A
According to cell theory, what is the basic unit of life?
Cells are the basic unit of life
____________ is DNA that is loose and accessible
Chromatin
When do we stop at checkpoints during the cell cycle?
Between G1 and S
Between S and G2
Between G2 and mitosis
What happens during telophase?
Which cells in the body are capable of self-renewal and differentiation into specialized cell types?
Stem cell
What does cell theory say about where cells come from?
All cells come from a pre-existing cell - not spontaneous
What is happening during synthesis?
The DNA is replicating (making a copy of itself)
What does the acronym PMAT stand for?
Prophase
Metaphase
Anaphase
Telophase
What happens during prophase?
The cell is PREPARING to divide, the nuclear membrane dissolves and DNA condenses into chromosomes
If the following represents chromosomes.
How many chromatids are there?
X X X
6
What are all living things made of?
Cells
How is cytokinesis different from mitosis?
The cytoplasm divides completely in cytokinesis
Mitosis is the division of the nucleus
What is the purpose of mitosis?
What is the key factor that determines the fate of a cell during differentiation?
Gene expression
What is mitosis?
The process of dividing 1 cell into 2 daughter cells
When the rest of the cell divides, it is not part of mitosis, and the individual chromosomes are not visible
Cytokinesis
Programmed cell death
What is cell division called in bacteria?
Binary Fission
How does the environment surrounding a cell influence its differentiation process?
Signals from neighboring cells, such as growth factors and chemical cues, guide differentiation.
What is happening during interphase?
The cell is resting & doing normal cell functions
Half of a replicated chromosome
Sister chromatids
chromatids
What happens during anaphase?
The chromosomes are pulled APART into chromatids
What happens to the nuclear membrane during prophase and why is this important for mitosis?
It dissolves
Which process is responsible for creating specialized cells such as muscle cells, nerve cells, and blood cells from stem cells?
Cell differentiation