Life of a Cell
Do your cells have life cycles? If so, what is it called?
Yes, called the cell cycle
What is DNA?
DNA is a heredity material that organizes or controls all cell activities, including making new cells
What are the results of binary fission?
Result- two cells that each contain one copy of DNA
How many stages of the "E" cell?
3
What is cytokinesis?
- the divison of the cytoplasm of a cell
When does the cell begin and end this cycle?
Begins- when the cell is formed
Ends- when the cell divides and forms new cells
What is the DNA of a cell?
Organized into structures called chromosomes
Eukaryotic cells contain more DNA than prokaryotic cells. True or False
True
What does each "E" stage do?
1) Interphase- cell grows and copies chromosomes and organelles
2) Chromosomes twist, coli, and condense into an "X" shape. Then chromosomes seperate, this is called mitosis
3) the cell splits into two more cells.
Eukaryotic: do all "e" cells have cell walls?
No...
Do/Can cells divide? If so, what does it do before?
Yes, before it divides it MUST make a copy of the DNA
What do chromosomes do when they copy?
When copying, chromosomes make sure each new cell is an exact copy of its parent cell
Eukaryotic cells are all the same kind of complex. True or False
False... there are some "E" cells that are even more complex than the simple "E" cells
What is the "X" shape chromosome?
The "X" shaped chromosome are made up from two chromatids which are held together at the centromere
When is cytokinesis in the four stages?
After Telophase
What are chromosomes made of?
DNA and protein
Prokaryotic cells: are more complex than eukaryotic cells. True or False
False
What are homologus chromosomes?
Human body chromosomes
What are the four stages of Mitosis?
Prophase- Metaphase- Anaphase- Telophase
True/False- Eukaryotic cells that have a cell wall reproduce the same as regular "E" cells
False... they reproduce differently
Does it matter to have a nucleus, to make more cells?
Yes, it depends if the prokaryotic cell (no nucleus) or a eukaryotic cell (with a nucleus)
What is binary fission? What does it mean?
Binary fission is cell division in bacteria
It means "splitting into two parts"
What is mitosis?
-"in eukaryotic cells, a process of cell division that forms two new nuclei, each of which has the same number of chromosomes"
What does mitosis ensure?
Mitosis ensures each new cell receives a copy of each chromosome
Where do cell plates form and what does it contain?
It forms in the middle of the cell and contains materials for the new cell membranes and the new cell walls that will separate the new cells