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12,200 | NDQ_012444 | translation of rna to protein | during translation, the mrna is translated from __________ into __________. | null | null | Multiple Choice | a. nucleic acid, amino acids, b. nucleotides, protein, c. nucleotides, amino acids, d. nucleic acid, protein | c |
12,201 | NDQ_012445 | translation of rna to protein | what is the role of the trna molecules? | null | null | Multiple Choice | a. The tRNA determines the order of the amino acids in the protein., b. The tRNA reads the mRNA code and brings a specific amino acid to the, c. The tRNA brings the genetic message to the ribosome from the nucleus., d. all of the above | b |
12,202 | NDQ_012446 | translation of rna to protein | what is the sequence of the anticodon that binds to a cua codon? | null | null | Multiple Choice | a. GAU, b. GAT, c. CUA, d. CTA | a |
12,203 | NDQ_012447 | translation of rna to protein | which of the following statements concerning codons is true? | null | null | Multiple Choice | a. Codons are read in the ribosome., b. Codons are found in the mRNA sequence., c. Codons consist of three RNA bases., d. All of the above statements are true. | d |
12,204 | NDQ_012448 | translation of rna to protein | ggg codes for glycine and ccc codes for proline. if the sequence within a gene is ggggggcccgggccc, what is the amino acid sequence of the corresponding protein? | null | null | Multiple Choice | a. Gly-Gly-Pro-Gly-Pro, b. Pro-Pro-Gly-Pro-Gly, c. Gly-Gly-Pro-Pro-Gly, d. Pro-Pro-Gly-Gly-Pro | b |
12,205 | NDQ_012479 | types of echinoderms | not all echinoderms have the ability to move around. | null | null | Multiple Choice | a. true, b. false | a |
12,206 | NDQ_012480 | types of echinoderms | sand dollars can be found both in the ocean and on land. | null | null | Multiple Choice | a. true, b. false | b |
12,207 | NDQ_012484 | types of echinoderms | which is a characteristic of a starfish? | null | null | Multiple Choice | a. capture prey for their own food, b. bottom feeders with long, narrow arms, c. have movable spines, d. armless and elongated | a |
12,208 | NDQ_012485 | types of echinoderms | which is a characteristic of a brittle star? | null | null | Multiple Choice | a. capture prey for their own food, b. bottom feeders with long, narrow arms, c. have movable spines, d. armless and elongated | b |
12,209 | NDQ_012486 | types of echinoderms | which echinoderms are able to move relatively quickly? | null | null | Multiple Choice | a. sea cucumbers, b. sand dollars, c. asteroids, d. brittle stars | d |
12,210 | NDQ_012487 | types of echinoderms | which echinoderms have movable spines? | null | null | Multiple Choice | a. sand dollars, b. starfish, c. sea cucumbers, d. brittle stars | a |
12,211 | NDQ_012488 | types of echinoderms | echinoderms that cannot move include | null | null | Multiple Choice | a. feather stars, b. starfish, c. sand dollars, d. none of the above | a |
12,212 | NDQ_012498 | types of nutrients | vegetable oil, olive oil, and nuts are good sources of carbohydrates. | null | null | Multiple Choice | a. true, b. false | b |
12,213 | NDQ_012499 | types of nutrients | unsaturated lipids are needed in small amounts for good health. | null | null | Multiple Choice | a. true, b. false | a |
12,214 | NDQ_012503 | types of nutrients | what makes up the membrane that surrounds cells? | null | null | Multiple Choice | a. carbohydrates, b. lipids, c. proteins, d. amino acids | b |
12,215 | NDQ_012504 | types of nutrients | most lipids in your diet should be | null | null | Multiple Choice | a. trans fats., b. saturated fats., c. unsaturated fats., d. None, your diet should not contain any lipid. | c |
12,216 | NDQ_012505 | types of nutrients | which statement is associated with starch? | null | null | Multiple Choice | a. Starches are found in vegetables and grains., b. Starch is made of thousands of glucose monomers., c. Starch is a large, complex carbohydrate., d. All of the above describe starch. | d |
12,217 | NDQ_012506 | types of nutrients | why are complex carbohydrates better than simple carbohydrates? | null | null | Multiple Choice | a. They have carbohydrates that are good for you., b. They provide energy longer and more steadily., c. They are found in fruit., d. all of the above | b |
12,218 | NDQ_012507 | types of nutrients | what type of nutrient is fiber? | null | null | Multiple Choice | a. carbohydrate, b. lipid, c. protein, d. unsaturated fat | a |
12,219 | NDQ_012508 | urinary system | the urinary system is the same as the excretory system. | null | null | Multiple Choice | a. true, b. false | b |
