169 Mitosis Notes
2/9/15
Starter: copy and answer the following question
What process produces new cells?
Mitosis Notes 170
2/9/15
Practice/ application:
Glue notes here when done
Connection/ Exit:
Thinking about the starter, were you correct?
How is your answer different or the same?

1. Starter
2.
3.
Practice
Exit

1/23 Characteristics of Living things 149-150
1/26 Levels of Organization 151-152
1/27 Unicellular Microscopy
1/28 Is it living?
1/29 Cell Theory Notes
1/30 Cell Notes
153-154
155-156
157-158
159-160
2/2 Plant/Animal Cell Comparison 161-162
2/3-4 Organelle Trail Research and Poster 163-164
2/5 Cell State 165-166
2/6 Cell Comparison Booklet 167-168
2/9 Mitosis Notes 169-170

169 Mitosis Notes
2/9/15
Starter: copy and answer the following question
What process produces new cells?
Mitosis Notes 170
2/9/15
Practice/ application:
Glue notes here when done
Connection/ Exit:
Thinking about the starter, were you correct?
How is your answer different or the same?

How do little elephants grow up to be BIG elephants?


the process in which the nucleus divides to form two new nuclei.

Skin cancer - the abnormal growth of skin cells - most often develops on skin exposed to the sun.
Cell that reproduce by asexual reproduction reproduce constantly.

There are 6 stages to Mitosis:
• Interphase
• Prophase
• Metaphase
• Anaphase
• Telophase & Cytokinesis

•
•
Chromosomes are copied (# doubles)
Chromosomes appear as threadlike coils
( chromatin) at the start, but later change to sister chromatids at end of this phase
Nucleus
CELL
MEMBRANE
Cytoplasm

Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

•
•
•
Mitosis begins (cell begins to divide)
Centrioles (or poles) appear and begin to move to opposite end of the cell.
Spindle fibers form between the poles.
Centrioles
Sister chromatids
Spindle fibers

Animal Cell
Spindle fibers
Plant Cell
Centrioles
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

•
Chromatids (or pairs of chromosomes) attach to the spindle fibers.
Centrioles
Spindle fibers

Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

•
Chromatids ( or pairs of chromosomes) separate and begin to move to opposite ends of the cell.
Centrioles
Spindle fibers

Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

•
•
•
Two new nuclei form.
Chromosomes appear as chromatin (threads rather than rods) .
Mitosis ends.
Nuclei Nuclei
Chromatin

Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

•
Cell membrane moves inward to create two daughter cells – each with its own nucleus with identical chromosomes.

Animal Mitosis -- Review
Interphase Prophase
Metaphase
Telophase
Anaphase
Interphase

Plant Mitosis -- Review
Interphase Prophase
Metaphase
Telophase
Anaphase
Interphase

http://www.cellsalive.com/mitosis.htm

- Cell Division
26
26

27

169 Mitosis Notes
2/9/15
Starter: copy and answer the following question
What process produces new cells?
Mitosis Notes 170
2/9/15
Practice/ application:
Glue notes here when done
Connection/ Exit:
Thinking about the starter, were you correct?
How is your answer different or the same?