Chapter 11 Flashcards
Cell grows more to prepare for division
G2
Cells grow and do normal function
G1
Chromatids move toward opposite poles
Anaphase
Chromosomes move to center of cell
Metaphase
Division of the cytoplasm, making two cells
Cytokenesis
DNA coils into chromosomes, spindle forms
Prophase
DNA is replicated
S Phase
Nuclear envelope re-forms, DNA relaxes
Telophase
The nucleus of a cell divides
Mitosis
Entire time between cell divisions, normal cell function
Interphase
Limits to cell size =
Ratio of surface area to volume
Why? (Ratio of surface area to volume)
Transport of nutrients and wastes
Plasma membrane strength
Info spread from DNA
Mitosis
Division of nucleus
After mitosis and cytokinesis…
Each new cell will have an exact copy of the chromosomes
Apoptosis
Planned cell death
Spindle fibers are made of…
Microtubules that help with mitosis
During interphase spindle fibers form the…
Cytoskeleton
Polar fiber stretches from…
Centriole to centriole
Polar fibers guides the chromosomes to the cell ends…
Toward the pole
Kinetic horse fibers stretches from
Centriole to centromere
Kinetochore fiber pulls the chromosomes by the center structure, the….
Centrosomes
DNA/Chromosomes…
Contain all instructions to direct cell function
Human DNA
23 pairs
Each chromosomes can contain thousands of…
Genes
