1.2.2 Mitosis And The Cell Cycle Flashcards
1
Q
Mitosis
A
Production of body cells
2
Q
Mieosis
A
Production of sex cells
3
Q
Reasons for mitosis (4p)
A
Growth of organism
Repair of tissues
Replacement of worn out cells
Asexual reproduction
4
Q
Where does mitosis occur in plants?
A
In meristems (eg. root tip or shoot tip)
5
Q
How many stages in cell cycle?
A
3
6
Q
Longest stage in the cell cycle
A
Stage 1
7
Q
Stage 1
A
- The cell grows bigger, increase in mass and carry out normal cell activity
- DNA is replicated to form 2 copies of each chromosome ready for cell division
- Number of organelles increase
8
Q
Stage 2 (nucleus divides)
A
- one set of chromosomes is pulled to each end of the dividing cell and the nucleus divides
9
Q
Stage 3 (cell divides in two)
A
- The cytoplasm and cell membrane also decide to form two genetically identical daughter cells
10
Q
What does mitosis produce?
A
-Two genetically identical faughter cells
- clone
