TOPIC:TOPIC:

MY MY GOAL:GOAL:

GETGETONONTASK…TASK…UghhhhUghhhhNOWNOW

Tues Tues 01.29.1301.29.13

I will differentiate between asex. & sex. Repro. & begin MITosis

MT 15, MT 15, Reproduction of Reproduction of LifeLife

OPEN ISNOPEN ISN Page 136-137Page 136-137

Look On Concept Map on ISN Look On Concept Map on ISN page 137page 137

1. PURPOSE of MITosis = growth & repair of SOMATIC cells every cell in body EXCEPT gamete cells!

2. PURPOSE of MEIosis = produce gametes/sex cells

Xsome # Xsome # identical to identical to

parentparent

These 4 gametecells would be sperm for guysperm for guy,eggs for a girleggs for a girl

Xsome ½ the Xsome ½ the original as original as parent cellparent cell

ASEXUALASEXUAL1. Binary Fission2. Budding3. Fragmentation4. Regeneration

NotesNotesCopy on to TOP of Copy on to TOP of

ISN Page 136ISN Page 136

SEXUALSEXUAL1. Gametes

a) Spermb) Egg

2. Zygote

ASEXUAL REPRODUCTION!ASEXUAL REPRODUCTION!

BiNary Fission in Bacteria

Binary Fission In Paramecium

http://www.youtube.com/watch?v=_FBBnNhN_NM&feature=related&safety_mode=true&persist_safety_mode=1&safe=active

http://www.youtube.com/watch?v=vnlkvquWXS8&feature=related&safety_mode=true&persist_safety_mode=1&safe=active

Up to 3 times/daycan divide every 20 minutes single cell can produce a colony of 107 to 108 bacteria in about 12 hours (100 mill)

ASEXUAL REPRODUCTION!ASEXUAL REPRODUCTION!

Budding in Yeast

Budding in Hydra

http://www.youtube.com/watch?v=489CSop00sY&safety_mode=true&persist_safety_mode=1&safe=active

http://www.youtube.com/watch?v=iOvrq6ssy2Y&feature=related&safety_mode=true&persist_safety_mode=1&safe=active

ASEXUAL REPRODUCTION!ASEXUAL REPRODUCTION!

Fragmentation in Planaria

• Fragmentation is the unintentional cutting up of the body of an organism which each grows into different organism. (planaria, starfish)

• Regeneration is the growing back of a lost part of the body of an organism. It is usually used as a method of defense. (lizard)

Regeneration in Starfish

ASEXUAL REPRODUCTION ASEXUAL REPRODUCTION IN IN PLANTS!PLANTS!

SEXUAL REPRODUCTION!SEXUAL REPRODUCTION!

Joining… Fusion of GAMETES Fertilization

+ =

SPERM + EGG = ZYGOTE

SEXUAL REPRODUCTION SEXUAL REPRODUCTION IN IN PLANTS!PLANTS!

Asexual Sexual1.DRAW

2.# of cells at start =

3.# of cells at end =

4.Use of gametes?

5.Genetic variety in daughter cells?

11 22

22 1 (zygote) 1 (zygote)

NoNo YesYes

No No YesYes

+ =

COMPLETE COMPLETE ½ sheet Formative½ sheet Formative ATTACH TO ISN p.136ATTACH TO ISN p.136

This is NOT comparing Mitosis & Meiosis….

RECALL THIS..?ANIMAL RECALL THIS..?ANIMAL DIVISIONDIVISION

INTERPHASE

PROPHASE

METAPHASE

ANAPHASE

TELOPHASE

Animal cells separate by

pinching membrane in

INTERPHASE

PROPHASE

METAPHASE

ANAPHASE

TELOPHASE

Plants cells are

separ-ated by

a cell plate

Recall this..?PLANT Recall this..?PLANT MITOSISMITOSIS

YOUR JOB TODAY YOUR JOB TODAY COMPLETE ISN PAGE 139COMPLETE ISN PAGE 139

Flow Chart, MitosisFlow Chart, Mitosis

1.1.Complete ISN page 139 Complete ISN page 139 On MITosisOn MITosis2.2.READ to find where to READ to find where to turn in textbook for helpturn in textbook for help3.3.Briefly describe what is Briefly describe what is happening OVERALL in each happening OVERALL in each phase.phase.

Movin’ on…Movin’ on…Clip comparing DRAWN pics

vs the REAL DEAL

http://www.youtube.com/watch?v=K6ZRlJsHu4o&safety_mode=true&persist_safety_mode=1&safe=active

SHOW ME THAT YOU LEARNED SOMETHING TODAY

Your “Ticket To Exit” Your “Ticket To Exit” on the 1/4 sheet of blue paper you picked up at the

beginning of the period…answer this question:

What is the What is the basic

difference between MITOSIS & CYTOKINESIS!

HO

MEW

OR

KH

OM

EW

OR

K

Be the change you wish to see in the world

• Accept our connectedness to

events.• It is not unknown forces

that cause our problems.

• We are the cause and

the cure.• We create our own

reality and we can change it.