Lecture 6.Feb1.updated

Lecture 6.Feb1.updated - BIO 311C Spring 2010 Lecture 6...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
BIO 311C Spring 2010 Lecture 6 – Monday 1 Feb. 2010 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
1a The endoplasmic reticulum is responsible for: - targeting protein synthesis at the e.r. membrane; - synthesis of lipids and oligosaccharides; - processing molecules so they become functional; - assembly of new membrane. Summary of Different Functions of the Endoplasmic Reticulum and Golgi Bodies Golgi bodies are responsible for: - sorting membrane and lumen contents of golgi cisternae into different regions; - targeting incipient vesicles to different specific sites. *
Background image of page 2
Functions of Lysosomes Intracellular digestion Destruction of bacteria, other pathogens and toxins Recycling of worn-out organelles and occlusions Tissue development in complex multicellular organisms Autolysis (breakdown of cellular components) after the cell dies * 3 Review
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
a. expanding the plasma membrane, allowing the cell to become larger; b. confirring functions to the plasma membrane; c. exporting substances from the cell without releasing any contents of the cytoplasmic matrix. Transport vesicles from the golgi that fuse with the plasma membrane are capable of: * 4
Background image of page 4
Functions of the Plasma Membrane It keeps the cytoplasmic contents of the cell separated physically and chemically from the environment. It regulates the movement of substances into and out of the cell. It provides specific surface receptors for communication with other cells, viruses and chemical substances in the surrounding environment. It provides specific attachment sites for intracellular and extracellular components of the cell. * Model of the plasma membrane of an animal cell. Textbook Fig. 7.7, p. 128 Inside of cell Outside of cell plasma membrane 5
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Relationship Among Various Organelles of the Endomembrane System of Eukaryotic Cells Substances leave the lumen spaces of the endomembrane system into the cytoplasmic matrix one molecule at a time through lysosomes. Substances are transported into the extracellular space in bulk through the plasma membrane. * nuclear
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 19

Lecture 6.Feb1.updated - BIO 311C Spring 2010 Lecture 6...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online