Mitosis

Question 1

What is the purpose of MITOSIS?

Answer 1

To create A DUPLICATE of a cell in order to:

a. ) help the cell function efficiently
b. ) grow an organism
c. ) heal an organism

Question 2

MITOSIS is a form of ______ reproduction

Answer 2

MITOSIS is a form of ASEXUAL reproduction

Question 3

What cells undergo MITOSIS?

Answer 3

Some SOMATIC CELLS (body cells)

Question 4

What is the ORDER of MITOSIS?

Answer 4

Interphase, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis
(I P M A T C)
(Intern! Pass Me A Taco, Chief!)

Question 5

What are the THREE stages of Interphase?

Answer 5

G1 (cellular function, organelle duplication)
S (DNA replication)
G2 (double-checks, repairs errors in DNA)

Question 6

What occurs during Prophase?

Answer 6

• nuclear membrane dissolves
• chromatin -> (sister) chromatids
• spindle fibers form

Question 7

Which occurs first: Metaphase or Anaphase?

Answer 7

Metaphase (chromatids align on central axis)

Question 8

What occurs during Telophase?

Answer 8

• nuclear membrane reforms
• (daughter) chromatids -> chromatin
• spindle fibers disappear
• cell membrane begins to pinch in the middle

Question 9

What divides the cell during Cytokinesis?

Answer 9

Cell membrane and/or cell wall (plant cells only)

Question 10

What cells do NOT undergo MITOSIS?

Answer 10

• muscle cells
• nerve cells
• spermatocytes and oocytes (reproductive cells)
• dead cells

Question 11

What are the purpose of Telomeres?

Answer 11

They protect DNA and become increasingly damaged during DNA duplication, limiting how many times cells duplicate.

Question 12

Need more review?

Answer 12

textbook pg. 151 #3, 4, 5