Chapter 10.5: M Phase: Chromosome Segregation and the Division of the Cytoplasmic Contents

Question 1

Define cell plate

Answer 1

the structure that forms at the equator of the spindle during early telophase in the dividing cells of plants and a few green algae

Question 2

Define metaphase (mitosis)

Answer 2

the stage of mitosis or meiosis during which microtubules become organized into a spindle and the chromosomes come to lie in the spindle’s equatorial plane

Question 3

Define spindle apparatus

Answer 3

the assembly that carries out the separation of chromosomes during cell division; composed of microtubules (spindle fibers) and assembled during prophase at the equator of the dividing cell

Question 4

What is the constriction that forms during cytokinesis in animal cells that is responsible for dividing the cell into two daughter cells?

Answer 4

cleavage furrow

Question 5

What is the division of the cytoplasm of a cell after nuclear division?

Answer 5

cytokinesis

Question 6

Define anaphase (mitosis)

Answer 6

in mitosis and meiosis II, the stage initiated by the separation of sister chromatids, during which the daughter chromosomes move to opposite poles of the cell

Question 7

Define cytokinesis (mitosis)

Answer 7

division of the cytoplasm of a cell after nuclear division

Question 8

Define prophase (mitosis)

Answer 8

the phase of cell division that begins when the condensed chromosomes become visible and ends when the nuclear envelope breaks down. The assembly of the spindle takes place during prophase

Question 9

Define aster

Answer 9

in animal cell mitosis, a radial array of microtubules extending from the centrioles toward the plasma membrane, possibly serving to brace the centrioles for retraction of the spindle

Question 10

Define prometaphase (mitosis)

Answer 10

the transitional phase between prophase and metaphase during which the spindle attaches to the kinetochores of sister chromatids

Question 11

What is the phase of cell division that begins when the condensed chromosomes become visible and ends when the nuclear envelope breaks down. The assembly of the spindle takes place during prophase?

Answer 11

propjase

Question 12

What is in animal cell mitosis, a radial array of microtubules extending from the centrioles toward the plasma membrane, possibly serving to brace the centrioles for retraction of the spindle?

Answer 12

aster

Question 13

What is the transitional phase between prophase and metaphase during which the spindle attaches to the kinetochores of sister chromatids?

Answer 13

prometaphase

Question 14

What is the stage of mitosis or meiosis during which microtubules become organized into a spindle and the chromosomes come to lie in the spindle’s equatorial plane?

Answer 14

metaphase

Question 15

Define telophase (mitosis)

Answer 15

the phase of cell division during which the spindle breaks down, the nuclear envelope of each daughter cell forms, and the chromosomes uncoil and become diffuse

Question 16

Define cleavage furrow

Answer 16

the constriction that forms during cytokinesis in animal cells that is responsible for dividing the cell into two daughter cells

Question 17

What is the assembly that carries out the separation of chromosomes during cell division; composed of microtubules (spindle fibers) and assembled during prophase at the equator of the dividing cell?

Answer 17

spindle apparatus

Question 18

What is the phase of cell division during which the spindle breaks down, the nuclear envelope of each daughter cell forms, and the chromosomes uncoil and become diffuse?

Answer 18

telophase

Question 19

What is in mitosis and meiosis II, the stage initiated by the separation of sister chromatids, during which the daughter chromosomes move to opposite poles of the cell?

Answer 19

anaphase

Question 20

What is the structure that forms at the equator of the spindle during early telophase in the dividing cells of plants and a few green algae?

Answer 20

cell plate