Cell Cycle 1
What are the three main phases of the cell cycle?
Interphase
Mitosis
Cytokinesis
During which phase of the cell cycle is chromatin (DNA) replicated?
Interphase (S Phase)
What phase of the cell cycle does a cell spend most of its time?
Interphase
What is one reason that cells go through the process of cell division?
growth or repair
What happens to the chromosomes during metaphase?
Line up in the center of the cell
Which phase of the cell cycle is the period of growth and development?
Interphase
During which phase do the nucleus divide?
Mitosis
What anchors the spindle microtubules in animal cells?
centrioles
Name 2 differences in animal and plant cell division.
Animal cells have centrioles, plant cells do not.
Animal cells form a cleavage furrow during cytokinesis, plant cells form a cell plate.
What are the 3 stages of Interphase?
G1, S, G2
What is considered the growth phases of Interphase?
G1 and G2 Phases
What happens during the G1 stage in the Interphase?
Cell grows
Carries out normal cellular funtions
What happens in the S stage of Interphase?
DNA replication
What happens in the G2 phase of Interphase?
Preparation for cell division
What happens during cytokinesis?
Cytoplasm and its contents divide and form 2 identical cells.
What is the difference between mitosis and cytokinesis?
In mitosis, the nucleus (DNA) and its contents divide.
In cytokinesis, the cytoplasm and its contents divide.
What makes up a chromosome?
2 sister chromatids attached at the center by a centromere.
How is the cell cycle important to some unicellular organisms?
It allows some unicellular organisms to reproudce by producing 2 identical organisms from 1 parent organism.
How is the cell cycle important to multicellular organisms?
It allows them to produce more cells for growth, to replace cells, and to repair damage.
When do sister chromatids separate? (which phase of mitosis?)
During anaphase
What disappears during prophase?
The nuclear membrane disappears
What types of cells go through the cell cycle?
body cells or somatic cells
During what phase does the cytoplasm and its contents divide into two daughter cells?
Cytokinesis
What are the 4 parts in mitosis of the cell cycle? (in order)
Prophase, Metaphase, Anaphase, Telophase
When are two identical nuclei formed and a cleavage furrow appear?
Telophase