2.1 - Producing new cells Flashcards
Diploid is
The normal number of chromosomes in a cell. In humans this is 23 pairs.
Mitosis is
Normal cell division
Mitosis is for
growth, repair of damaged cells, and maintaining the diploid chromosome complement
Chromatids are
Strands of duplicated chromosome
The equator
Is the middle of the cell where the chromosomes (pairs of chromatids) line up
Spindle fibres are
Where chromosomes attach to; they pull the chromatids apart to the poles
Stem cells are
Unspecialised cells which can divide in order to self-renew. They have the potential to become different types of cell.
Stem cells are involved in
Growth and repair
Specialisation of cells leads to
A variety of tissues and organs
Organs work together to form systems, and the hierarchy is:
cells 🡪 tissues 🡪 organs 🡪systems