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1 Physiology Exam 1 Study chapters 1-5
2 The cytoplasm includes all material inside the cell membrane except for_____.
4 Which elements make up 90% of your body’s mass?
5 Carbon Hydrogen Oxygen
6 The alpha helix and pleated sheets are examples of ____ structure proteins.
8 A sequence of amino acids are examples of ____ structure proteins.
10 Fibrous proteins (Collagen) and Globular proteins (Hemoglobin) are examples of ____ structure proteins.
11 Quaternary structure
12 A 5M solution of 0.100 mL glucose contains how many grams of glucose? (m.w. of glucose is 180g)
13 M = #mols of solute L of solution 90g glucose
14 Name the six nonmembraneous organelles
15 Cilia Centrioles Microvilli Cytoskeleton Flagella Ribosomes
16 How many primary tissue types are in the human body?
18 What are the primary tissue types in the body?
19 Epithelial Connective Muscle Neural
20 Plasma is to blood as ____ is to cytoplasm.
22 Clathrin and Caveolae are used in which process by the cell to bring molecules in to the cytoplasm?
24 How does potocytosis differ from endocytosis?
25 Potocytosis uses caveolae rather than clathrin coated pits to bring molecules into the cell.
26 What happens to macromolecules that are too large to enter or leave cells through protein channels or carriers?
27 Cells use two basic mechanisms to import large molecules and particles: phogocytosis and endocytosis.
28 In osmosis water always moves towards the ___ solution, that is the solution with the ___ concentration of solute.
29 Hypertonic, Higher
30 During osmosis, what happens to water once all concentrations are equal?
31 Net movement of water stops.
32 What are the units of osmotic pressure?
33 atmospheres (atm) or millimeters of mercury (mm Hg)
34 If a cell is place in solution A and it swells, solution A is ____.
36 If a cell is place in solution B and it shrinks, solution B is ____.
38 If a cell is place in solution C and it doesn’t change size, solution C is ____.
40 The framework of cilia, flagella, centriole, and mitotic spindle is formed by ____.
42 What cellular specialization causes fluid to flow over the epithelial surface?
44 What is the main component of cytosol?
46 What layer of skin protects from bacterial, chemical, and mechanical injuries?
48 What layer of skin contains adipose tissue?
50 What is the movement of molecules across the cell membrane with the aid of a membrane protein?
51 Facilitated diffusion
52 Where are receptors molecules for chemical signaling located?
53 Cell Membrane Cytoplasm Nucleus
54 What is a bond in which atoms are completely lost or gained during bonding?
55 Ionic Bond
56 What is a molecule whose shared electrons are distributed so evenly that there are no regions of partial charge?
57 Non-polar molecules
58 What is an antioxidant?
59 A molecule that alters free radicals
60 What would we expect from a cell with an extensive Golgi Apparatus?
61 Secretion of a lot of material
62 What would we expect from a cell with a large number of Mitochondria?
63 Production of large amounts of energy (ATP).
64 You conduct a study on 20 18 year olds (subjects) to see how intensity of exercise influence heart rate. What is the dependent variable?
65 Heart rate
66 You conduct a study on 20 18 year olds (subjects) to see how intensity of exercise influence heart rate. What is the independent variable?
67 Intensity of exercise
68 What is a bond that results when two atoms share a pair of electrons, one from each atom?
69 Covalent bond
70 Of the following bonds; hydrogen, covalent, and Van der Waals Forces, which bond usually requires input of energy to be broken?
71 Covalent bonds
72 The cells of any tissue are held together by specialized connections called_____.
73 Cell Junctions
74 _____ junctions create cytoplasmic communication bridges between adjoining cells so that chemical and electrical signaling pass rapidly from one cell to the next.
75 Gap Junctions
76 What cell junction are occluding.
77 Tight junctions
78 Which type of junctions create what is called the blood-brain barrier?
79 Tight junctions
80 Which type use Cadherin proteins?
81 Desmosomes (anchoring junctions)
82 Which type of junctions Connexin proteins?
83 Gap junctions
84 What is protein specificity?
85 The ability of a protein to bind to a specific ligand or group of closely related molecules.
86 True or False? One function of a membrane protein is to produce energy.
88 Cytoplasmic protein fibers come in three sizes. Which is the largest?
90 Cytoplasmic protein come in three sizes. Which is the smallest?
91 Micro filaments
92 Cytoplasmic protein come in three sizes. Which is the mid-size?
93 Intermediate filaments
94 What is a molecule that binds to another molecule?
96 What is a ligand that binds to enzymes and membrane transporters.
98 The internal skeleton of a cell is composed of what?
99 Micro filaments Microtubels Intermidiate filaments
100 How do proteins and other substances get from the endoplasmic reticulum to the Golgi Apparatus?
102 In the cell what are the sacs that digest things called?
104 Where in the cell are lipids manufactured?
105 Smooth ER
106 What is a major difference of active transport and facilitated diffusion?
107 Facilitated diffusion does not require ATP
108 True of False? One function of the cytoskeleton is to maintain a critical size limit on the cell.
110 What is it called when a group of carrier proteins operate at its maximum rate?
112 Name the two ways the selectivity of a channel is determined.
113 Diameter of its central pore Electrical Charge of the amino acids that line the channel
114 This type of channel spends most of its time in a closed state?
115 Gated channels
116 This type of channel allows ions to move back and forth across the membrane without regulation and is sometimes called “leak channels or pores?”
117 Open Channels
Copyright © 2010 Pearson Education, Inc. Diffusion Osmosis: A Special Case of Diffusion –Osmosis is the diffusion of water across the cell membrane More.
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See also the NOTES documents posted online at our wikispace, the online self-quizzes posted at our wikispace, and all assignments and materials related.
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Essentials of Human Anatomy & Physiology Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Slides 3.1 – 3.19 Seventh Edition Elaine.
ELAINE N. MARIEB EIGHTH EDITION 3 Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings PowerPoint ® Lecture Slide Presentation by.
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1 The Plasma Membrane The Plasma Membrane - Gateway to the Cell copyright cmassengale.
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