SGS 141- Zoology
What's cancer?
Cancer is a category of disorders defined by uncontrolled cell proliferation
and cell invasion and spread from the site of origin to other areas in the
human body
Characteristics of cancer cells
Cancer cells lack differentiation.
Cancer cells have abnormal nuclei.
Cancer cells have unlimited potential to
Replicate.
Cancer cells form tumors.
Cancer cells disregard growth factors.
Cancer cells undergo Angiogenesis and
Metastasis
1-Cancer cells lacks differentiation
Differentiation: the process through which a cell requires a certain form
and function.
Red blood cells, for example, are specialized cells in the circulatory system.
Cancer cells, on the other hand, are non-specialized and do not resemble
differentiated epithelium, muscular, neuronal, or connective tissue cells.
Instead, it appears weird.
, 2-Cancer cells have abnormal nuclei
Cancer cells' nuclei are swollen and may include an abnormal number of
chromosomes.
Cancer cells contain faulty chromosomes in addition to abnormalities, and
certain chromosomes may be duplicated or eliminated.
Apoptosis normally occurs in cells with damaged DNA (programmed cell
death).
Cancer cells are unable to undergo apoptosis.
3-Cancer cells have unlimited potential to
replicate
Human chromosomes are terminated by telomeres, which are unusual
repeating DNA sequences.
Telomeres: a segment of repeating DNA at the end of a chromosome that
protects the end of the chromosome from degeneration, whereas cancer
cells have a longer section to allow them to proliferate.
4-Cancer cells form tumors
Cancer cells have lost all control; they multiply and duplicate
uncontrollably, and they serve no physiological function.
These cells are now known as Neoplasm.
This neoplasmic mass frequently becomes a cluster of cells known as a
tumor.
What's cancer?
Cancer is a category of disorders defined by uncontrolled cell proliferation
and cell invasion and spread from the site of origin to other areas in the
human body
Characteristics of cancer cells
Cancer cells lack differentiation.
Cancer cells have abnormal nuclei.
Cancer cells have unlimited potential to
Replicate.
Cancer cells form tumors.
Cancer cells disregard growth factors.
Cancer cells undergo Angiogenesis and
Metastasis
1-Cancer cells lacks differentiation
Differentiation: the process through which a cell requires a certain form
and function.
Red blood cells, for example, are specialized cells in the circulatory system.
Cancer cells, on the other hand, are non-specialized and do not resemble
differentiated epithelium, muscular, neuronal, or connective tissue cells.
Instead, it appears weird.
, 2-Cancer cells have abnormal nuclei
Cancer cells' nuclei are swollen and may include an abnormal number of
chromosomes.
Cancer cells contain faulty chromosomes in addition to abnormalities, and
certain chromosomes may be duplicated or eliminated.
Apoptosis normally occurs in cells with damaged DNA (programmed cell
death).
Cancer cells are unable to undergo apoptosis.
3-Cancer cells have unlimited potential to
replicate
Human chromosomes are terminated by telomeres, which are unusual
repeating DNA sequences.
Telomeres: a segment of repeating DNA at the end of a chromosome that
protects the end of the chromosome from degeneration, whereas cancer
cells have a longer section to allow them to proliferate.
4-Cancer cells form tumors
Cancer cells have lost all control; they multiply and duplicate
uncontrollably, and they serve no physiological function.
These cells are now known as Neoplasm.
This neoplasmic mass frequently becomes a cluster of cells known as a
tumor.
