Section Four (Cell division & growth) Flashcards
What happens to the DNA during the first stage of cell cycle?
DNA replicates.
What happens to the size of the cell during the first stage of cell cycle?
Increases.
Along with proteins, which organelle increases in number during the first stage of cell cycle?
Mitochondria.
Where do chromosomes line up during the second stage of mitosis?
The centre of the cell.
What happens to the chromosomes after they line up in the centre?
They are pulled to each side of the cell.
What forms around the sets of chromosomes at the end of the second stage of mitosis?
Nuclear membrane.
What happens in the third stage?
Cell splits in two.
How many sets of chromosomes does a diploid cell have?
Two.
What kind of cell is formed in mitosis?
Diploid.
Mitosis produces what kind of cell?
Body cell.
What is a stem cell?
An unspecialised cell.
Where are adult stem cells found?
Bone marrow.
Which stem cells differentiate into any cell?
Embryonic.
What do stem cells repair?
Damaged tissue.
What do stem cells replace?
Damaged cells.
