Science Matters: Mitosis and Meosis

Warm-up

12/04/15

Vocabulary

Define vocabulary terms

(Cornell Note Style)

-Asexual Reproduction

-Chromosome

-Clone

-Genes

-Heredity

-Mitosis

*A summary must be included within your Cornell Note in order to receive full credit*

What is Mitosis?

Is the second step of a cell cycle. Mitosis is a part of the cell cycle in which chromosomes in I a

cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus.

Mitosis starts with one cell and ends with two cells.

(YOU DO NOT NEED TO KNOW THE STEPS OF MITOSIS)

Cell Cycle:

I. Interphase

A. 90% of the cell life is spent in interphase

B. In Interphase the DNA is duplicated and the cell is preparing for division.

2. Mitosis

  A. Four phases of Mitosis (PMAT)

I. Prophase

II. Metaphase

III. Anaphase

IV. Telaphase

3. Cytokinesis

A. Cell Division

Steps of Mitosis

Cells Alive (Click Here)

Amoeba Sister explain Mitosis (click here)

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Classwork 12/04/15:

Students will draw, color, label and explain mitosis using a graphic organizer.

Exit Slip:

1. How do the traits of the parent and offspring compare to each other in asexual reproduction?
2. What are the benefits and limitations of single-celled organisms that undergo the process of asexual reproduction?3. Humans are constantly shedding dead skin cells. How do we replace them?
4. An old sequoia tree weighs any tons and has billions of cells. These trees start out as tiny seeds. How do these trees become so large?

Home Learning

Complete Mitosis and asexual reproduction aligned investigation. (see teacher for worksheet)
*Due: December 8,2015*

Warm-Up

12/08/15

Vocabulary

Define vocabulary terms (pg. 410)

Cornell note style

Chromosome
Genes
Heredity
Meiosis
Sex cell
Sexual Reproduction

*A summary must be included within your Cornell Note in order to receive full credit*

What is Meiosis?

Meiosis happens when it's time to reproduce an organism. The steps of meiosis are very simple. When you break it down it's just two PMATI's in a row. Scientists say Meiosis I and Meiosis II, but it's just two PMATIs. The interphase that happens between the two processes is very short and the DNA is not duplicated. Meiosis begins with one cell and ends with four cells.