Cell Divison Flashcards
(40 cards)
What happens during Interphase S Stage
Synthesis stage
DNA is copied or replicated
3 things during Interphase G1 Stage
1st growth stage after cell division
Cells mature by making more cytoplasm and organelles
Cell carries on its normal metabolic activities
Interphase G2 Stage
2nd growth stage
Occurs after DNA has been copied
All cell structures needed for division are made (e.g. centrioles)
Both organelles and proteins are synthesized
What is mitosis?
Nuclear division
What is cytokinesis
Cytoplasm dividing
What phase is the Mitotic spindle forms from fibers in cytoskeleton or centrioles.
Early prophase
When does Chromatin in nucleus condenses to form visible chromosomes
Early prophase
When phase does Nuclear membrane and nucleolus are broken down and Chromosomes continue condensing and are clearly visible.
Late prophase
What phase does Spindle fibers called kinetochores attach to the centromere of each chromosome.
Spindle finished forming between the poles of the cells
Late prophase
Chromosome lined up at the equator, attached to the kinetochore fibers.
Metaphase
Occurs rapidly
Sister chromatids are pulled apart to opposite pokes of the cell by kinetochore fibers
Anaphase
Sister chromatids at opposite poles.
Spindles disassembles.
Nuclear envelope firms around each set of sister chromatids
Telophase
Nucleolus reappears
Cytokinesis occurs
Chromosomes reappear as chromatin
Telophase
What is cytokinesis
The division of cytoplasm
Do animal cells or plant cells have centrioles
Animal cells
What cell has the cell membrane drawn inward and the cytoplasm pinched into 2 equal parts
Animal cells
What cell has cell plate developing into a separating membrane?
Plant cell
What is an embryonic stem cell?
Unspecialized cells that have the potential to become a wide variety of specialized cells
What are adult stem cells?
Found in umbilical cord and bone marrow
What is asexual reproduction
New organism produced from a single parent or cell
What is binary fission
Equal division of an organism
Cytoplasm divided equally
Produced 2 identical organisms
What is budding
Mitotic division of the cytoplasm
Organisms develop a smaller outgrowth
Cytoplasm does not divide equally
What is sporulation
Spores produced by the mitotic cell division
Spores release and develop into new organisms under the right conditions
What is regeneration
Organisms grow back missing parts or grow into a new organism
