Ch. 9.1 Cell Growth Cell Size Small 100 um

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Presentation transcript:

Ch. 9.1 Cell Growth Cell Size Small 100 um Why is it important that cells stay small? Maintain a high surface area to volume ratio

Ch. 9.1 Cell Growth Cell Size

Ch. 9.1 Cell Growth In a cell, the Surface Area is the plasma membrane. The Volume is the stuff inside of the cell.

Ch. 9.1 Cell Growth What are the benefits of cells staying small?

Ch. 9.1 Cell Growth What are the benefits of cells staying small? Efficiently and quickly move material in or out of the cell. Requires less energy Easier to maintain homeostasis in smaller spaces.

Ch. 9.1 Cell Growth Is it more energy efficient to heat a larger room or a smaller room in the winter time? Why?

Ch. 9.1 Cell Growth Cells must stay small in order to maintain homeostasis, use less energy, and perform cellular functions quickly.

Ch. 9.1 Cell Growth Cell Cycle Cells will grow to maximum size then decide to divide or stop growing. Interphase – G1, S, G2 Mitosis – PMAT Cytokinesis – cell splits

Ch. 9.1 Cell Growth

Ch. 9.1 Cell Growth Binary Fission only occurs in Prokaryotic Cells! (bacteria)

Ch. 9.1 Cell Growth TASKS! Discuss why cells need to be small. Include a discussion involving what would happen if a cell was large. List the stages of the cell cycle giving information involving each stage of Interphase. Discuss why bacteria are able to make a person sick quickly.