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 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
video Rapid growth; organelle Division of nucleus (mitosis) replication; DNA replication; Division of cytoplasm (cytokinesis) 3 phases – G1, S, G2 Forms 2 identical daughter cells
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
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
Growth; organelle replication; cellular function Growth; organelle replication; DNA Replication Growth; organelle replication; cellular function Division of a cell’s nucleus & its contents Division of a cell’s cytoplasm & its contents
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”
video
PROPHASE METAPHASE ANAPHASE LAST PHASE – CYTOKINESIS DIVISION OF CYTOPLASM TO FORM 2 IDENTICAL CELLS TELOPHASE M-H video Mitosis song
Recommend
More recommend