12,220 | NDQ_012509 | urinary system | urine is mostly water. | null | null | Multiple Choice | a. true, b. false | a |
12,221 | NDQ_012513 | urinary system | what brings urine from the kidneys to the urinary bladder? | null | null | Multiple Choice | a. the urine tubes, b. the ureters, c. the urethra, d. the kidney tubes | b |
12,222 | NDQ_012514 | urinary system | what is the organ that collects urine? | null | null | Multiple Choice | a. the kidneys, b. the ureters, c. the urinary bladder, d. the urinary container | c |
12,223 | NDQ_012515 | urinary system | urine leaves the body through the | null | null | Multiple Choice | a. ureter., b. bladder., c. urethra., d. kidneys. | c |
12,224 | NDQ_012516 | urinary system | which organ is not part of the urinary system? | null | null | Multiple Choice | a. the kidney, b. the ribcage, c. the urethra, d. the bladder | b |
12,225 | NDQ_012517 | urinary system | which organ is not part of the excretory system? | null | null | Multiple Choice | a. the kidney, b. the lungs, c. the heart, d. the large intestine | c |
12,226 | NDQ_012548 | vision correction | about 1 of every 2 people need some sort of vision correction. | null | null | Multiple Choice | a. true, b. false | a |
12,227 | NDQ_012549 | vision correction | signs of myopia usually begin in childhood. | null | null | Multiple Choice | a. true, b. false | a |
12,228 | NDQ_012553 | vision correction | an object is focused in front of the retina. this person has | null | null | Multiple Choice | a. myopia., b. hyperopia., c. nearsightedness., d. both a and c | d |
12,229 | NDQ_012554 | vision correction | an object is focused in back of the retina. this person has | null | null | Multiple Choice | a. myopia., b. hyperopia., c. nearsightedness., d. both a and c | b |
12,230 | NDQ_012555 | vision correction | common signs of myopia include | null | null | Multiple Choice | a. difficulty in maintaining a clear focus on close objects., b. difficulty is seeing the whiteboard at school., c. headaches after close work., d. all of the above | b |
12,231 | NDQ_012556 | vision correction | what is the main goal of corrective lenses? | null | null | Multiple Choice | a. The corrective lens changes the focus, so images move through the cornea., b. The corrective lens changes the focus, so images moves through the eye lens., c. The corrective lens changes the focus, so images move through the pupil., d. The corrective lens changes the focus, so images fall on the retina. | d |
12,232 | NDQ_012557 | vision correction | people with myopia will usually need glasses or contact lenses when they | null | null | Multiple Choice | a. work at a computer., b. read a book., c. watch TV or drive a car., d. all of the above | c |
12,233 | NDQ_012558 | vitamins and minerals | minerals are organic compounds. | null | null | Multiple Choice | a. true, b. false | b |
12,234 | NDQ_012559 | vitamins and minerals | vitamins are a good source of energy. | null | null | Multiple Choice | a. true, b. false | b |
12,235 | NDQ_012563 | vitamins and minerals | what minerals are needed for muscles and nerves to work normally? | null | null | Multiple Choice | a. potassium and phosphorus, b. potassium and sodium, c. calcium and phosphorus, d. calcium and magnesium | b |
12,236 | NDQ_012564 | vitamins and minerals | what vitamin is important in blood clotting? | null | null | Multiple Choice | a. vitamin A, b. vitamin B9, c. vitamin C, d. vitamin K | d |
12,237 | NDQ_012565 | vitamins and minerals | what vitamin can be found in foods like oranges, grapefruits, and broccoli? | null | null | Multiple Choice | a. vitamin A, b. vitamin C, c. vitamin D, d. vitamin K | b |
12,238 | NDQ_012566 | vitamins and minerals | low levels of what mineral may cause osteoporosis? | null | null | Multiple Choice | a. calcium, b. magnesium, c. potassium, d. sodium | a |
12,239 | NDQ_012567 | vitamins and minerals | what mineral can be found in bananas? | null | null | Multiple Choice | a. chloride, b. magnesium, c. phosphorus, d. potassium | d |
12,240 | NDQ_012761 | acids and bases | Acids turn blue litmus paper red. | null | null | Multiple Choice | a. true, b. false | a |
12,241 | NDQ_012762 | acids and bases | Which of the following substances has a pH greater than 7? | null | null | Multiple Choice | a. normal (clean) rain, b. orange juice, c. bananas, d. soap | d |
12,242 | NDQ_012763 | acids and bases | Sodium chloride is an example of a base. | null | null | Multiple Choice | a. true, b. false | b |
12,243 | NDQ_012764 | acids and bases | Acids produce hydrogen gas when they react with | null | null | Multiple Choice | a. salts., b. bases., c. water., d. metals. | d |
