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Cell Reproduction (2nd Version)

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Page 1: Cell Reproduction (2nd Version)
Page 2: Cell Reproduction (2nd Version)

The process by which one organism or species produces others of its same kind.

Page 3: Cell Reproduction (2nd Version)

There are 2 types of reproduction:

Asexual : A new

organism is produced from 1 organism.

Sexual : A new organism is produced from 2 organisms.

Page 4: Cell Reproduction (2nd Version)

New organisms are produced from one parent

The new organism contains genetic information identical to or uniform with the parent.

There is less genetic

diversity (as compared to sexual reproduction)

Page 5: Cell Reproduction (2nd Version)
Page 6: Cell Reproduction (2nd Version)

Propagation & Sprouting:

Vegetation that grows a plant from a cutting, graft or seed.

Ex: Strawberries growing from runners

Ex: A potato that sprouts outwardly and grows into a new potato

TEXTBOOK-Figures 7.A and 7.B on page 359

Page 7: Cell Reproduction (2nd Version)

Offspring grows off the side of the parent and eventually breaks away when fully formed.

Ex: Hydra, a simple freshwater organism

TEXTBOOK, pg. 360

Page 8: Cell Reproduction (2nd Version)

Organisms that don’t have a nucleus copy their genetic information and divide into 2 identical organisms.

EX: Bacteria (prokaryotic) has no true nucleus

Page 9: Cell Reproduction (2nd Version)

Process in which cell division creates more spores.

Spores are reproductive bodies, that are produced by mushrooms, plants, bacteria, and Protozoa and that are widely dispersed.

Ex: Fungi (mushrooms) and the spores on the underside of fern plants.

Page 10: Cell Reproduction (2nd Version)

Process that uses cell division to re-grow damaged or lost body parts.

Ex: Sponges, sea stars and planarians

Page 11: Cell Reproduction (2nd Version)

Cells go through a process called mitosis to divide.

The trillions of cells in the body carry the same genetic information.

Specific cells use certain pieces of the information to become particular types of cells.

Ex: liver cells that work together to become the liver organ vs. skins cells that work together to become skin.

Cell division allows for growth and healing of an organism

Ex: when your skin is cut/wounded ,cell division causes re-growth of those skin cells. Also, individuals experiencing puberty are going through rapid growth caused by cell division.

Page 12: Cell Reproduction (2nd Version)

WHAT IS IT?

Divisions of the nucleus (cell division)

Produces two nuclei that are identical to each other and the original nucleus

Every cell in the body except sex chromosomes has 23 pairs of chromosomes for a total of 46 chromosomes in the nucleus.

Page 13: Cell Reproduction (2nd Version)

THE CELL CYCLE: PHASES OF MITOSIS ACTIVITY DIRECTIONS: Use pg. 356-

357 in your textbook and the handout (Pg. 25) to label the steps of mitosis. Next to each phase, briefly explain what happens (at least 2 complete sentences for each phase.)

 PHASES Interphase: Most eukaryotic

( cells with a nucleus) cells spend most of their time here growing and developing. The cell’s information is copied here as it prepares to divide.

Prophase Metaphase Anaphase Telophase


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