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Lesson 2 Bacteria.notebook
Lesson 2 Bacteria.notebook

...           Chemoautotroph: use chemicals to produce their own energy/food           Obligate Aerobe: must have O2 to live           Obligate Anaerobe: dies in the presence of O2           Faculative Anaerobe: can live with or without O2 5.  Explain the difference between binary fission and conjugatio ...
cell transport review sheet
cell transport review sheet

... solution hypertonic, hypotonic or isotonic compared to the cell? a. Draw a picture and label the cell membrane and cytoplasm. b. Draw an arrow showing the direction of osmosis. (5) What happens to an animal cell when you add distilled water to it? Why? Is the distilled water hypertonic, hypotonic or ...
Biological Molecules
Biological Molecules

... The major classes of organic compounds are Proteins, Carbohydrates, Lipids and Nucleic acids. •All of these organic molecules always contain the elements Carbon (C), Hydrogen (H) and Oxygen (O). Proteins contain Nitrogen as well, and sometimes sulfur. Nucleic acids have C, H, O, N and phosphorus (P ...
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Cells Structure and Function

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Big Idea: Organisms 1 Cells Step Descriptor Step Before After Revised

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Ch 5 Cell Membrane and Transport

... Cholesterol - stiffens and strengthens the membrane. Glycoproteins - have an attached carbohydrate chain of sugar that projects externally for recognition and communication Glycolipids - protective and assist in various functions. ...
Ask the Doctor - Lyme Disease Association of Australia
Ask the Doctor - Lyme Disease Association of Australia

... variety of fundamental biological processes and specialized membrane functions. The passage of molecules across the phospholipid bilayer determines cell to cell communication. Take a look at the image of the human cell in Figure 1 again and think about how the cell in all its many forms, has differe ...
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Topic - CarstensenPortfolio

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Answers to problem sets 1 to 3

... in a very artificial state and they lack the normal information that they would otherwise be receiving from other cells and extracellular matrix components in a tissue. 2. One of the central differences between eukaryotes and prokaryotes is that the latter lack internal membranous organelles. Why do ...
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Fluorescent Methods to Study Biological Membranes - Beck-Shop

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Cells

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Ch.-7-Cellular-Structure-and-Function-Notes

... folded sacs and channels that serves as the site for protein and lipid synthesis a. rough ER: areas where ribosomes are attached for protein synthesis b. smooth ER: areas where no ribosomes are present; provides surface for synthesis of carbohydrates and lipids 4. Golgi apparatus: flattened stack of ...
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Academic Biology – Midterm Exam 2015-2016

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ACTIVE TRANSPORT

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Passive and Active Transport

... • When a cell is placed in a hypertonic solution, the concentration of the solute outside the cell is higher than inside. • Net movement of water is out of the cell. • Vacuoles are emptied of water, causing cells to shrink. ...
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Deconstructing the cell wall polysaccharide matrix of the

... The fungal cell wall is vital for the protection of fungal cells and for determining cell shape and function. This is of particular importance for pathogenic fungi, many of which elaborate specialised infection structures to invade their hosts. In spite of its importance, we know little about the st ...
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... 1. What are some things that can pass through a window screen? 2. What are some things that cannot pass through a window screen? Why is it important to keep these things from moving through the screen? 3. The cell is surrounded by a cell membrane, which regulates what enters and leaves the cell. Why ...
Paloma Maldonado Valerie Hart Dena Hazelwood
Paloma Maldonado Valerie Hart Dena Hazelwood

... If the nucleus didn't exist, the cell wouldn't have direction and the nucleolus, which is inside the nucleus, wouldn't be able to produce ribosomes.  If the ribosomes weren't present or weren't working correctly, proteins wouldn't be made.  If proteins aren't produced then there is nothing that is h ...
Chapter 2 – Cell Processes and Energy
Chapter 2 – Cell Processes and Energy

... b. Knowledge of the entire process 1. In words 2. In diagram form 3. In EQUATION form c. Photosynthesis and respiration can be thought of as opposites 1. Why? 2. What do the two processes do for the levels of oxygen and carbon dioxide in the atmosphere? d. Similarities/differences between RESPIRATIO ...
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1665- THE CELL THEORY -1839

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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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