Mitosis

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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

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Table of Contents

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 is

Mitosis

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

The process of asexual reproduction begins after a sperm fertilizes an egg.

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?

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