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This is an axolotl salamander.
What process occurs in salamanders, such as the axolotl, which allows them to regenerate missing body parts?
Mitosis
Cytokinesis
Cancer
DNA replication
Which type of human body part cannot regenerate naturally?
Little toe of a 40-year-old woman
Fingertip of a 4-year-old boy
Skin of a 24-year-old man
Liver of a 50-year-old woman
In Canada, young people grow to become adults and take jobs that serve a specific role in our economy and society. Everyone starts as a child with the potential to fill almost any of the jobs available. Which part of the biotic systems of cells does this situation resemble?
Cell specialization
Cell division
Apoptosis
Regeneration
All cells in an organism’s body come from an early group of cells, when the organism is nothing but a small group of cells. These cells undergo mitosis like normal cells, but are different because they can become any kind of cell in the body, or stay unspecialized, as they divide. What is the name of cells that are unspecialized, and can develop to become any kind of cell in the human body?
Stem cells
Young cells
Mitotic cells
Meristematic cells
Why are doctors and scientists so interested in stem cells?
Stem cells have the potential to become replacement cells for people with injuries or diseases
Stem cells boost the immune system and cause injuries to heal faster than normal
Stem cells can reverse the aging process, allowing normal cells to get younger instead of older and preventing the effects of old age
Stem cells have organelles that can be removed and inserted into normal cells, which is like a restart in the normal life cycle of the cell
What is the primary difference between where embryonic stem cells and adult stem cells are found in the bodies of their organisms?
Embryonic stem cells are found almost everywhere in the embryo, but adult stem cells are only found in a few places in an adult organism
Embryonic stem cells are found in a few places in the embryo, but adult stem cells are found almost everywhere in an adult organism
Embryonic stem cells are found in a small bunch in the centre of the embryo, but adult stem cells are found in random locations in an adult organism
Embryonic stem cells are very rare in the embryo, but adult stem cells can be tricked into appearing almost anywhere in an adult organism
Which of the following is an example of differentiation?
An embryonic stem cell divides to form two daughter blood cells
An embryonic stem cell divides to form two daughter stem cells
An adult skin cell divides to become form two daughter skin cells
An adult stem cell divides to form two daughter stem cells
In plants, stem cells are found in areas where very rapid growth is required. In which of the following parts of a plant would stem cells likely be found?
The tip of the root
The petal of a flower
The bottom of a leaf
Anywhere in the seed
This diagram illustrates the process of cell differentiation.
A, B and C are three different kinds of cells. Which cell type is a differentiated cell?
