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Understanding Cell Structure: Traits, Types, and Functions

This section covers the fundamental aspects of cell structure, detailing the common traits shared by all cells, the comparison between prokaryotic and eukaryotic cells, and the vital components that make up a cell. Prokaryotic cells lack membrane-bound structures and include bacteria, while eukaryotic cells feature these structures, as seen in animals, plants, fungi, and protists. The lesson explains the roles of the cell wall, cell membrane, cytoplasm, nucleus, and chromatin, providing a comprehensive overview of cellular organization and function.

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Understanding Cell Structure: Traits, Types, and Functions

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  1. Chapter 2 “Cells”Section 1: “Cell Structure Pages 38 – 40 LESSON 1

  2. COMMON CELL TRAITS • A cell is the smallest unit that is capable of performing life functions.

  3. COMPARING CELLS • The size & shape of a cell relates to its function. (job it does)

  4. Prokaryotic Cells(proh KAYR ee yah tihk) • cells without membrane-bound structures • EX: bacteria pond scum

  5. Eukaryotic Cells(yew KAYR ee yah tihk) • cells with membrane-bound structures • EX: animals, plants, fungi and protists

  6. CELL WALL • protects the cell • gives shape • is made of cellulose • A cell wall is found in plants, algae, fungi, & most bacteria.

  7. CELL MEMBRANE • Outer covering, protective layer around ALL cells • For cells with cell walls,the cell membrane is inside the cell wall • Allows food, oxygen, & water into the cell & waste products out of the cell.

  8. CYTOPLASM • gelatin-like inside cell membrane • constantly flows • aka protoplasm

  9. NUCLEUS • Directs all cell activities • Contains instructions for everything the cell does • These instructions are found on a hereditary material called DNA • Usually the largest organelle

  10. CHROMATIN • contains genetic code that controls cell • made of DNA & proteins

  11. This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.

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