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Cell Transport Notes
Cell Transport Notes

... • Water is so small and there is so much of it the cell can’t control it’s movement through the cell membrane. ...
BIOLOGY EOC QUESTIONS BIOCHEMISTRY
BIOLOGY EOC QUESTIONS BIOCHEMISTRY

... 7. Which best describes how enzymes function in the body? A. Enzymes are converted in products by the reaction they catalyze. B. Enzymes lower the activation energy of reactions. C. One enzyme can catalyze many different reactions. D. An enzyme is used once and then destroyed by the cell ...
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Rally Coach – Plant Cells and Organelles App

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... _____1. Diffusion is the movement of molecules from where they are highly concentrated to where they are less concentrated. _____2. Osmosis (a special type of diffusion) is the movement of water from where it is highly concentrated to where it is less concentrated, across a cell membrane. _____3. Ac ...
Cell Structure - Mrs. Barrett`s Biology Site
Cell Structure - Mrs. Barrett`s Biology Site

... prokaryotic – do not have a membrane-enclosed nucleus or organelles e.g. bacteria. Procaryotes have a single, circular chromosome of DNA & ribosomes and are very small. Basic cell structure is revealed by the light microscope (1000x) e.g. nucleus, cell membrane, cytoplasm, cell wall, chloroplast, v ...
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Unit 3 Cell Structures and Functions
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Keystone Review Packet #1 Answers

... through which materials are transported within the cell. The membranes of the ER may also serve as sites of biochemical reactions. There are two types smooth and rough. The rough appearance is due to the presence of ribosomes on the membrane. Rough ER is found mainly in cells involved in protein syn ...
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Project 1: Cells

... Cells are the fundamental units of living material. They contain special structures called organelles, which have specific functions for maintaining the life and health of the cell. A. Animal Cells -- The bodies of all living organisms are made of cells; without cells there would be no life. 1. Cell ...
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... 1. Active transport of Na+ and K+ creates concentration gradients 2. The Na+ gradient provides the energy for “up-hill transport” 3. Coupled transport of sucrose into the cytosol ...
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Chapter 1 • Lesson 1 Cell Structure Objectives: 1,1.1,1.1.2 Key

... widgets. Widgets are generally produced in small shops around the city, these small shops can be built by the carpenter's union (whose headquarters are in town hall). After the widget is constructed, they are placed on special carts which can deliver the widget anywhere in the city. In order for a w ...
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6.4 Cell Specialization PPT

... •  cell specialization – characteristics of certain cells that makes them uniquely suited to perform a particular function within an organism •  examples of specialization •  movement •  react to environment •  make certain products ...
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... 11. If an object and its surroundings absorb and reflect radiation equally then the object will be: a. undetectable. b. reflected. c. refracted. d. radiated. e. fluoresced. 12. Increasing the refractive index of the medium between an object and the objective lens increases: a. refraction. b. reflect ...
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... • Used to build and repair body structures • Enzymes (a type of protein) help chemical processes happen in cells. • Found in meat, beans, nuts ...
Cell Transport
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... 2 Types of Endocytosis A. Pinocytosis- “cell drinking” –involves transport of solutes or fluids B. Phagocytosis- “cell eating” –movement of large molecules or whole cells into a cell *animal cells ingest bacteria and destroy them via phagocytosis ...
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... waste to move into and out of the cell. ...
Cell Structure & Function
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... other materials in cell • Recycles and decomposes proteins, fats, and carbohydrates ...
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... proteins and lipids. The approximate composition is proteins, 55 %; phospholipids, 25 %; cholesterol, 13% other lipids, 4 %; and carbohydrates, 3 %. Cell membranes are selectively permeable semipermeable (some things can pass through and some can’t). 1) Lipid Barrier of the Cell Membrane Its basic s ...
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Cell Membrane and Transport

... because in water a group of phospholipid molecules arranges itself into a bilayer, with the hydrophilic heads facing outwards into the water and the hydrophobic tails facing inwards, therefore avoiding contact with water. This is the basic structure of a cell membrane. There are also cholesterol mol ...
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cell specialization

... • unevenly thickened cell walls • used for support • celery ...
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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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