Do Now  The plasma membrane is comprised on heads and tails in the phospholipid bilayer. Describe the characteristics of these heads and tails.  __________________ is the part of the nucleus that is responsible for synthesizing ribosomes.  Homework : complete review packet that I will hand out today

Nucleus Control center of the cell Protects DNA Prokaryotic cells do not have a defined nucleus: they have a nucleoid region

Lets Draw the nucleus!

The Parts of The Eukaryotic Cell 2) Controls A ) Nucleus Regulates cell function. Surrounded by a double-layered membrane (nuclear enveloped) with large pores that allow materials to pass in and out of the nucleus. Contains chromatin – long tangles of DNA.

The Parts of The Eukaryotic Cell 2) Controls B) Nucleolus Found in the nucleus and responsible for ribosome production. Ribosomes are the sites of protein production.

The Parts of The Eukaryotic Cell 3) Assembly Cytoplasm The jelly-like material that surrounds the organelles.

Cytoplasm  The fluid in the cell also called cytosol  Contains enzymes, fatty acids, sugars, and amino acids that are used to keep the cell working.  Cyclosis or cytoplasmic streaming: The movement of cytoplasm within a living cell.  It transports nutrients, enzymes, and larger particles within cells.

Endoplasmic Reticulum  Functions as a manufacturing and packaging system  network of membranes found throughout the cell and connected to the nucleus.  Two types: Rough ER and Smooth ER

The Parts of The Eukaryotic Cell 4) Transport A) Endoplasmic reticulum Folded membrane that acts as the cell’s delivery system. Smooth E.R. contains enzymes for lipid synthesis. Rough E.R. is studded with ribosomes for protein synthesis.

Golgi apparatus  Protein packaging factories (post office/UPS of the cell) Lets Draw!

The Parts of The Eukaryotic Cell 4) Transport B) Golgi apparatus (or Golgi body) A series of flattened sacs where newly made lipids and proteins from the E.R. are repackaged and shipped to the plasma membrane.

 When enough proteins have been synthesized, they collect and are pinched off in vesicles