Cell Division/Mitosis

Question 0

what is a new cell called

Answer 0

daughter cell

genetically identical to the parent cell

Question 1

To increase the total number of cells in an organism what do cells do

Answer 1

cell division

Question 2

what must the cell have in order for it to work properly

Answer 2

correct amount of DNA and it’s nucleus

Question 3

what is mitosis

Answer 3

makes sure that each cell gets the correct amount of DNA

Question 4

stage one interstage

Answer 4

• “resting stage”, the time between cell division when it’s growing and doing its regular job
• cells DNA which exists as chromatin duplicates so it now has twice the normal amount of DNA
• centrioles duplicate in animal cells

Question 5

stage two prophase

Answer 5

• chromatin condenses and forms rodlike chromosomes
• chromosome is double-stranded, consisting of two identical sister chromatids joined at the centromere
• centrioles move to opposite sides and begin to cast spindle fibers that will guide the chromosomes
• nuclear membrane disappears and nucleolus

Question 6

stage 3 metaphase

Answer 6

• The centromere of each chromosome attaches to spindle fiber
• spindle fibers guide the chromosomes to the equator

Question 7

stage four anaphase

Answer 7

• centromere of each chromosome splits and the chromosomes separate
• chromosomes are now single-stranded chromosomes
• each chromosome is pulled to the opposite end of the cell

Question 8

stage five telophase

Answer 8

• chromosomes reach opposite pole
• chromosomes unwind and become chromatin again
• nuclear membrane forms rounded pile of chromatin
• nucleolus forms in each new nucleus
• spindle fibres disappear

Question 9

stage six cytokinesis

Answer 9

• division of the cytoplasm
• so membrane moves inward until the cell is pinched in two
• there are now two genetically identical cells

Question 10

plants vs animal cell division

Answer 10

• plants don’t have centrioles but they still have spindle fibres
• plants can’t pinch in two instead a new cell wall forms between the two new nucleus