Cell Differentiation Flashcards
The information about cell differentiation
During the development of an organism, cells _____ into many types of cells
differentiate
All organisms start life as just _____ cell
one
Most multicellular organisms pass through an early stage of development called an _____, which gradually develops into an adult organism
embryo
During _____, an organism’s cells become more differentiated and specialized for particular functions
development
The process by which cells become _____ is known as _____.
specialized; differentiation
During development, cells differentiate into many different types and become specialized to _____ _____ _____.
perform certain tasks
Differentiated cells carry out the _____ that multicellular organisms need to stay alive
jobs
In some organisms, a cell’s _____ is determined at a specific point in development
role
Cell differentiation in mammals is controlled by a number of interacting factors in the _____
embryo
_____ cells generally reach a point at which their differentiation is complete and they can no longer become other types of cells
Adult
The unspecialized cells from which differentiated cells develop are known as _____ _____
stem cells
One of the most important questions in biology is how all of the specialized, differentiated cell types in the body are formed from just a _____ _____
single cell
Biologists say that a cell that is literally able to do everything, to form all the tissues of the body is _____
totipotent
Only the _____ _____ and the cells produced by the first few cell divisions of embryonic development are truly totipotent
fertilized egg
After about four days of development, a human embryo forms into a _____, a hollow ball of cells with a cluster of cells inside known as the inner cell mass.
blastocyst
