September 12, Unit 1 Exam Review (Answers).notebook JEOPARDY! Unit 1 Exam Review Game September 6, Opening Slide

Transcription

1 Unit 1 xam Review (nswers).notebook JOPRY! Unit 1 xam Review ame September 6, 2016 Opening Slide 1

2 Unit 1 xam Review (nswers).notebook ow to play JOPRY! The class will be split into two teams, the R team and the RN team. When a question is displayed, the R team will use the keys on their clickers to answer. The RN team will use the keys to answer. The team with the IST PRNT of correct responses will earn the points for that question, N the right to pick the next category! Let's do a practice question to make sure everybody understands how to play. o on to the Practice Question Instructions 2

3 Unit 1 xam Review (nswers).notebook 1 Insert Question ere O O O O 12 Sample Question Sucrose is formed by a glycosidic linkage of a glucose ( 6 12 O 6 ) to a fructose ( 6 12 O 6 ). What is the molecular formula of sucrose? / : O 11 ( O O O for a dehydration reaction) o on to the ame oard Sample Question 3

4 Unit 1 xam Review (nswers).notebook toms & Molecules Water Organic Molecules Proteins & nzymes Miscellaneous $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 Red Team Score oard reen Team ame oard 4

5 Unit 1 xam Review (nswers).notebook 1 Insert Question ere toms & Molecules 100 pts Which of the following best describes the relationship between these atoms? They are both radioactive. They are both phosphorus anions. They are both isotopes of phosphorus. They contain 31 and 32 protons, respectively. / : They are both isotopes of phosphorus. ack 100 5

6 Unit 1 xam Review (nswers).notebook 2 Insert Question ere toms & Molecules 200 pts covalent chemical bond is one in which the inner shell electrons of one atom are transferred to the outer shell of another atom. outer shell electrons of one atom are transferred to the inner electron shells of another atom. outer shell electrons of two atoms are shared so as to satisfactorily fill the outer electron shells of both atoms. electrons are removed from one atom and transferred to another atom so that the two atoms become oppositely charged. / : outer shell electrons of two atoms are shared so as to satisfactorily fill the outer electron shells of both atoms. ack 200 6

7 Unit 1 xam Review (nswers).notebook 3 Insert Question ere toms & Molecules 300 pts Which of the following statements correctly describes any chemical reaction that has reached equilibrium? The reaction is now irreversible. oth forward and reverse reactions have halted. The concentration of products equals the concentration of reactants. The rate of the forward reaction equals the rate of the reverse reaction. / : The rate of the forward reaction equals the rate of the reverse reaction. ack 300 7

8 Unit 1 xam Review (nswers).notebook 4 Insert Question ere toms & Molecules 400 pts The mass number of an element can be easily approximated by adding together the number of in an atom of that element. energy levels. protons and neutrons. protons and electrons. neutrons and electrons. / : protons and neutrons ack 400 8

9 Unit 1 xam Review (nswers).notebook 5 Insert Question ere toms & Molecules 500 pts Which of the following statements is LS? toms of the various elements differ in their number of subatomic particles. ll atoms of a particular element have the same number of protons in their nuclei. n atom is the smallest unit of an element that still retains the properties of the element. Protons and electrons are electrically charged particles. Protons have one unit of negative charge, and electrons have one unit of positive charge. / : Protons and electrons are electrically charged particles. Protons have one unit of negative charge, and electrons have one unit of positive charge. ack 500 9

10 Unit 1 xam Review (nswers).notebook 1 Insert Question ere Water 100 pts Water is able to form hydrogen bonds because oxygen has a valence of 2. the oxygen atom in a water molecule has a weak positive charge. each of the hydrogen atoms in a water molecule is weakly negative in charge. the bonds that hold together the atoms in a water molecule are polar covalent bonds. / : the bonds that hold together the atoms in a water molecule are polar covalent bonds. ack

11 Unit 1 xam Review (nswers).notebook 2 Insert Question ere Water 200 pts What do cohesion, surface tension, and adhesion have in common with reference to water? ll increase when temperature increases. ll have to do with nonpolar covalent bonds. ll are properties related to hydrogen bonding. ll increase as the number of solute molecules increases. / : ll are properties related to hydrogen bonding. ack

12 Unit 1 xam Review (nswers).notebook 3 Insert Question ere Water 300 pts Water's high specific heat is mainly a consequence of the fact that water is a poor heat conductor. inability of water to dissipate heat into dry air. high specific heat of oxygen and hydrogen atoms. absorption and release of heat when hydrogen bonds break and form. / : absorption and release of heat when hydrogen bonds break and form. ack

13 Unit 1 xam Review (nswers).notebook 4 Insert Question ere Water 400 pts The molecular mass of glucose is 180 g. To make a 1.5 M solution of glucose, you should do which of the following? issolve 180 g of glucose in 1 L of water. issolve 270 g of glucose in 100 g of water. issolve 360 mg (milligrams) of glucose in 1 L of water. issolve 270 g of glucose in water, and then add more water until the total volume of the solution is 1 L. / : issolve 270 g of glucose in water, and then add more water until the total volume of the solution is 1 L. ack

14 Unit 1 xam Review (nswers).notebook 5 Insert Question ere Water 500 pts One liter of a solution of p 2 has how many more hydrogen ions (+) than 1 L of a solution of p 6? 4 times more 4,000 times more 10,000 times more 100,000 times more / : 10,000 times more ack

