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CD63 Is a Component of Weibel
CD63 Is a Component of Weibel

Prokaryotes
Prokaryotes

...  Diversity is described in some detail in Chapter 11 – have a quite read through this chapter ...
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... concentrated • Localised conditions - pH and other such factors can be kept at optimal levels. The optimal pH level for one process in one part of the cell • Toxic / damaging substances can be isolated, e.g. digestive enzymes (that could digest the cell itself) are stored in lysosomes • Numbers and ...
1.2 Ultrastructure of Cells 2016
1.2 Ultrastructure of Cells 2016

... concentrated • Localised conditions - pH and other such factors can be kept at optimal levels. The optimal pH level for one process in one part of the cell • Toxic / damaging substances can be isolated, e.g. digestive enzymes (that could digest the cell itself) are stored in lysosomes • Numbers and ...
Osmosis Notes - Biology Teaching & Learning Resources
Osmosis Notes - Biology Teaching & Learning Resources

... The membrane must allow water molecules to diffuse through. It is permeable to water. If a concentrated solution is separated from a dilute solution by a suitable membrane, water will pass from the dilute to the concentrated solution. In fact, water passes both ways but faster from the dilute to the ...
1.Lecturenotes(fertilization
1.Lecturenotes(fertilization

... - Expansion of the extraembyronic coelom, also known as the chorionic cavity reshapes the exocoelomic cavity or primitive yolk sac into a secondary yolk sac and pinches off small remnants of the primitive yolk sac or exocoelomic cysts. - The extra-embryonic somatic mesoderm and adjacent cytotrophobl ...
Chapter concepts
Chapter concepts

... - Expansion of the extraembyronic coelom, also known as the chorionic cavity reshapes the exocollomic cavity or primitive yolk sac into a secondary yolk sac and pinches off small remnants of the primitive yolk sac or exocoelomic cysts. - The extra-embryonic somatic mesoderm and adjacent cytotrophobl ...
TAKS Objective #2
TAKS Objective #2

... 9.What is the difference between a prokaryotic and a eukaryotic cell? Prokaryotes do not have a true nucleus; whereas eukaryotes do have a true nucleus and other organelles ...
Open questions in the origin of eukaryotes
Open questions in the origin of eukaryotes

... • Reverse transcriptase (and retron elements) ...
Cell cycle and Mitosis
Cell cycle and Mitosis

... kinases move the cell onto the next stage of the cell cycle Kinases bind to proteins called cyclins forming a CDK complex. (cyclin dependent kinase complex) They phosphorylate a checkpoint protein which activates it and allows the cell cycle to move on. ...
Mitosis – PowerPoint
Mitosis – PowerPoint

...  Mitosis is exact nuclear division. The DNA in the parent cell ...
Open File
Open File

... The tension that is created by this attachment is what is sensed, which initiates the anaphase entry. The sensing mechanism ensures that the anaphase-promoting complex is free to break down securin, which is a protein, which in turn cuts the cohesins, the protein composite responsible for cohesion o ...
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Cell Structurewoyce2010

... • Smooth type: lacks ribosomes • Rough type (pictured): ribosomes embedded in surface ...
Section 10.1: Hormones: Chemical Regulators
Section 10.1: Hormones: Chemical Regulators

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QuizReview - bellevuebiology
QuizReview - bellevuebiology

... Determine what the main idea(s) are: What was the point of the activity/lab/discussion and what did we learn? ...
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... membranes which increases surface area allowing more space for more reactions • (MYP)-inherited through the ovum ...
The Modification of a Germ Cell to Form a
The Modification of a Germ Cell to Form a

... Cytoplasm - many components Haploid nucleus Cell membrane – will fuse with sperm plasma membrane ...
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Diffusion

... maintaining homeostasis within a cell. Most cells whether in multicellular or unicellular organisms, are subject to osmosis because they are surrounded by water solutions. ...
let`s talk about cells
let`s talk about cells

... Experimental activities: The importance of sunlight and soil osmotic environment for plants- what will happen if we let a plant grow in a dark box or on a salty soil? Why are the leaves of a pale green? Why is the plant getting withered? ...
The cells are joined by specialized tight
The cells are joined by specialized tight

Energy Converion: Mitochondria and Chloroplasts
Energy Converion: Mitochondria and Chloroplasts

... • Double membrane: outer and inner membrane • Outer membrane: • Smooth outer membrane • Separates inner membrane space from vacuole • It is permeable to molecules and enzymes involved in mitochondrial lipid synthesis ...
Distinctive characteristics of Archaea
Distinctive characteristics of Archaea

... • Found in a variety of anaerobic environments rich in organic matter • Causes cows to belch! • Methane: energy source vs. greenhouse gases ...
Transport Within Cells
Transport Within Cells

... All living things, all plants, animals, and humans, are composed of cells. A cell is the smallest living unit of matter. They are membrane covered structures that contains all of the materials necessary for life. You are composed of cells. Some living organisms are only 1 cell. They are called unice ...
Protozoa
Protozoa

... To hunt, protozoa have to be able to move about. Amoebas move about by extending parts of their cells called pseudopodia. They have fluid cell membranes that they can stretch out, bend and curve. As the membrane moves outward, the fluid and other parts inside the cell follow, flowing into the new bu ...
Growth
Growth

... weedy: world-wide distribution and easily grown in the lab. self-fertilizing: it is easy to generate and maintain genetic stocks. lifecycle: about 42 days at 200 C and continuous light. fecundity: up to 50,000 seeds per plant. mutable: yes, lots of ways. ...
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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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