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Cells functions
Cells functions

... finishes, sorts, tags & ships cell products  like “UPS shipping department” ...
CHAPTER 2
CHAPTER 2

... *series of folded membranes in materials can be processed and moved around inside of cell- transports materials *can be rough or smooth * if no ribosomes are attached they are “smooth endoplasmic reticulum- this type produces lipids that store energy * Rough endoplasmic reticulum have ribosomes ( ma ...
Chapter 11 Selected Solutions
Chapter 11 Selected Solutions

... which is wrong because the sodium is not covalently attached to the DS (dodecyl-sulfate). 5. Length of a fatty acid molecule: there is a bit of trigonometry here. We will do this in class. The textbook answer is 2 nm. And, 4 nm for a membrane: a bilayer. See how that relates to what we do in class! ...
Slide 1
Slide 1

... When you water a plant the water is taken up by the plant cells vacuoles. When the vacuoles are full it presses against the cell wall and the plant can then stand up straight. That’s why a plant that hasn’t been watered is wilted. text from ...
A View of the Cell
A View of the Cell

... – Capable of seeing internal cell structures ...
Practice Quiz
Practice Quiz

... 2. ___________________ is the division of the cell cytoplasm and its associated organelles. 3. The metabolic or growth phase of a cell’s life cycle is called ______________. 4. The process of discharging particles from inside the cell to the outside is called _______. 5. A red blood cell would swell ...
Cell Analogy Project 2
Cell Analogy Project 2

... Cell Analogy Project: Due December 17th An analogy is a comparison of two things. You are going to choose a plant or animal cell. You will be comparing the cell to a cartoon, videogame, or movie (Harry Potter is off limits). You must be able to explain why each structure is like that organelle in fu ...
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Cell_Structures

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3.2  Cell Organelles
3.2 Cell Organelles

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Cell Review packet
Cell Review packet

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1. All of the following characteristics are found in the phylum
1. All of the following characteristics are found in the phylum

... c. they are all autotrophic d. they are all parasites e. each group belongs to a different domain Note: The following can be used once, more than once, or not at all. a. Neurulation b. Cleavage c. Fertilization d. Organogenesis e. Gastrulation 8. Forms the morula B 9. Begins the formation of the thr ...
The Cell and Its Structures
The Cell and Its Structures

... 3. A typical plant cell viewed under a compound light microscope reveals the many different parts that have different functions. The part of the cell which surrounds and protects the contents of the cell is called the ... nucleus cytoplasm cell membrane (Text p. 122) ANIMAL ...
Grade 8 Science
Grade 8 Science

... many different things.  Cells require  proteins to grow, repair and reproduce,  among other things. ...
The Cell Theory - Ursuline High School
The Cell Theory - Ursuline High School

... Nucleus (eukaryotes only) Cytoplasm (an area) Organelles (structures with specialized functions) ...
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8_SEMIPERMEABLEMemb

... plasma membrane, fuse with the plasma membrane and dump their soluble contents outside of the cell. This process is called exocytosis and it is mechanism by which cells can secrete molecules like proteins. For example, the epithelial cells in the breast use secretion vesicles to put the major protei ...
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Chapter 3 Cells, Tissues, and Organ Systems
Chapter 3 Cells, Tissues, and Organ Systems

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Cell Membranes
Cell Membranes

... Molecules that are soluble in lipids (gases, steroid hormones) can pass through the lipid bilayer. c. Embedded cholesterol molecules strengthen the membrane and help make the membrane less permeable to water-soluble substances. d. Many types of proteins are found in the cell membrane, including tran ...
Cell Membrane Notes
Cell Membrane Notes

...  This is why sea animals can not live in fresh water (lakes).  They are not built to pump out the extra water ...
Cell Structure Lab
Cell Structure Lab

... cheek. It may be in clumps. (Scratching or digging into the cheek tissue is not necessary.) Lay the broad end of the toothpick with the cheek scraping in a drop of iodine on a slide. Roll the toothpick gently to dislodge the cheek cells. Discard the toothpick. Add a cover slip and examine the cheek ...
Human Physiology Lecture Reading Notes
Human Physiology Lecture Reading Notes

... junctions that hold tissues together, attach cells to extracellular matrix by linking cytoskeleton fibers to extracellular collagen and other protein fibers o Enzymes: catalyse chemical reactions that take place on cell’s external surface or just inside the cell o Receptors: part of body’s chemical ...
Warm
Warm

... pH is a measure of how acidic or alkaline something is. Enzymes work best under certain pH conditions to aid the chemical digestion of food. According to the graph: A. This enzyme works best with a pH of 6. B. This enzyme activity is optimal at a pH of ...
The proteins
The proteins

... heads facing outwards, and their non-polar, hydrophobic fatty acid tails facing each other in the middle of the bilayer.The lipid bilayer is semi-permeable, allowing only certain molecules to diffuse across the membrane. Different kinds of membranes can contain phospholipids with different fatty aci ...
Prokaryotic cell information - Mrs-Dow
Prokaryotic cell information - Mrs-Dow

... 2.2.4 State that prokaryotic cells divide by binary fission. Bacterial Reproduction Prokaryotes are much simpler in their organization than are eukaryotes. There are a great many more organelles in eukaryotes, as well as more chromosomes to be moved around during cell division. The typical method of ...
Diffusion and Osmosis
Diffusion and Osmosis

... • The non-polar interior of the cell membrane’s lipid bilayer repels ions and polar molecules and prevents substances from diffusing across the cell membrane. • Small or non-polar molecules can diffuse across the cell membrane down their concentration gradient. ...
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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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