1 / 15

Structures and organelles

Structures and organelles. 7.3. Organelles. There are several organelles in an Eukaryotic cell. Organelles are structures that have specific jobs within the cell Each job is important and vital to the survival of the cell. Cytoplasm and cytoskeleton.

deavers
Download Presentation

Structures and organelles

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. Structures and organelles 7.3

  2. Organelles • There are several organelles in an Eukaryotic cell. • Organelles are structures that have specific jobs within the cell • Each job is important and vital to the survival of the cell.

  3. Cytoplasm and cytoskeleton • Cytoplasm- a semifluid inside the cell. A jelly like substance that holds organelles in place. • Cytoskeleton- supporting network of long, thin protein fibers that forma framework for the cell and provide an anchor for the organelles.

  4. Cell structures • Nucleus- the organelle that directs all cellular processes. • Contains genetic information (DNA) • Surrounded by nuclear membrane • Contains the nucleolus • City hall of cell

  5. Cell structures • Ribosomes- organelle that is responsible for protein production. • Ribosomes produced in nucleolus • Ribosomes are made of RNA and protein • Can be found free floating and on rough endoplasmic reticulum • Protein factories of cell

  6. Cell structures • Endoplasmic reticulum- membrane system of folded sacs and interconnected channels that serve as the site for protein and lipid synthesis. • Smooth ER- complex carb, lipid, phospholipid production • Rough ER- protein production • Surrounds nucleus • Protein/ other molecule factory of cell

  7. Cell structures • Golgi Apparatus/bodies- flattened stack of membranes that modify, sort and packages proteins into sacs called vesicles. • Post office of the cell

  8. Cell structures • Vacuoles- sac used to store food, enzymes, and other necessary materials. • Also used to store waste • Larger in plant cells, since they can’t dispose of waste. • Water tower of the cell

  9. Cell structures • Lysosomes- vesicles that contain substances that digest worn out or extra cell parts. • Filled with enzymes • Dump trucks of the cell

  10. Cell structures • Centrioles- organelles made of microtubules that function during cell division • Located in the cytoplasm • Crane/ construction equipment of the cell

  11. Cell structures • Mitochondria- the organelle that converts food particles (mainly sugar) into useable energy. • Site of cellular respiration • Powerhouse of the cell • More plentiful in plant cells since they can’t eat like animals can

  12. Cell structures • Chloroplast- organelles that capture light and convert it to chemical energy through photosynthesis • ONLY FOUND IN PLANT CELLS • Site of photosynthesis • Contains chlorophyll • Solar energy plants of the cell

  13. Cell structures • Cell wall- thick, rigid, mesh of fibers that surrounds the outside of the plasma membrane to protect plant cells and support them. • ONLY FOUND IN PLANT CELLS. • Border of the cell

  14. Cell structures • Cilia and flagella- hair like projections on the outside of the cell that help it move and swim. • Also helps with feeding the cell

  15. Key points for 7.3 • There are many important organelles in Eukaryotic cells • All organelles work together to keep the cell alive and healthy • The cell is very much so like a city, with several interworking parts.

More Related