1 / 15

Parts of a Cell

Parts of a Cell. Cell Wall. Found only in plant cells Gives support to a cell Made of complex sugars called cellulose. Cell Membrane. All cells have a membrane Protective barrier that encloses a cell

portia-benson
Download Presentation

Parts of a Cell

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. Parts of a Cell

  2. Cell Wall • Found only in plant cells • Gives support to a cell • Made of complex sugars called cellulose

  3. Cell Membrane • All cells have a membrane • Protective barrier that encloses a cell • In a plant cell, the membrane is JUST inside the cell wall. In animal cells, the membrane is the outermost layer • Contains proteins, lipids and phospholipids • Decides what goes in and out of the cell-nutrients goes in, waste goes out • Protects the cell from the outside environment

  4. Cytoskeleton • Web of proteins in the cytoplasm • Acts as a muscle and a skeleton • Keeps the membrane from collapsing • Helps some cells move This picture shows a cell with cytoskeleton

  5. Nucleus • Large organelle • Contains the cell’s DNA (which is information on how to make a cell’s proteins-proteins control chemical reactions in a cell) • Nucleus is covered by two membranes • “Control center” of the cell • A nucleus could contain a nucleolus which is where a cell begins to make ribosomes

  6. Ribosomes • Organells that make up protein • Smallest of all organelles • Not covered by a membrane • Proteins made within the ribosomes • All cells have ribosomes

  7. Endoplasmic Reticulum • Many chemical reactions take place here • Nicknamed ER-is a system of folded membranes in which proteins, lipids, and other materials are made • It’s either rough ER or smooth ER • Rough ER is covered in ribosomes-usually found near the nucleus • Smooth ER makes lipids, and breaks down toxic materials that could damage the cell

  8. Mitochondria • Main power source of the cell • This is where sugar is broken down to produce energy • Covered by 2 membranes • Energy released by mitochodria is stores in ATP • Most ATP is made in the inner membrane of mitochondria • The are the size of bacteria

  9. Chloroplasts • Found in plant and algae cells • Organells in which photosynthesis takes place • Have 2 membranes and their own DNA • Chloroplasts are green (because they contain chlorophyll which is a green pigment)

  10. Golgi Complex • Packages and distributes proteins • Looks like smooth ER • Lipids and proteins from the ER are sent to the Golgi Complex where the lipids and proteins are assigned to do different jobs • Processes and transports proteins and other materials OUT of the cell

  11. Vesicle • Bubble that forms from the Golgi complex is a vesicle • A vesicle is a small sac that surrounds material to be moved into OR out of the cell • All eukaryotic cells have vesicles • Also move materials within a cell • Different vesicles have different jobs

  12. Lysosomes • Vesicles responsible for digestion in a cell • Contain digestive enzymes • Destroy worn-out organelles, get rid of waste, and protect the cell from foreign invaders • Found mainly in animal cells

  13. Vacuoles • Another type of vesicle • In plants and fungi, some vacuoles act as lysosomes-they store digestive enzymes and aid in digestion • The central vacuole in plant cells store water and other liquids • Some plants wilt when their central vacuole loses water

  14. Animal Cell

  15. Plant Cell

More Related