem cells?
Complete the paragraph.
(red bone marrow, degenerated, umbilical cord, adipose, division, blastocyst)
Different tissues of the body are formed by _______ of stem cells. Stem cells are present in the _______ by which the fetus is joined to the uterus of the mother. Stem cells are also present in the _______ stage of embryonic development. Stem cells are present in _______ and _______ connective tissue of adult human beings. It has become possible to produce different types of tissues and the _______ part of any organ with the help of these stem cells.
Observe the given figure and answer the following questions.
- What is shown in the figure?
- What can the stem cells make in this figure?
- What can these stem cells transform into?
Identify the given figure and label it.
______ cells are undifferentiated mass of cells.
Name the types of stem cells
Distinguish between
undifferentiated cells and differentiated cells
How are stem cells useful in regenerative process?
- Which process is shown in the given diagram?
- What is the importance of this process?
- Which organs can be transplanted by this process?
