Cell Cycle and Mitosis Lab

Question 1

3 major events in cell cycle

Answer 1

interphase
mitosis
cytokinesis

Question 2

interphase (what it accomplishes)

Answer 2

carries out cell function and prepare for mitosis

Question 3

eukaryotic cell life – 2 main periods

which is longer

Answer 3

interphase – much longer

mitosis

Question 4

phases of interphase

Answer 4

G1

S-phase

G2

Question 5

interphase:

G1 (what it accomplishes)

Answer 5

cell carries out biosynthetic activities
cell growth (increases in size)

Question 6

interphase:

S-phase (what it accomplishes)

Answer 6

DNA is copied and chromosome synthesis occurs

chromosomes are unwound, thinned, and extended

single-chromatid chromosomes –> double-chromatid chromosomes

Question 7

interphase:

G2 (what it accomplishes)

Answer 7

centrosomes move to opposite sides of nucleus

Question 8

mitosis (4 phases)

Answer 8

prophase
pro metaphase (includes metaphase)
anaphase
telophase

Question 9

centrosomes (what do they do)

Answer 9

help organize mitotic spindle during mitosis

Question 10

prophase

Answer 10

chromosomes become condensed (easily visible)

mitotic spindle begins to form – consists of microtubules that grow and arch from one side of cell to other

Question 11

prometaphase

Answer 11

nuclear membrane breaks down

spindle fibers connect to kinetochores at centromere region of each chromosome

metaphase – when all kinetochores reach metaphase plate

Question 12

centromere (what is it)

Answer 12

point at which 2 chromatids of each chromosome are held together by adhesive protein complex