Prep for Cell Division Flashcards
(18 cards)
What is proliferation?
The rapid copying and dividing of cells
What is cell division?
The process of one cell that subdivides into multiple new cells
When the cell gets physically larger and has more cytoplasm
Cell growth
What is cell proliferation?
The combination of division and growth. It increases the number of cell through cell division.
What controls gene patterns?
Cell Differentiation
What are some examples of cell differentiation?
Neurons or Red Blood Cells
How does bacteria divide?
By binary fission
Does bacteria have a sexual life cycle?
No. They replicate via “clonal reproduction”
What does the septum do?
It forms to divide the cell into two cells and eventually pinch them apart
True or False: Bacteria has one circular chromosome?
True!
True or False: bacteria has a nucleus?
False; it has a nucleoid but no nucleus
What is FtsZ?
it is a special molecule only found in prokaryotes (specifically bacteria only) It forms a ring around the pinch point. When the ring contracts, it squeezes the cytoplasm out of the ring.
This is a colored body named for fluorescent staining during early research
Chromosome
How are chromosomes arranged?
Size (Karyotype), staining properties, and location of the centromere
How many chromosomes do eurkaryotic cells have?
Typically 10 to 50
How many chromosomes are in a human chromosome?
46; 23 from each parent
Chromosomes are made up of one of these before duplication
Chromatid
