Cell Cycle 1
Which phase takes up 90% of a cells life and is the period of growth and development?
Interphase
During which phase of the cell cycle is chromatin (DNA) replicated?
Interphase (S Phase)
What is the phase in which a cell spends most of its time?
During what phase does the cytoplasm and its contents divide into two daughter cells?
Cytokinesis
What do the chromosomes do during metaphase?
Line up in the center of the cell
What types of cells undergo mitosis?
Somatic cells
During which phase do the nucleus divide?
Mitosis
How many stages are there in the Interphase phase of the cell cycle?
Somatic cells
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
When do sister chromatids separate? (which phase of mitosis?)
During anaphase
What disappears during prophase?
The nuclear membrane disappears
What makes up a chromosome?
2 sister chromatids attached at the center by a centromere.
Eggs and sperm in plants, and pollen and ovules in plants are examples of what types of cells?
Gametes
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
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.
How would 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.
What is one reason that cells go through the process of cell division?
To replace old cells, for growth or for repair
What happens during cytokinesis?
Cytoplasm and its contents divide and form 2 identical cells.