Meiosis & Cell Cycle Regulation Flashcards
How is the cell cycle regulated? Distinguish between internal and external regulation. Describe the role of Cyclins in the Cell Cycle
The cell cycle is regulated because the cycle contains regulatory proteins on the inside and outside of the cell. It also regulates when the cell should grow and divide. Internal regulation is a protein that responds inside the cell, and it helps the cell cycle to proceed when certain events occur. External regulation have proteins that direct the cells to speed up or slow down the cell cycle.
What is the purpose of apoptosis
Apoptosis is the programmed of cell death. The purpose is to shape the tissue and organs in an animals and plant cells.
How do cancer cells differ from noncancerous cells?
Cancer is the ability that a cell looses the ability to grow/i in control. Cancer cells differ from noncancerous cells because they do not responde to the signals given to them, that regulate the cell growth in most cells.
What are some of the causes of cancer? What are some of the treatments of cancer?
Many cancers are caused by the defects in a persons genes, which regulate cell growth and division. Some ways that cancer can be treated are surgically removed if it has been spotted early in the process, radiation-beams of radiation, and chemotherapy. Chemotherapy is the process which has 6 stages, and it targets rapidly dividing cells, but it also interferes with regular cell division in normal healthy cells.
What are stem cells? What are some of the possible benefits associated with stem cell research?
Stem cells are unspecialized cells that form when differentiated cells develop. Some benefits of stem cell research is using undifferentiated cells to make repairs, replace the badly damage cells, and tissues. An ethical research for stem cells, that harvesting them will lead to damage, and lead to death of the embryo
Apoptosis
process of programmed cell death
Cancer
disorder in which some of the body’s cells lose the ability to control growth
Cyclin
one of a family proteins that regulates the cell cycle in eukaryotic cells
Differentiation
process in which cells become specialized in structure and in function
Embryo
developing stage of a multicellular organism
Growth factor
one of a group of external regulatory proteins that stimulate the growth and division of cells
Metastasis
…
Pluripotent
cells that are capable of developing into most, but not all, of the body’s cell types
Regulation
…
Stem Cells
unspecialized cell that can give rise to one or more types of specialized cells
Totipotent
cells that are able to develop into any type of cell found in the body (including the cells that make up the extraembryonic membranes and placenta)