1 / 27

Cell Theory

Learn about the fundamental differences between prokaryotic and eukaryotic cells, their organelles, and functions. Explore the basics of cell biology in an easy-to-understand format.

fritts
Download Presentation

Cell Theory

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Cell Theory • The cell is the basic unit of life • All organisms are composed of one or more cells. • All cells come from pre-existing cells.

  2. What does a cell look like? Draw and label what you can remember about a cell. There are no wrong or right answers

  3. Is this what you remember?

  4. The Two Types of Cells

  5. Today’s Lesson Focuses On: • Prokaryotic Cells • Eukaryotic Cells • The differences between prokaryotic and eukaryotic cells • Organelles and their functions

  6. Prokaryotic Cells

  7. Prokaryotic Cells: • Lack a nucleus • Cell’s DNA floats in the middle of the cell. • Do not have organelles • They do have ribosomes. • Are also known as bacteria.

  8. Eukaryotic Cells

  9. Eukaryotic Cells

  10. Eukaryotic Cells: • 10 time larger than prokaryotic cells • Include: plant, animal, fungi, and protists • Have a nucleus and many other membrane-covered organelles • DNA is stored in the nucleus of the cell • The DNA molecules are linear • All eukaryotic cells have a cell membrane • Some have a cell wall

  11. Prokaryotic Cells Eukaryotic Cells Comparison of The Two Types of Cells

  12. Prokaryotic Cells No nucleus No membrane-covered organelles DNA floats around (circular) Bacteria Eukaryotic Cells Nucleus Membrane-covered organelles DNA in nucleus (linear) All other cells ( plant, animal, fungi, protists) Comparison of The Two Types of Cells

  13. Animal DNA – Double Helix

  14. Eukaryotic Cells:The Inside Story

  15. Eukaryotic Cells What is an organelle? An organelle is a structure within a cell, sometimes surrounded by a cell membrane. They are structures that allow the cell to live, grow, and reproduce.

  16. Organelle’s and Their Functions Nucleus • Contains the cell’s DNA and is the control center of the cell

  17. Organelle’s and Their Functions Chloroplasts • Make food using energy from the sunlight

  18. Organelle’s and Their Functions Golgi Bodies • Processes and transports materials out of the cell

  19. Organelle’s and Their Functions Vacuole • Stores water and other material

  20. Organelle’s and Their Functions Lysosomes • Digestive system for cell

  21. Organelle’s and Their Functions Mitochondria • Break down food molecules to make ATP (energy)

  22. Organelle’s and Their Functions Endoplasmic Reticulum • Breaks down lipids, drugs and other substances, packages up proteins for release from the cell

  23. Organelle’s and Their Functions Ribosomes The site where amino acids are hooked together to make proteins

  24. Cell Wall .

  25. Cell Wall • Only found in plant cells and bacteria (prokaryotic cells). • They are tough, outer coverings that protect the cell and give it shape

  26. Cell Membrane • Protective layer around all cells. • It allows things to come in and out of the cell. • ( Like a flood gate) • Made of a phospholipidbilayer

  27. Cell Membrane

More Related