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Unit 7 Cell Growth & Division

Unit 7 Cell Growth & Division

Unit 7 Cell Growth & Division. Amoeba. Something to Think About !!!! When a living thing grows, what happens to its cells? 2. Does an animal get larger because each cell increases in size or because it makes more of them?. Answers to Think About It:

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Cell Growth & Division Question: Why do cells divide?

Cell Growth & Division Question: Why do cells divide?

Cell Growth & Division Question: Why do cells divide?. Why do we need to make more cells?. Q: Who has bigger cells?. A: Same cell size, RonRon has MORE!. From One Cell to Many. Sea Urchin Cell Division. Why do we need to make more cells?.

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Cell Signaling & Signal Transduction

Cell Signaling & Signal Transduction

Cell Signaling & Signal Transduction. Steroid hormones (also thyroid hormone) enter cells to regulate gene expression. Signal molecules too big or polar to enter a target cell transmit information by signal transduction ,. Signal Transduction Themes: intracellular 2nd messengers

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The Cell Cycle

The Cell Cycle

The Cell Cycle. Mitosis & Cytokinesis. Why do living things grow?. This baby king penguin grows because he produces more and more cells. How do cells know when to quit dividing?. Cell growth is CAREFULLY controlled. Only certain cells are allowed to divide rapidly.

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Cell Growth & Division

Cell Growth & Division

Cell Growth & Division. Mitosis. Growth of an organism. Replacement of old or damaged cells. Why do Cells Reproduce?. Chromosomes. Each cell has lots of DNA, but it must be condensed in order to fit in the nucleus DNA is organized and packaged into structures called chromosomes

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