Unit 6: Cell Cycle and Mitosis

Question 1

The bigger a cell is, the __________ efficient it becomes

Answer 1

Less

Question 2

The two major phases of a cell’s life are __________ and __________

Answer 2

Interphase; cell division (AKA M phase)

Question 3

The three stages of interphase are __________, __________, and __________

Answer 3

G1, S, and G2

Question 4

G1 stage of interphase

Answer 4

The cell GROWS and makes more organelles

Question 5

S stage of interphase

Answer 5

A second copy of the cell’s DNA is SYNTHESIZED

Question 6

G2 stage of interphase

Answer 6

The cell GETS READY to divide

Question 7

G0

Answer 7

Stage in the cell cycle where cells are not actively dividing or preparing to divide

Question 8

The two stages of cell division (M phase) are __________ and __________

Answer 8

Mitosis; cytokinesis

Question 9

Mitosis

Answer 9

Division of the nucleus to create two identical daughter nuclei

Question 10

Cytokinesis

Answer 10

Splitting of the membrane and cytoplasm
to form two identical cells

Question 11

Chromosomes

Answer 11

Form when chromatin is supercoiled

Question 12

Before S phase, there are ___ total chromosomes in human cells

Answer 12

46

Question 13

After S phase, each chromosome consists
of two identical DNA molecules called sister __________

Answer 13

Chromatids

Question 14

Sister chromatids are joined together at a region called the __________

Answer 14

Centromere

Question 15

Phase one of mitosis (think PMAT)

Answer 15

Prophase

Question 16

Phase two of mitosis (think PMAT)

Answer 16

Metaphase

Question 17

Phase three of mitosis (think PMAT)

Answer 17

Anaphase

Question 18

Phase four of mitosis (think PMAT)

Answer 18

Telophase

Question 19

In prophase, jumbled chromatin condenses into visible __________

Answer 19

Chromosomes

Question 20

In prophase, the __________ and __________ disappear

Answer 20

Nucleolus; nuclear membrane

Question 21

In prophase, centrioles move towards the poles of cell and start to form __________

Answer 21

Spindle fibers

Question 22

In metaphase, __________ align at the equator of the cell

Answer 22

Chromosomes

Question 23

In metaphase, spindle fibers attach to the __________ of each chromosome

Answer 23

Centromere

Question 24

In anaphase, spindle fibers pull __________ apart

Answer 24

Centromeres

Question 25

In anaphase, sister __________ are pulled towards poles of cell

Answer 25

Chromatids

Question 26

In telophase, __________ reach the poles

Answer 26

Chromatids

Question 27

In telophase, __________ reform around new nuclei

Answer 27

Nuclear membranes

Question 28

In cytokinesis, the cell is pinched in two, separating __________, __________, and __________

Answer 28

Membrane; cytoplasm; nuclei