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Membrane practice Test

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Membrane Practice Test AP Biology Choose the response which best completes the following statements or answers the following questions. 1. If a solution outside a cell is more concentrated so that the cell loses water to its environment,??the external solution is said to be __________ to the cell contents.??(1.) hypertonic (2.) in equilibrium (3.) isotonic (4.) hypotonic 2. Which mechanism requires energy? (1.) facilitated diffusion (2.) osmosis (3.) diffusion (4.) active transport 3. Pinching in of fluids by a unicellular organism is the process of (1.) phagocytosis (2.) osmosis (3.) pinocytosis??(4.) exocytosis (5.) facilitated diffusion

Human Anatomy Notes Unit 1

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Amber Lankhorst Human Anatomy Notes: Body Planes and Regions- The left image shows three key anatomical planes of study: frontal, or coronal; transverse, or horizontal; and sagittal. The frontal plane is drawn through the body longitudinally, dividing the body into anterior and posterior portions. The transverse plane is drawn horizontally through the body, dividing it into superior and inferior parts. The sagittal plane is drawn through the body longitudinally, dividing it into left and right sides In the right image, terms of orientation are provided for comparison purposes. Superior refers to structures that are closest to the top of the skull. Inferior refers to structures closest to the plantar surface of the foot. Cranial relates to the head.

Campbell Biology 9th Edition Chapter 2 & 3

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K E Y C O N C E P T S 2.1 Matter consists of chemical elements in pure form and in combinations called compounds 2.2 An element?s properties depend on the structure of its atoms 2.3 The formation and function of molecules depend on chemical bonding between atoms 2.4 Chemical reactions make and break chemical bonds O V E R V I E W A Chemical Connection to Biology The Amazon rain forest in South America is a showcase for the diversity of life on Earth. Colorful birds, insects, and other animals live in a densely-packed environment of trees, shrubs, vines, and wildflowers, and an excursion along a waterway or a forest path typically reveals a lush variety of plant life. Visitors traveling near the Amazon?s headwaters in Peru are therefore surprised to come across

Campbell Biology 9th Edition Chapter 5

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LEVELS OF PROTEIN STRUCTURE Primary Structure?the unique sequence of amino acids, type sequence and number; determines the other three structures It is held together by peptide bonds between the carboxyl group of one amino acid with the amino group of another amino acid B. Secondary Structure? regular repeated coiling and folding of the polypeptide caused by H?bonds between atoms in the polypeptide backbone (a hydrogen on a nitrogen and a double?bonded oxygen atom) see Fig. 5.20 p. 76 a. alpha helix? a delicate coil held together by hydrogen bonding between every fourth peptide bond b. Beta pleated sheet? where regions of the chain lie parallel to each other LEVELS OF PROTEIN STRUCTURE

Campbell Biology 9th Edition Chapter 6

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A Tour of the Cell Chapter 6 Concept 6.2: Eukaryotic cells have internal membranes that compartmentalize their functions The basic structural and functional unit of every organism is one of two types of cells: prokaryotic or eukaryotic Only organisms of the domains Bacteria and Archaea consist of prokaryotic cells Protists, fungi, animals, and plants all consist of eukaryotic cells ? 2011 Pearson Education, Inc. Comparing Prokaryotic and Eukaryotic Cells Basic features of all cells Plasma membrane Semifluid substance called cytosol Chromosomes (carry genes) Ribosomes (make proteins) ? 2011 Pearson Education, Inc. Prokaryotic cells are characterized by having No nucleus DNA in an unbound region called the nucleoid No membrane-bound organelles

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