Cell Division

Question 1

Cells grow in number, not _________.

Answer 1

Size

Question 2

Reasons for Cell Division:

Answer 2

Cell growth, repair and replace of damaged cell parts.

Question 3

DNA is organized into giant molecules called ____________.

Answer 3

Chromosomes

Question 4

________________ are made up of protein & a long, single, tightly-coiled DNA.

Answer 4

Chromosomes

Question 5

Molecule only visible when the cell divides:

Answer 5

Chromosomes

Question 6

When a cell is not dividing the chromosome and is less visible:

Answer 6

Chromatin

Question 7

__________ hold duplicated chromosomes together before they are separated in mitosis

Answer 7

Centromere

Question 8

Each half of the chromosome is called a ________

Answer 8

Sister chromatin

Question 9

Each sister chromatin contains the ____________ genetic information

Answer 9

Identical

Question 10

The division of a nucleus is called __________.

Answer 10

Mitosis

Question 11

The division of the cytoplasm is called __________.

Answer 11

Cytokinesis

Question 12

What are the four stages of mitosis?

Answer 12

1. ) Prophase
2. ) Metaphase
3. ) Anaphase
4. ) Telephase

Question 13

What is the longest phase of mitosis?

Answer 13

Prophase

Question 14

What is the shortest phase of mitosis?

Answer 14

Metaphase

Question 15

During what phase the Nucleolus and the nuclear membrane disappear?

Answer 15

Prophase

Question 16

What happens to the DNA during interphase?

Answer 16

It is copied or replicated

Question 17

What happens to the chromosomes during prophase?

Answer 17

Chromosomes are formed and visible

Question 18

What happens to the chromosomes during metaphase?

Answer 18

They line up in the center

Question 19

What happens to the chromosomes during anaphase?

Answer 19

They travel along the spindle fibers

Question 20

What happens to the chromosomes during telophase?

Answer 20

They become less tightly coiled & appear as chromatin

Question 21

What happens during each of the 3 stages of interphase? (G1, S, G2)

Answer 21

G1- cell is growing & preparing to replicate DNA.

S- DNA is copied or replicated.

G2- Cell prepares for nuclear division. (Mitosis)

Question 22

Cell Division Definition:

Answer 22

The process by which cells produce new cells.