Mitosis

Question 0

Mitosis

Answer 0

Division of nucleaus of cell

Question 1

Cell division increases number of what type of cells

Answer 1

Somatic

Question 2

Cytokinesis

Answer 2

Division of cytoplasm

Question 3

Stages of interphase

Answer 3

G1 S G2

Question 4

G1

Answer 4

Organelles double in number

Accumulated materials needed for division

Question 5

S stage

Answer 5

DNA replication

S=synthesis

Question 6

G2

Answer 6

Synthesis of proteins needed for division

Question 7

Miotic stage

Answer 7

Follows interphase

Includes mitosis and cytokinesis

Question 8

What must be present in order for stages to progress otherwise apoptosis will occur

Answer 8

Protein Cyclin

Question 9

Control of cell cycle

Answer 9

G2 checkpoint
M checkpoint
G1checkpoint

Question 10

G2 check point

Answer 10

Stops cycle if DNA is damaged or not replicating

Question 11

M checkpoint

Answer 11

Stops if chromosomes are not aligned

Question 12

G1 checkpoint

Answer 12

Protein p53 stops cycle if DNA is damaged

Question 13

When does apoptosis occur

Answer 13

If DNA isn’t good

Question 14

What happens in apoptosis

Answer 14

Cell becomes spherical

Nucleaus breaks up and cell becomes fragmented which occurs bc of two enzymes called caspases

Question 15

What do the 2 caspases do in apoptosis

Answer 15

One set initiates the events that occur in apoptosis

One activates enzymes that digest cell

Question 16

Chromatin

Answer 16

Tangled mass of thread like DNA

Question 17

Chromosomes

Answer 17

Condensed or rodshaped DNA molecules during division

Question 18

Diploid

Answer 18

Chromosome number, chromosomes in pairs

Question 19

Haploid

Answer 19

Half the diploid number found in gannets

Question 20

What is each duplicated chromosome composed of

Answer 20

2 sister chromatids held together by a centromere

Question 21

Prophase

Answer 21

Nuclear membrane disappears

Question 22

Metaphase

Answer 22

Chromosomes line up at equator associated with spindle fibers

Question 23

Anaphase

Answer 23

Centromeres divide, sister chromatids migrate to opposite poles and cytokinins begins

Question 24

Telophase

Answer 24

Nuclear membrane form, spindle disappears, cytokinesis occurs

Question 25

Mitosis in plant cells occurs where

Answer 25

Meristematic tissues

Question 26

Plants do not have

Answer 26

Centrioles or asters

Question 27

Cytokinesis in plant cells

Answer 27

Flattens small disks apear between daughter cells Golgi apparatus produces vesicles to move disk Realesed molecules to build new cell wall Vesicle membranes complete plasma membranes

Question 28

Cytokinesis in animal cells

Answer 28

Cleavage furrow forms between daughter nuclei Contractile ring contracts deepening furrow and continues until separation is complete

Question 29

Cell division of prokaryotes (bacteria)

Answer 29

Binary fission - Prokaryotes have single chromosome - Chromosomal replication occurs b4 division - cell begins to elongate to twice its length - cell membrane grows inward until division is complete