15 Unit 1 xam Review (nswers).notebook 1 Insert Question ere Organic Molecules 100 pts Which property of the carbon atom gives it compatibility with a greater number of different elements than any other type of atom? arbon forms ionic bonds. arbon has a valence of 4. arbon has 6 to 8 neutrons. arbon is highly electronegative. / : arbon has a valence of 4. ack

16 Unit 1 xam Review (nswers).notebook 2 Insert Question ere Organic Molecules 200 pts Observe the structures of glucose and fructose. These two molecules are enantiomers. structural isomers. saturated fatty acids. cis/trans (geometric) isomers. / : structural isomers ack

17 Unit 1 xam Review (nswers).notebook 3 Insert Question ere Organic Molecules 300 pts Which of these functional groups has the tendency to make the molecule it is part of more acidic? / : (carboxyl group) ack

18 Unit 1 xam Review (nswers).notebook 4 Insert Question ere Organic Molecules 400 pts Polymers of polysaccharides, fats, and proteins are all synthesized from monomers by which process? ionic bonding of the monomers the removal of water (dehydration reactions) the addition of water to each monomer (hydrolysis) connecting monomers together with glycosidic linkages / : the removal of water (dehydration reactions) ack

19 Unit 1 xam Review (nswers).notebook 5 Insert Question ere Organic Molecules 500 pts Which of the following could NOT be a component of a fat molecule? / : (fructose linear) ack

20 Unit 1 xam Review (nswers).notebook 1 Insert Question ere Proteins & nzymes 100 pts The chemical reaction illustrated below results in the formation of a (an) ester linkage. peptide bond. glycosidic linkage. phosphodiester linkage. / : peptide bond. ack

21 Unit 1 xam Review (nswers).notebook 2 Insert Question ere Proteins & nzymes 200 pts The tertiary structure of a protein is the order in which amino acids are joined in a polypeptide chain. unique three dimensional shape of a fully folded polypeptide. organization of a polypeptide chain into an a helix or ß pleated sheet. overall protein structure resulting from the aggregation of two or more polypeptide subunits. / : unique three dimensional shape of a fully folded polypeptide. ack

22 Unit 1 xam Review (nswers).notebook 3 Insert Question ere Proteins & nzymes 300 pts If an enzyme has been inhibited competitively, all of the following statements are correct XPT less energy will be necessary to initiate the reaction. the active site will be blocked by the inhibitor molecule. raising the substrate concentration will increase the rate of the reaction. the inhibitor molecule is likely to be chemically related to the substrate. / : less energy will be necessary to initiate the reaction. ack

23 Unit 1 xam Review (nswers).notebook 4 Insert Question ere Proteins & nzymes 400 pts If the p of an enzyme catalyzed reaction is increased from 7 to 11, the rate of the reaction will increase indefinitely. will decrease immediately. will decrease to zero because the enzyme will denature. cannot be determined without information regarding optimal p. / : cannot be determined without information regarding optimal p. ack

24 Unit 1 xam Review (nswers).notebook 5 Insert Question ere Proteins & nzymes 500 pts The red curve and the blue curve represent alternate pathways for the same reaction, one of which is catalyzed by an enzyme. Which letter represents the activation energy of the reaction without the enzyme? / : without the enzyme ack

25 Unit 1 xam Review (nswers).notebook 1 Insert Question ere Miscellaneous 100 pts Which of these is a correct representation of the hierarchy of biological organization from least to most complex? molecule, small intestine, large intestine, intestinal tissue, digestive system, organism molecule, intestinal cell organelle, intestinal cell, intestinal tissue, digestive system, organism organelle of a stomach cell, digestive system, large intestine, small intestine, intestinal tissue, organism organelle of an intestinal cell, digestive system, small intestine, large intestine, intestinal tissue, organism / : molecule, intestinal cell organelle, intestinal cell, intestinal tissue, digestive system, organism ack

26 Unit 1 xam Review (nswers).notebook 2 Insert Question ere Miscellaneous 200 pts controlled experiment is one in which there is one group for which the scientist controls all variables. the experiment is repeated many times to ensure that the results are accurate. there are at least two groups, one differing from the other by two or more variables. there are at least two groups, one of which does not receive the experimental treatment. / : there are at least two groups, one of which does not receive the experimental treatment. ack

27 Unit 1 xam Review (nswers).notebook 3 Insert Question ere Miscellaneous 300 pts Why is it important that an experiment include a control group? control group assures that an experiment will be repeatable. The control group provides a reserve of experimental subjects. Without a control group, there is no basis for knowing if a particular result is due to the variable being tested or to some other factor. The control group is the group that the researcher is in control of; it is the group in which the researcher predetermines the nature of the results. / : Without a control group, there is no basis for knowing if a particular result is due to the variable being tested or to some other factor. ack

28 Unit 1 xam Review (nswers).notebook 4 Insert Question ere Miscellaneous 400 pts If a heritable trait confers even a small increase in probability of survival and/or reproduction, then that trait will become more common in a population over many generations. This statement summarizes natural selection. artificial selection. survival of the fittest. developmental biology. / : natural selection. ack

29 Unit 1 xam Review (nswers).notebook 5 Insert Question ere Miscellaneous 500 pts Which of these conditions indicate positive feedback has occurred? lood pressure decreases; as a result, your heart rate increases. ot temperatures increase your body temperature above normal; you sweat. old temperatures decrease your body temperature below normal; you shiver. lood pressure decreases greatly; blood flow to the heart is inadequate, and blood pressure decreases. / : lood pressure decreases greatly; blood flow to the heart is inadequate, and blood pressure decreases. ack

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