PLANT CELL DIVISION

Question 1

WHY DO CELLS NEED TO DIVIDE

Answer 1

1.Living things grow by producing more cells.
2.Repair of damaged tissue.
3.If cell gets too big, it cannot get enough nutrients into the cell and wastes out of the cell.

Question 2

Original Cell

Answer 2

Parent Cell

Question 3

2 new cells

Answer 3

Daughter cells
Each daughter cell is exactly like the parent cell – same kind and number of chromosomes as the original cell.

Question 4

INTERPHASE

Answer 4

• non dividing cells
  -longest phase
  G1 (1ST Gap Phase) – the time between the end of the previous ce l division and the beginning of DNA replication; the longest phase.

SPhase (Synthesis Phase) – involves the replication of DNA.

G2 (2nd Gap Phase) – increased protein synthesis occurs as the cell prepares to divide.

Question 4

MITOSIS

Answer 4

PROPHASE
METAPHASE
ANAPHASE
TELOPHASE

Question 5

MPHASE

Answer 5

Mitosis – the division of the cell nucleus resulting in two daughter nuclei, each with the same number of chromosomes as the parent nucleus.
Cytokinesis – the stage of cell division in which the cytoplasm divides to form two daughter cells.

Question 6

MEIOSIS

Answer 6

PMAT 1
PMAT II

Question 7

MITOSIS

Answer 7

Occurs in all organism
-Creates body (somatic) cells with 46 chromosomes
-Involves one cell division
-produces two diploid daughter cells
-daughter cells- identical

Question 8

Meiosis

Answer 8

-Occurs in plant, animal, and fungi
-creates sex cells
(sperm and egg cells)
-involves two successive cell divisions
- produces four haploid daughter cells
-daughter cells different
-creastes a human cell with 23 chromosomes