Mitosis

Question 1

What is interphase

Answer 1

When the cell prepares to divide,

Question 2

What’s happens during interphase

Answer 2

The cell grows and increases the amount of sub cellular structures

Question 3

What are sub cellular structures

Answer 3

Mitochondria, ribosomes.

Question 4

What happens to a cells DNA in interphase

Answer 4

It duplicates, so there is one copy for each new cell.

Question 5

What shape are DNA chromosomes after interphase

Answer 5

X-shaped

Question 6

How many stages of mitosis are there

Answer 6

4

Question 7

What stage follows interphase

Answer 7

Mitosis

Question 8

What are the 4 stages of mitosis

Answer 8

1. Prophase
   2.Metaphase
   3.Anaphase
   4.Telophase
   (Pinch My Arse Tunnel)

Question 9

What happens during prophase

Answer 9

1. The chromosomes condense
2. The membrane around nucleus breaks down
3. Chromosomes lie free in cytoplasm

Question 10

What happens during metaphase

Answer 10

Chromosomes line up at centre of cell

Question 11

What happens during anaphase

Answer 11

1. Spindle fibres pull the chromosomes apart
2. Chromatids are pulled to opposite ends of the cell

Question 12

What happens during telophase

Answer 12

1. Membranes form around each set of chromosomes
2. These become the nuclei of the two new cells

Question 13

What is cytokinesis

Answer 13

It is the last stage of telophase, when cytoplasm and call membrane divide to form two separate cells

Question 14

What does the cell cycle do

Answer 14

Makes new cells for growth and repair

Question 15

What do chromosomes contain

Answer 15

Genetic information in the form of coiled up DNA molecules

Question 16

How many copies of each chromosomes do each body cell have

Answer 16

2

Question 17

What is a diploid cell

Answer 17

One chromosome from the organisms ‘mother’ and one from its ‘father’

Question 18

What is the stage called when the cell divides

Answer 18

Mitosis

Question 19

What is it called when organisms use mitosis to reproduce

Answer 19

Asexual reproduction
(E.g. strawberry plants form runners by mitosis)

Question 20

What is produced at the end of mitosis

Answer 20

Two new daughter cells which have identical sets of chromosomes

Question 21

Are daughter cells genetically identical to the parent cell

Answer 21

Yes they’re genetically identical diploid cells

Question 22

What is the formula to work out the number of cells there will be after multiple divisions of a cell in mitosis

Answer 22

Number of cells= 2n
Where ‘n’ is the number of divisions by mitosis
(E.g. 2power5 = 2x2x2x2x2=32)