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Mitosis
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The Mandella Environment

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The Mandella Environment Edit

Week In Review/Living Environment II Edit

These are the plans that will be carried out during the week of December 2nd - December 6th.
Edit

 Monday: B Day

Aim: How does one cell become millions of cells?

Do Now: Define these scientific terms: body cells, cancer, meiosis, mitosis, ovary, polar body, puberty, sex cell, sister chromatids, haploid, diploid and testes.

Procedure: Where did the new cells in your body come from? You originally came from one cell. The process of two identical cells coming from one cell is called mitosis. You grow and while growing you reproduce cells. You need to repair. All body cells are formed by mitosis. Ex. Skin, bonem blood, stomach, etc. Use text to look at cells that reproduce and the different rates in which they reproduce. Some cells do not repair themselves, for ex. Muscle, spinal cord tissue and brain. You go through mitosis from before birth until you die.  Distribute copies of an animal cell and review parts and discuss the parts that will be in use during mitosis.

Homework # 8: Read and answer questions on page 313-314 Part A and B all questions

Tuesday:  A Day

Aim: How does mitosis work?

Do Now: Explain how a photo copier works.

Procedure: Students will relate the process of mitosis to a photo copier. You start with one cell and the end result is two identical cells (daughter cells). Mitosis(cell division) can take several hours. There are phases of mitosis. They are called Interphase, Prophase, Metaphase, Anaphase, Telophase. Explain the phases using the overhead transparency. Have the students repeat the explanation of the mitosis steps using a worksheet.

Homework # 9: Complete the handout by labeling the steps in the correct order on the handout.

Wednesday: B Day

Aim: What are the stages of mitosis?

Do Now: Lab #11: Mitosis Stages

Procedure: Students will complete the drawings and stages in their UPCO Books on pages 315-318. Students will choose a cooperative job for this activity prior to beginning. Then students will complete a lab project for an assigned phase in mitosis. They will have to describe the phase on an index card. They will also draw and label their phase on a transparency.

Homework #10: Complete the review activity on page 325 of the UPCO Book.

Thursday: A Day

Aim: What are the stages of mitosis?

Do Now: Continue with Lab #11. Take all materials to your desk and finish activity. Prepare to describe your phase to the class orally.

Procedure: Students will give their oral presentations of the steps of mitosis to their class. Then we will watch the mitosis video clips for the remainder of the class.

Homework #11: Complete Part J on page 318 and 319 in UPCO Book

Friday: B Day

Aim: What is meiosis and how is it different from mitosis?

Do Now: What are the human sex cells? SPERM and EGG

Procedure: Ask students what would happen if we got 46 chromosomes from each parent. Chromosome number would double each generation. Discuss that meiosis is the reproduction of the sex cell. In meiosis the cell divides twice. This reproduction forms the sex cell. Using a transparency demonstrate the steps to the students and ask them to explain what is occurring during each step. Have students complete their steps on a handout.

No Homework! Have a great weekend!

Monday: B Day

Aim:

Do Now:

Procedure: Changes often occur in the growth of cells. The rate of mitosis can speed up or slow down. The two effects caused by the change in the rate of mitosis are aging and cancer. AGING is the process of becoming older. Loss of hair, wrinkled skin, loss on calcium in bones are all signs of aging. See chart on page 476 detailing changes that occur within the human body with age.  Mitosis slows down with age.  CANCER: is a disease in which the body cells reproduce at an abnormally fast rate. Look at diagram on overhead showing changes in lung tissue. Why do some cells reproduce at abnormally fast rates? Chemicals, Radiation and Viruses. Chewing tobacco, asbestos, smog, paint thinner, UV rays, cigarettes, x-rays. Treatment of cancer=radiation, chemotherapy.  Complete the check your understanding questions on page 479 of Glencoe Text and the students with a double will complete the worksheet mitosis in a root tip.

Homework #12: Complete the reteaching worksheet

Tuesday:  A Day

Aim: Can I identify the steps of mitosis in a root tip?

Do Now: Unscramble these scientific terms. itssmoi, terssi hrmoctiads, haaapnse, gtuadhre llecs

Procedure: Students will identify the steps of mitosis by looking at pictures of steps during division in an onion root tip.

Homework # 13: Complete defining terms on pages323-324 of UPCO Book.

Wednesday: B Day

Aim: What are the stages of meiosis?

Do Now: Where does the sperm and egg come from?

Procedure: Meiosis is the production of sex cells. Sperm and the egg. Female=egg and male=sperm. In meiosis the cell divides twice Meiosis I and Meiosis II. Students will look at the atages of meiosis and try to determine the differeve between mitosis and meiosis. The difference is that the cells created throght meiotic division are smaller, and they have half the number of chromosomes from the original cell. Use the transparency 103 on the overhead to analyze the meiosis phases.  Discuss meiosis I and meiosis II.  List the phases and an explaination for each step of Mitosis.

Homework #13: Complete the review activity on page 325 of the UPCO Book.

Thursday: A Day

Aim: What are the stages of meiosis?

Do Now: Take a worksheet to your desk and complete the chromosome information.

Procedure: Important ** The chromosome number is halved in the four new sex cells that are produced as a reslut of meiosis. Enrichment activity Mitosis, Meiosis and the number of chromosomes.

Homework #14: Complete Part K on page 319 Q. 1-5 in UPCO Book

Friday: B Day

Aim: Can we identify all the steps of meiosis?

Do Now: What are the human sex cells? SPERM and EGG

Procedure: Ask students what would happen if we got 46 chromosomes from each parent. Chromosome number would double each generation. Discuss that meiosis is the reproduction of the sex cell. In meiosis the cell divides twice. This reproduction forms the sex cell. Using a transparency demonstrate the steps to the students and ask them to explain what is occurring during each step. Have students complete their steps on their study guide. Students will compare meiosis and mitosis. Page 320 of UPCO Book.

No Homework! Have a great weekend!

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