16 Questions
Which of the following is a characteristic of non-proliferative cells according to the text?
They have short life spans and must be replaced by continuous cell proliferation
What is the role of stem cells in the process of cell replacement in differentiated tissues?
Stem cells divide to produce daughter cells that can either differentiate or remain as stem cells
Which type of cells are characterized by continuous division throughout life in adult animals?
Fibroblasts
What is a common feature of fully differentiated cells in adult animals?
They remain arrested in the G0 stage of the cell cycle
In which type of cell division do stem cells produce daughter cells that will remain as stem cells?
Symmetric division
Which tissues have fully differentiated cells that must be replaced by continuous cell proliferation?
Skin and epithelial cells lining the digestive tract
What is cell proliferation defined as in the text?
Increase in cell number caused by cell growth and division
Which type of stem cells are predefined to differentiate into a specific lineage according to the text?
Hematopoietic stem cells
What is the main difference between apoptosis and necrosis as mentioned in the text?
Apoptosis is cell death mediated by an intracellular program, necrosis is caused by infection or injury
What does pluripotency refer to according to the text?
The ability to give rise to all differentiated cell types of ectoderm, endoderm and mesoderm
What is one common activity where cell migration plays a crucial role according to the text?
Embryonic development
During differentiation, what changes occur in a cell according to the text?
Change in membrane potential and responsiveness to signals
What is growth death as defined in the text?
Biological cell ceasing to carry out its functions
What is the primary purpose of differentiation as mentioned in the text?
To fit cells' functionality by changing size and shape
In which phase of the cell cycle does growth primarily occur according to the text?
G1 phase
What is necrosis primarily caused by according to the text?
External factors like infection or injury
Explore the key developmental processes including proliferation, migration, differentiation, growth, and cell death in early embryonic development. Learn how cells proliferate, differentiate, and migrate to form specialized tissues and organs in the body.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