12,244 | NDQ_012765 | acids and bases | Bases cannot conduct electricity. | null | null | Multiple Choice | a. true, b. false | b |
12,245 | NDQ_012766 | acids and bases | Properties of bases include | null | null | Multiple Choice | a. a sour taste., b. a slippery feel., c. the ability to conduct electricity., d. two of the above. | d |
12,246 | NDQ_012767 | acids and bases | Which of the following acids is strongest? | null | null | Multiple Choice | a. sulfuric acid, b. lemon juice, c. acid rain, d. vinegar | a |
12,247 | NDQ_012768 | acids and bases | All acids are harmful. | null | null | Multiple Choice | a. true, b. false | b |
12,248 | NDQ_012769 | acids and bases | A strong acid has a high concentration of hydrogen ions. | null | null | Multiple Choice | a. true, b. false | a |
12,249 | NDQ_012770 | acids and bases | Products of a neutralization reaction include | null | null | Multiple Choice | a. hydroxide ions., b. hydrogen ions., c. water., d. two of the above | c |
12,250 | NDQ_012772 | acids and bases | The symbol pH represents acidity. | null | null | Multiple Choice | a. true, b. false | a |
12,251 | NDQ_012773 | acids and bases | Ammonia is a stronger base than is bleach. | null | null | Multiple Choice | a. true, b. false | b |
12,252 | NDQ_012775 | acids and bases | Acids are used to make fertilizer. | null | null | Multiple Choice | a. true, b. false | a |
12,253 | NDQ_012778 | acids and bases | Acid rain promotes rapid growth of plants. | null | null | Multiple Choice | a. true, b. false | b |
12,254 | NDQ_012780 | acids and bases | Normal (clean) rainwater has a pH of 7. | null | null | Multiple Choice | a. true, b. false | b |
12,255 | NDQ_012781 | acids and bases | Litmus is the only indicator for detecting acids and bases. | null | null | Multiple Choice | a. true, b. false | b |
12,256 | NDQ_012782 | acids and bases | type of chemical reaction in which an acid reacts with a base | null | null | Multiple Choice | a. acid, b. acidity, c. base, d. pH, e. salt, f. litmus, g. neutralization | g |
12,257 | NDQ_012783 | acids and bases | Acids have many important uses in industry. | null | null | Multiple Choice | a. true, b. false | a |
12,258 | NDQ_012784 | acids and bases | ionic compound that produces hydroxide ions when dissolved in water | null | null | Multiple Choice | a. acid, b. acidity, c. base, d. pH, e. salt, f. litmus, g. neutralization | c |
12,259 | NDQ_012785 | acids and bases | ionic compound formed when an acid and a base react | null | null | Multiple Choice | a. acid, b. acidity, c. base, d. pH, e. salt, f. litmus, g. neutralization | e |
12,260 | NDQ_012786 | acids and bases | When sodium hydroxide dissolves in water it forms hydrogen ions. | null | null | Multiple Choice | a. true, b. false | b |
12,261 | NDQ_012787 | acids and bases | concentration of hydrogen ions in a solution | null | null | Multiple Choice | a. acid, b. acidity, c. base, d. pH, e. salt, f. litmus, g. neutralization | b |
12,262 | NDQ_012788 | acids and bases | A neutral substance has a pH of 7. | null | null | Multiple Choice | a. true, b. false | a |
12,263 | NDQ_012789 | acids and bases | A salt forms when an acid and base react. | null | null | Multiple Choice | a. true, b. false | a |
12,264 | NDQ_012790 | acids and bases | ionic compound that produces hydrogen ions when dissolved in water | null | null | Multiple Choice | a. acid, b. acidity, c. base, d. pH, e. salt, f. litmus, g. neutralization | a |
12,265 | NDQ_012791 | acids and bases | measure of the acidity of a solution | null | null | Multiple Choice | a. acid, b. acidity, c. base, d. pH, e. salt, f. litmus, g. neutralization | d |
12,266 | NDQ_012792 | acids and bases | compound used to detect acids and bases | null | null | Multiple Choice | a. acid, b. acidity, c. base, d. pH, e. salt, f. litmus, g. neutralization | f |
12,267 | NDQ_012793 | acids and bases | Which of the following substances is an acid? | null | null | Multiple Choice | a. milk., b. bleach., c. ammonia., d. seawater. | a |
12,268 | NDQ_012794 | acids and bases | A very strong base has a pH close to | null | null | Multiple Choice | a. 1, b. 5, c. 7, d. 14 | d |
12,269 | NDQ_012795 | acids and bases | Properties of acids include | null | null | Multiple Choice | a. a bitter taste., b. a slippery feel., c. the ability to conduct electricity., d. two of the above | c |
12,270 | NDQ_012796 | acids and bases | Which of the following ionic compounds forms an acid when dissolved in water? | null | null | Multiple Choice | a. KCl, b. HCl, c. NaCl, d. MgCl2 | b |
