BIO120H1 Lecture : Notes taken during lecture

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redtermite204

13 Jan 2011

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BIO120H1 Full Course Notes

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11 cells can move, proteins in cytosol can move and interact with each other, vesicles also move from different compartments in cell to cell surface. 13 know golgi, endoplasmic and what they do. Secretion of cell extracellular matrix so cells migrate by crawling along. Lysozome membrane bound acidic compartment digestion of things cell. Endoplasmic reticulum rough er has ribosomes docked there. Proteins translated into lumen proteins into golgi apparatus where enzymes modify and sort proteins into different vesicles, which then go to proper components into cell. 14 vacuole two types storage unit where macromolecules stored versus lysosome involved in degrading etc. 15 cytoplasm space outside of nucleus, including organelles. Eukaryotic cells have membranes into even smaller compartments/organelles, where there are different concentrations of ions, - compartmentalizations mean specialization of cell, of regions in cell. Membranes must be slightly different from each other unique membrane so contents are unique. Nuclear membrane lumen of er and nucleus is the same.

Related Questions

You study a transmembrane protein that is trafficked through theendoplasmic reticulum but ultimately âlivesâ in the plasmamembrane. Suppose the domain of this protein which is exposed onthe outer face of the endoplasmic reticulum membrane was covalently(and specifically) labeled with a fluorescent dye in a living cell.When the protein is distributed among cellular compartments, wherewould you expect the dye to be located?

Question 7 options:

A) The dye will be on the outer face of the endoplasmicreticulum, on the inner face of the Golgi apparatus, and on theextracellular face of the plasma membrane.

B) The dye will be on the inner face of the endoplasmicreticulum, on the inner face of the Golgi apparatus, and on theintracellular face of the plasma membrane.

C) The dye will be on the outer face of the endoplasmicreticulum, on the outer face of the Golgi apparatus, and on theintracellular face of the plasma membrane.

D) The dye will be on the outer face of the endoplasmicreticulum, on the outer face of the Golgi apparatus, and on theextracellular face of the plasma membrane.

Eukaryotic cells manufacture fibrous cytoskeletal proteins thatfunction in the cytoplasm to maintain cell shape by providingstructural support, move materials within the cell, and move theentire structure. Which of the following predictions about proteinsynthesis, processing, and trafficking applies to the general classof cytoskeletal proteins?

Question 8 options:

A)	They would be glycosylated in the Golgi apparatus.

B)	They might travel to the nucleus in a transport vesicle with aspecific zip code.

C)	They would initially contain signal sequences that would allowtheir entrance into the endoplasmic reticulum.

D)	They would be manufactured on free ribosomes in thecytoplasm.

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please fill in the blanks with the words given:

The ____________ Golgi apparatus is a series of membranous organelles that work together and communicate by means of transport ____________ vesicle(s).

These ____________ vesicle(s) can fuse readily with other organelles because they each contain membrane associated ____________ endoplasmic reticulum that enable communication.

For example, a protein that is synthesized is first transported to the ____________ endomembrane system, then moves to the ____________ endoplasmic reticulum via a ____________ Golgi apparatus.

This vesicle fuses readily with the ____________ proteins because the ____________ on the membrane target the ____________ on the ____________ 's membranes.

In this manner, endomembrane ____________ proteins are able to fuse readily with various organelles.

word choices:

golgi apparatus

endoplasmic reticulum

vesicle(s)

proteins endomembrane system

Please match the following:Nucleus, cytoplasm, plasma membrane, ribosome, rough endoplasmic reticulum, smooth endoplasmic reticulum, golgi apparatus, vesicles, lysosomes, central vacuole, mitochondrion, chloroplast, cell wall, cytoskeleton, gap junction, tight junction, plasmodesmataA. Structure between cells that forms leak proof sheetB. Stacks of membrane sacs that receive and modify protein products coming from the rERC. Fluid-Filled space between the plasma membrane and the nuclear membrane where organelles are suspendedD. Supports cell, maintains cell shape, acts as tracks for organelle movementE. Cellular respiration, bulk of ATP productionF. Outer border of plant cellsG. Storage, digestion, maintains, turgor pressure in plantsH. Genetic control center, directs cellular activitesI. Selective barrier of all cellsJ. Converts solar energy to chemical energyK. Structure that allows substances to flow from one cell to another cellL. protein factoryM. digestive compartment in animal cellsN. synthesis, modification, and packaging of proteinsO. transport shuttle busesP. stacks of tubules where carbohydrate and lipid are producedQ. Channels connecting neighboring plant cells

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BIO120H1 Lecture : Notes taken during lecture

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