CELLS Cells Human body 100 trillion cells in

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CELLS

CELLS

Cells � Human body: 100 trillion cells (in German: 100 Billionen) � � �

Cells � Human body: 100 trillion cells (in German: 100 Billionen) � � � Size: 0, 004 mm (~4 -5 µm) Put in line: 100 times around earth Every second: 50 million cell die

Cells � Every cell has its own task (hair, liver, heart, muscle, eye. .

Cells � Every cell has its own task (hair, liver, heart, muscle, eye. . . ) � Life of a cell: � lip: 2 weeks � liver: 8 month � Biggest human cell: female egg cell (0, 12 mm)

Structure of animal cell https: //www. youtube. com/watch? v=2 s 87 Sy. Rh 3

Structure of animal cell https: //www. youtube. com/watch? v=2 s 87 Sy. Rh 3 t 0

Clawed frog (Krallenfrosch)

Clawed frog (Krallenfrosch)

Experiment (by J. Gurdon, 1961)

Experiment (by J. Gurdon, 1961)

What can you say regarding the findings of J. Gurdon? Share with class.

What can you say regarding the findings of J. Gurdon? Share with class.

Genetic information � � Genetic information (DNA) is located in the nucleus of a

Genetic information � � Genetic information (DNA) is located in the nucleus of a cell Every cell contains the whole genetic information of a person!!

Genetic information � � Human 46 chromosomes (the aquatic rat has 92, a dog

Genetic information � � Human 46 chromosomes (the aquatic rat has 92, a dog 78) 23 pairs of homologue chromosomes 22 pairs of autosomes, 1 pair of sex chromosomes Female: 46, xx, male: 46, xy

Karyogram � � DNA, in form of chromosomes http: //www. youtube. com/watch? v=zsaf. Z

Karyogram � � DNA, in form of chromosomes http: //www. youtube. com/watch? v=zsaf. Z 17 p. KC 4

WALT know what cell cycle is Homework : Explain what is apoptosis?

WALT know what cell cycle is Homework : Explain what is apoptosis?

Mitosis - Growth?

Mitosis - Growth?

DNA extraction

DNA extraction

DNA extraction from saliva Materials & Set Up � 1/4 of a test tube

DNA extraction from saliva Materials & Set Up � 1/4 of a test tube full of your saliva � several drops of dish soap � a pinch of table salt (1/16 of a teaspoon) � some washing powder � ice-cold liquor