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AP Biology – PowerPoint Notes – Chapter 9
AP Biology – PowerPoint Notes – Chapter 9

...  E.g., a line of cancer cells called HeLa cells have been dividing in vitro since 1951   ...
05 Cytoskeleton
05 Cytoskeleton

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3 - Dr. Jerry Cronin

... space (a) Tight junctions: Impermeable junctions prevent molecules from passing through the intercellular space. Copyright © 2010 Pearson Education, Inc. ...
The Golgi Apparatus - Global Science Books
The Golgi Apparatus - Global Science Books

... be exported to the Golgi apparatus, and then have to be retrieved. In addition, certain membrane proteins such as SNAREs reach the Golgi as part of the transport machinery between ER and Golgi, and must therefore be recycled to the ER to maintain efficient transport of proteins out of the ER. A mech ...
chromosomes - sandsbiochem
chromosomes - sandsbiochem

... 1. _____________________ As cell grows bigger demand on DNA “genetic library” becomes too great Ex: Small town library has 1000 books. As town grows and more people borrow books, there may be a waiting list to read the most popular titles ...
Endosymbiotic Hypothesis (Endosymbiosis)
Endosymbiotic Hypothesis (Endosymbiosis)

... similarly (binary fission) • 1920: Ivan Wallin notices same thing for mitochondrion. • (nobody notices) • In 1967, Margulis offers evidence that these organelles have separate DNA from the rest of the cell (their own separate genome), and….. ...
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3/10 Kingdom PROTISTA •algae, protozoa, and slime molds •have

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Observing Protozoa - Science

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PowerPoint 簡報
PowerPoint 簡報

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PPT File
PPT File

... Copyright © 2011 Pearson Education Inc. ...
The inner ear The inner ear can be divided into
The inner ear The inner ear can be divided into

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Exam Big Ideas Answers
Exam Big Ideas Answers

Inner nuclear membrane protein transport is mediated by multiple
Inner nuclear membrane protein transport is mediated by multiple

... gain access during interphase because the nuclear surface area roughly doubles as chromatin is replicated, but the density of proteins in the NE does not diminish during this growth [13– 15]. In particular, the spacing between NPCs does not change throughout interphase because new NPCs are inserted ...
Sample Pages - Hodder Education
Sample Pages - Hodder Education

... animal cells increase the surface area of the cell membrane? ...
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Section 17 Genome Structure - The University of Arizona
Section 17 Genome Structure - The University of Arizona

... Most proteins, and all lipids, etc. in organelles are synthesized in the cytoplasm and imported. Genes required for aerobic respiration/electron transport (mitochondria) and photosynthesis (chloroplasts). Organelle genomes almost always have all their genes on a single circular DNA molecule. Each ce ...
Bacteria - Cronodon
Bacteria - Cronodon

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Cell Cycle Regulation
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Author - Princeton ISD
Author - Princeton ISD

... o What does the shape/structure of a cell indicate about its function? o What cell structures do prokaryotes have? o What cell structures do eukaryotes have? o What cell structures are unique to animal cells? o What cell structures are unique to plant cells? Develop an appreciation for the individua ...
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In This Issue - The Journal of Cell Biology

... the opposite situation—having too much tau attached to microtubules— may be just as bad. Overexpressing tau in neuroblastoma cell lines, primary hippocampal neurons, or retinal ganglion cells leaves microtubules intact. Rather than forming filaments, the overexpressed tau binds to microtubules and a ...
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Plant or animal Inside a cell Cell Trivia Q $100 Q $200 Q $300 Q

... A living cell has certain characteristics in common with a working factory. Match the areas in the factory where the following important activities would occur to the names of the cellular organelle that has a similar function. Factory list: 1.main office where supervisor keeps the plans and oversee ...
liposomes
liposomes

... can also be designed to deliver drugs in other ways. Liposomes that contain low (or high) pH can be constructed such that dissolved aqueous drugs will be charged in solution (i.e., the pH is outside the drug's pI range). As the pH naturally neutralizes within the liposome (protons can pass through s ...
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Endomembrane system

The endomembrane system is composed of the different membranes that are suspended in the cytoplasm within a eukaryotic cell. These membranes divide the cell into functional and structural compartments, or organelles. In eukaryotes the organelles of the endomembrane system include: the nuclear membrane, the endoplasmic reticulum, the Golgi apparatus, lysosomes, vesicles, endosomes and the cell membrane. The system is defined more accurately as the set of membranes that form a single functional and developmental unit, either being connected directly, or exchanging material through vesicle transport. Importantly, the endomembrane system does not include the membranes of mitochondria or chloroplasts.The nuclear membrane contains two lipid bilayers that encompass the contents of the nucleus. The endoplasmic reticulum (ER) is a synthesis and transport organelle that branches into the cytoplasm in plant and animal cells. The Golgi apparatus is a series of multiple compartments where molecules are packaged for delivery to other cell components or for secretion from the cell. Vacuoles, which are found in both plant and animal cells (though much bigger in plant cells), are responsible for maintaining the shape and structure of the cell as well as storing waste products. A vesicle is a relatively small, membrane-enclosed sac that stores or transports substances. The cell membrane, is a protective barrier that regulates what enters and leaves the cell. There is also an organelle known as the Spitzenkörper that is only found in fungi, and is connected with hyphal tip growth.In prokaryotes endomembranes are rare, although in many photosynthetic bacteria the plasma membrane is highly folded and most of the cell cytoplasm is filled with layers of light-gathering membrane. These light-gathering membranes may even form enclosed structures called chlorosomes in green sulfur bacteria.The organelles of the endomembrane system are related through direct contact or by the transfer of membrane segments as vesicles. Despite these relationships, the various membranes are not identical in structure and function. The thickness, molecular composition, and metabolic behavior of a membrane are not fixed, they may be modified several times during the membrane's life. One unifying characteristic the membranes share is a lipid bilayer, with proteins attached to either side or traversing them.
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