CHAPTER 3 LESSON 1 THE CELL CYCLE November 1, 2017 What are the - - PowerPoint PPT Presentation

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Jun 28, 2023 283 likes •381 views

CHAPTER 3 LESSON 1 THE CELL CYCLE November 1, 2017 What are the phases of the cell cycle? Pg. 86 The cell cycle: growth development division INTERPHASE: growth and development; cell spends most of its life in interphase; 3

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CHAPTER 3 LESSON 1

THE CELL CYCLE November 1, 2017

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What are the phases of the cell cycle?

Pg. 86

– The cell cycle: growth  development  division – INTERPHASE: growth and development; cell spends most of its life in interphase; 3 stages (G1, S, G2) – MITOTIC PHASE: reproduction of cells; mitosis and cytokinesis; creates 2 identical cells – LENGTH OF CELL CYCLE: depends on type of cell; most human cells take about 24 hours to complete a cycle

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video Rapid growth; organelle replication; DNA replication; 3 phases – G1, S, G2 Division of nucleus (mitosis) Division of cytoplasm (cytokinesis) Forms 2 identical daughter cells

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1. In what portion of the cell cycle is a

copy of the chromosomes made? S phase

2. Are cells dividing or growing during

interphase?

3. What happens to organelles during

all 3 stages of interphase? Organelles are replicated/copied

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Label parts a, b, and c using the word bank below. Answer the INFER question. RAISE YOUR HAND WHEN YOU’RE DONE SO I CAN GRADE IT.

C b

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Division of a cell’s nucleus & its contents Division of a cell’s cytoplasm & its contents

Growth; organelle replication; cellular function Growth; organelle replication; cellular function Growth; organelle replication; DNA Replication

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GREEK/LATIN ORIGIN OF MITOSIS

– Mitos is a Greek term that means “warp thread.” Warp threads are long pieces of thread or yarn that are used in weaving. What part of the cell do you think warp thread describes? – “-osis” means “process” in Latin. – “Thread-process”

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video

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M-H video Mitosis song