cel division Flashcards
what is a diploid cell?
a diploid cells is a cell that contains 2 matching sets of chromosomes.
how many chromosomes does an african lion have?
38
how many chromosomes does a red kangaroo have?
40
how many chromosomes does an oak tree have ?
24
how many chromosomes does a cabbage plant have?
18
how many chromosomes does a human have?
46
how many christie’s does a fruit fly have?
8
what is the first stage of cell division?
each cells has thread like strands called chromosomes in its nucleas. a human cell has 46
what is the seconds stage of cell division?
chromosomes shorten and condense. as they shorten they can now be seen S pairs of chromotaids nuclear membrane breaks down
what is the third stage of cell division?
teh chromoyaids line up at the equator of the cell. ripe like structures called spindle-fibres attach
what is the fourth stage of cell division?
the spindle-fibres contract and pull apart the chromotaids
what is the fifth stage of cell divisuon?
the cell begins to divide and new nuclear membrane forms
what is the last stage of cell division?
the cupolas of the cell divides to provide two new daughter cells. they are genetically identical to the parent cell
why is cell division so important?
cell division ensure that each daughter cell receives all of the genetic information needed to carry out its function
what is cancer?
cancer is a condition in which cells in a part of the human body divide in an uncontrolled way
how does cancer spread to different parts of the body?
the cancer cells can start in a different party of the body before spreading to other areas. it can spread if a cell breaks off from a tumor and travels in the. bloodstream to another area
what is cell division?
the bodies of multicellular organisms made up of many cells. a single cell can produce two identical cells during cell division. cell division is essential for growth and repair of damaged cells
