The Cell Cycle

Question 1

The Cell Cycle depicts the life of a cell

Question 2

Most of the cells life in spent in _________ where normal metabolic activities are taking place

Answer 2

Interphase

Question 3

Interphase consists of 3 stages

Answer 3

1) G1
2) S
3) G2

Question 4

Cell division consists of

Answer 4

1) Mitosis
2) Cytokinesis

Question 5

Mitosis

Answer 5

Division of the nucleus

Question 6

Cytokinesis

Answer 6

Division of cytoplasm and remaining organs

Question 7

G1

Answer 7

The cell grows and produces more organelles

Question 8

S

Answer 8

All chromosomes are copied (2 sets at the end of this stage)

Question 9

G2

Answer 9

Cell checks for mutations

Question 10

Chromosomes (S STAGE)

Answer 10

-Found in the nucleus
-Humans have 23 pairs (46 total) in the nucleus of every body cell
-Made of DNA wrapped around a protein called histone

Question 11

Chromatin

Answer 11

-During interphase chromosomes exist in a less rigid form called chromatin
-Chromatin condenses into chromosomes as the cell prepares to divide (happens during the end of G2)

Question 12

MITOSIS STAGES

Answer 12

(PMAT)
Interphase
Prophase
Metaphase
Anaphase
Telophase

Question 13

Interphase

Answer 13

-Nuclear membrane is completely intact
-Genetic material is chromatin
-Consists of G1, S, and G2 stages
-Normal metabolic activities take place

Question 14

Prophase

Answer 14

-The nuclear membrane breaks down
-Chromatin condenses into chromosomes
-Centrioles being migrating toward opposite poles and spindle fibers lengthen

Question 15

Metaphase

Answer 15

-Chromes line up at the middle/equator of the cell
-Centrioles are now located at the poles/ opposite sides of the cell
-Spindle fibers attach to the centromere of chromosomes

Question 16

Anaphase

Answer 16

-Sister chromatids separate and move toward opposite poles. Once separated they are considered chromosomes
-Cells starts to elongated

Question 17

Telophase

Answer 17

• Cell membrane pinches inward
  -Nuclear membrane reforms
  -Chromosomes revert back into chromatin by the end of telophase

Question 18

Cytokinesis -Animals

Answer 18

Cytokinesis is the cell division of the rest of the cell continents and cytoplasm. The cell membrane continues to pinch inward until 2 separate daughter cells result

Question 19

Cytokinesis -Plants

Answer 19

Cytokinesis is similar in plant cells with the exception of a cell plate (made of cellulose) forming a barrier between the 2 daughter cells resulting in their separation