BIO 151 EXAM 1 MC Flashcards _ Quizlet

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12/18/23, 10:39 AM BIO 151 EXAM 1 MC Flashcards | Quizlet https://quizlet.com/206681909/bio-151-exam-1-mc-flash-cards/ 1/4 Try the fastest way to create flashcards BIO 151 EXAM 1 MC Leave the first rating Students also viewed Terms in this set (61) Others also viewed these textbooks Search for a textbook or question Chemistry: The Central Science 14th Edition • ISBN: 9780134414232 Bruce Edward Bursten, Catherine J. Murphy, H. Eugene Lemay, Matthew E. Stoltzfus, Patrick Woodward, Theodore E. Brown 7,737 solutions UNIT 2 SOL REVIEW 24 terms Ellie_Kislow Preview AP bio unit 1 test 103 terms IleneTreto Preview Living enviroment test 10/12 112 terms emgorms4studying Preview Biological M Teacher 77 smilonr See an expert-written answer! a hypothesis is proposed explanation for a set of observations You hypothesize that salmon use visual cues to find their way back and you blind them and discover they are unable to find their way back. You have supported hypothesis a theory is explanation of an idea that is broad in scope and supported by a large body of evidence role of a control in an experiment provide a basis of comparison to the experimental group which scientist tested the hypothesis that microorganisms can arise by spontaneous generation Pasteur
12/18/23, 10:39 AM BIO 151 EXAM 1 MC Flashcards | Quizlet https://quizlet.com/206681909/bio-151-exam-1-mc-flash-cards/ 2/4 See an expert-written answer! the amount of energy before and after eating the hamburger is the same first law of thermodynamics example of the second law of thermodynamics knocking over house of cards basic structural and physiological unit of all living organisms cell process by which organisms maintain stable internal environment homeostasis mutation in __ results in change in __ that sometimes produces a ___ with altered structure and function DNA, RNA, protein 4 most common elements in living organisms C H O N which statement regarding matter is FALSE all matter exists in form of compounds which particles are found in nucleus of atom protons and neutrons what is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons 12 uncharged atom of boron has atomic number of 5 and atomic mass of 11. how many electrons? 5 what is atomic number of atom number of protons which is an ion CA2+ an isotope of nitrogen could have more neutrons than the usual nitrogen atom what happens to an atom if the electrons in the outer shell are altered? chemical properties of the atom will change __ forms when 2 atoms share electrons covalent bond table salt is formed when sodium has atomic number 11 and chlorine has atomic number of 17 sodium donates its single outer electron to chlorine in a water molecule, hydrogen and oxygen are held together by a __ bond polar covalent __ are weak bonds that are not strong enough to hold atoms together to form molecules but are strong enough to form bonds with and around large molecules hydrogen bonds
12/18/23, 10:39 AM BIO 151 EXAM 1 MC Flashcards | Quizlet https://quizlet.com/206681909/bio-151-exam-1-mc-flash-cards/ 3/4 correct order (decreasing) for relative strengths of chemical bonds covalent, ionic, hydrogen, van der waals tendency of water molecules to stick together cohesion what determines if a molecule is polar, nonpolar, or ionic electronegativity differences what statement regarding chemical reactions is false some rxns create electrons and others destroy them water's solid state is ___ than its liquid state and its ____ nature allows it to make a great solvent for salts and other compounds less dense. polar sweating is a useful cooling device for humans because water takes up a great deal of heat in changing from liquid to gaseous state surface tension and capillary action occur in water because it has hydrogen bonds which of the following statements about pH is true increase in hydrogen ion concentration is decrease in pH notation [H+] refers to concentration of H+ ions if you add strong acid like HCl to aqueous solution both H+ would be released in solution and pH decreases element has a weight of 131.3 and this is not a whole number b/c atomic weight is avg of mass numbers of all element's isotopes which has more molecules: mole of hydrogen or mole of carbon both contain same number of molecules what statement regarding carbon is false carbon as ability to bond with up to 6 other atoms which of the following is a carboxyl group -COOH hydroxyl group -OH amino group -NH2 statements about dehydration synthesis is false animal digestive systems use this process to break down food results of dehydration synthesis can be reversed by hydrolysis what is the general function of enzymes within a cell speed up chem reactions molecule formula C55H100O55 is polysaccharide
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12/18/23, 10:39 AM BIO 151 EXAM 1 MC Flashcards | Quizlet https://quizlet.com/206681909/bio-151-exam-1-mc-flash-cards/ 4/4 what list contains only polysaccharides cellulose, starch, glycogen storage form of carbohydrates is __ in animals and __ in plants glycogen...starch oil may be converted to a substance that is solid at room temp by adding hydrogens, decreasing the number of double bonds in molecules what features of fats make them hydrophobic fats have nonpolar hydrocarbon chains what summarizes structural differences btwn DNA and RNA DNA contains a different sugar than RNA what is true of base pairing between 2 DNA strands Cytosine binds with guanine which is a lipid steroids specimen has 30% adenine, how much cytosine 20% replication of DNA strand 5' TCAGCA 3' would produce 5'TGCTGA3' entropy is the amount of __ in a system disorder three main domains of organisms eukaryota bacteria archaea what types of bonds form from unequal sharing of electrons polar covalent attraction btwn slight positive charge on hydrogen and slight negative charge of nearby electronegative atom is hydrogen bond 4 levels of protein structure primary secondary tertiary quaternary monosaccharide's polymer polysaccharide amino acid polymer and covalent bond peptide, peptide bond 3 fatty acid and glycerol polymer nucleotide 2 types of cholesterol triglyceride

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