Table of Contents
- 1 What Happens When a stem cell divides by mitosis?
- 2 What is produced when a stem cell divides?
- 3 Do differentiated cells divide?
- 4 Why stem cells function differently from differentiated cells?
- 5 How do stem cells differentiate into various cells and how would you characterize each of these types of stem cells?
- 6 Why can embryonic stem cells differentiate?
What Happens When a stem cell divides by mitosis?
During these processes, the cell undergoes a type of cell division called mitosis . In mitosis, two cells called daughter cells are produced. It is essential that any new daughter cells produced contain genetic information that is identical to the mother cell, and that the number of chromosomes remains constant.
What is produced when a stem cell divides?
Usually, when a stem cell divides into two, one daughter cell goes on to make a more specialized type of cell, or even gives rise to several different cell types. These are known as embryonic stem cells or ES cells, and they have the potential to produce all the cell types in the human body.
Do stem cells differentiate by mitosis?
Stem cells do divide by mitosis and this makes them very important for replacing lost or damaged specialized cells. What is a stem cell? Stem cells are different from other cells of the body because stem cells can both: 1. Differentiate: Make other types of cells – specialized cells of the body.
How do tissue stem cells differ from embryonic stem cells?
Tissue-specific stem cells (also referred to as somatic or adult stem cells) are more specialized than embryonic stem cells. Tissue-specific stem cells can be difficult to find in the human body, and they don’t seem to self-renew in culture as easily as embryonic stem cells do.
Do differentiated cells divide?
A few types of differentiated cells never divide again, but most cells are able to resume proliferation as required to replace cells that have been lost as a result of injury or cell death. In addition, some cells divide continuously throughout life to replace cells that have a high rate of turnover in adult animals.
Why stem cells function differently from differentiated cells?
The second difference is that stem cells are generally pluripotent, that is, they have the potential to produce different types of differentiated cells (for example, the marked stem cells that produced the white sectors in Figure 3 gave rise to all the different cell types that make up a leaf).
Why can only stem cells differentiate?
Stem cells do not display a particular morphology or function. Adult stem cells, which exist as a small subset of cells in most tissues, keep dividing and can differentiate into a number of specialized cells generally formed by that tissue. These cells enable the body to renew and repair body tissues.
What is the difference between a stem cell and a differentiated cell quizlet?
Stem cells have the potential to become any type of cell once they are further along in development. Differentiated cells, on the other hand, already have a set purpose and can only become one type of cell when they develop and mature. You just studied 5 terms!
How do stem cells differentiate into various cells and how would you characterize each of these types of stem cells?
Adult stem cells are said to be multipotent, which means they can only change into some cells in the body, not any cell, for example: Blood (or ‘haematopoietic’) stem cells can only replace the various types of cells in the blood.
Why can embryonic stem cells differentiate?
Embryonic stem cells – These are found in an early embryo. These cells are able to divide continuously. All the genes in an embryonic stem cell can be expressed so they can give rise to all types of cell. Their function is to replenish differentiated cells that need to be replaced.