Module 6: Cell Division

Question 1

process by which new cells for from existing ones, allowing for growth, development, and repair of tissues

Answer 1

cell division

Question 2

longest phase of the cell cycle

Answer 2

interphase

Question 3

process of nuclear division where replicated chromosomes are separated into two daugter nuclei

Answer 3

mitosis

Question 4

division of cytoplasm

Answer 4

cytokinesis

Question 5

significance of cell division:

Answer 5

growth & development, repair and regeneration, reproduction

Question 6

In plants, this division of cells occur in
special tissues called

Answer 6

meristems

Question 7

There are two phases of this division:

Answer 7

karyokinesis (or nuclear
division) followed by cytokinesis (or cytoplasmic division).

Question 8

enables the plant
to replace dead cells or to heal wounds.

Answer 8

mitosis

Question 9

what part of the onion was examined

Answer 9

root cap, the tip most portion of the root apical meristem

Question 10

A large spherical nucleus, with nuclear membrane intact, grain-like chromosomes, and one to two nucleoli. This is the stage of

Answer 10

interphase

Question 11

A large, spherical nucleus with a nucleolus and nuclear membrane intact and with
thickened, more distinctly ribbonlike chromosomes. The chromosomes may look like a dish of spaghetti.

Answer 11

prophase

Question 12

A cell in which the chromosomes appear as a loose knot in the center of the cell. The
nuclear membrane, if still present, is indistinct. The nucleolus may start to fade.

Answer 12

metaphase

Question 13

A cell in which the chromosomes are aligned in the equatorial plane of the cell.

Answer 13

metaphase

Question 14

A cell in which the chromatids are moving to opposite poles of the cell.

Answer 14

anaphase

Question 15

A cell in which the chromatids, though fairly distinct are close to the opposite poles of the cell. A cell plate may be forming at the middle of the cell.

Answer 15

telophase

Question 16

Look for two cells that appear to have finished dividing recently. These are the daughter cells and the stage seen is the stage of

Answer 16

cytokinesis

Question 17

In what material is the coded information of the cell stored?

Answer 17

DNA

Question 18

stage of the cell cycle is the nuclear material doubled

Answer 18

S phase in interphase

Question 19

Are the stages of mitosis occurring simultaneously on a meristem

Answer 19

No. Meristems are regions of active cell division in plants, where different cells are in different stages of the cell cycle, including mitosis. .