cell cycle and mitosis

Question 1

steps of cell cycle

Answer 1

Interphase (G1,S,G2)
Mitosis
Cytokinesis

Question 2

G0 phase

Answer 2

Some cells do NOT go through the entire cell cycle.
These cells enter G0 phase or or resting state.
Cells no longer reproduce
Ex: Nerve cells

Question 3

phases of interphase

Answer 3

G1 - Growth and Development

S - DNA Synthesis

G2 - Get ready for mitosis

Question 4

mitosis

Answer 4

Mitosis is the division of the nucleus and the replicated DNA.
Cytokinesis is the division of the cytoplasm (NOT part of mitosis).
A parent cell produces two daughter cells with exact same DNA.

Question 5

more mitosis

Answer 5

We need new cells because we grow, and some of our cells dies.
Mitosis is a form of asexual reproduction.
Mitosis is a continual process that is divided four phases:

Question 6

step 1-prophase

Answer 6

“Prepare to split”
In animal cells, centrosomes appear (centrioles + spindle fibers)
In plant cells, only spindle appear
The nuclear membrane disappears

Question 7

step 2-metaphase

Answer 7

Chromosomes “Meet in the middle”
The chromosomes move to the center of the diving cell and line up on the cell’s equator

Question 8

step 3-anaphase

Answer 8

Chromatids “Apart”
The chromatids separate at the centromere and move toward opposite poles.
Once separated, the chromatids are considered chromosomes.

Question 9

step 4-telophase

Answer 9

“The END”
The spindle fibers disappear.
A nuclear membrane surrounds each set of chromosomes.

Question 10

cytokinesis

Answer 10

The dividing of the cytoplasm
In animal cells, the cytoplasm “pinches” and forms a cleavage furrow
In plant cells, a cell plate forms and later forms a cell wall.