12,271 | NDQ_012797 | acids and bases | Bases are used to make all of the following products except | null | null | Multiple Choice | a. soap., b. concrete., c. deodorant., d. car batteries. | d |
12,272 | NDQ_012798 | acids and bases | If a solution has a greater concentration of hydrogen ions than does pure water, then the solution | null | null | Multiple Choice | a. has a pH greater than 7., b. is a base., c. is an acid., d. two of the above | c |
12,273 | NDQ_012799 | acids and bases | Which of the following chemical equations represents a neutralization reaction? | null | null | Multiple Choice | a. NaOH + H2 O OH + Na+, b. Na+ + Cl NaCl, c. HCl + NaOH NaCl + H2 O, d. Mg + 2HCl H2 + MgCl2 | c |
12,274 | NDQ_012807 | radioactivity | The scientist who discovered radioactivity was | null | null | Multiple Choice | a. Curie., b. Geiger., c. Becquerel., d. none of the above | c |
12,275 | NDQ_012810 | radioactivity | All nuclei that emit radiation are | null | null | Multiple Choice | a. radioactive., b. very large., c. unstable., d. two of the above | d |
12,276 | NDQ_012812 | radioactivity | The radioactive isotope of carbon is | null | null | Multiple Choice | a. carbon-12., b. carbon-13., c. carbon-14., d. none of the above | c |
12,277 | NDQ_012813 | radioactivity | Which combination of protons and neutrons would most likely result in a stable nucleus? | null | null | Multiple Choice | a. 4 protons and 2 neutrons, b. 4 protons and 4 neutrons, c. 4 protons and 6 neutrons, d. 4 protons and 8 neutrons | b |
12,278 | NDQ_012816 | radioactivity | Rocks may release radiation due to | null | null | Multiple Choice | a. formation of radioactive gas in the rocks., b. radioactive elements in the rocks., c. carbon-12 in the rocks., d. two of the above | d |
12,279 | NDQ_012821 | radioactivity | Some elements naturally change into different elements. | null | null | Multiple Choice | a. true, b. false | a |
12,280 | NDQ_012824 | radioactivity | Only unstable nuclei emit radiation. | null | null | Multiple Choice | a. true, b. false | a |
12,281 | NDQ_012826 | radioactivity | The radioactive isotope of carbon has fewer neutrons than other isotopes of carbon. | null | null | Multiple Choice | a. true, b. false | b |
12,282 | NDQ_012827 | radioactivity | Radon gas is harmful when it burns and causes pollution. | null | null | Multiple Choice | a. true, b. false | b |
12,283 | NDQ_012828 | radioactivity | Background radiation is generally considered to be safe for living things. | null | null | Multiple Choice | a. true, b. false | a |
12,284 | NDQ_012829 | radioactivity | There is no way to detect radiation. | null | null | Multiple Choice | a. true, b. false | b |
12,285 | NDQ_012830 | radioactivity | Radiation can break bonds in biochemical molecules. | null | null | Multiple Choice | a. true, b. false | a |
12,286 | NDQ_012831 | radioactivity | Radioactive isotopes can be used to determine the ages of fossils. | null | null | Multiple Choice | a. true, b. false | a |
12,287 | NDQ_012832 | radioactivity | Radiation is harmless to nonliving things such as metals. | null | null | Multiple Choice | a. true, b. false | b |
12,288 | NDQ_012833 | radioactivity | You cannot see radiation but you can always feel it. | null | null | Multiple Choice | a. true, b. false | b |
12,289 | NDQ_012834 | radioactivity | A single large exposure to radiation can burn the skin. | null | null | Multiple Choice | a. true, b. false | a |
12,290 | NDQ_012835 | radioactivity | Human activities are responsible for almost all the radiation in the environment. | null | null | Multiple Choice | a. true, b. false | b |
12,291 | NDQ_012836 | radioactivity | Radiation can be used to generate electricity. | null | null | Multiple Choice | a. true, b. false | a |
12,292 | NDQ_012837 | radioactivity | Any exposure to radiation causes burns and destroys blood cells. | null | null | Multiple Choice | a. true, b. false | b |
12,293 | NDQ_012838 | radioactivity | A Geiger counter works because radiation changes atoms of a gas to ions. | null | null | Multiple Choice | a. true, b. false | a |
12,294 | NDQ_012839 | radioactivity | radioactive gas that forms in rocks underground | null | null | Multiple Choice | a. radiation, b. background radiation, c. radioactivity, d. radon, e. radioisotope, f. Antoine Becquerel, g. Marie Curie | d |
12,295 | NDQ_012840 | radioactivity | scientist who discovered radioactivity | null | null | Multiple Choice | a. radiation, b. background radiation, c. radioactivity, d. radon, e. radioisotope, f. Antoine Becquerel, g. Marie Curie | f |
12,296 | NDQ_012841 | radioactivity | ability of an atomic nucleus to give off charged particles and energy | null | null | Multiple Choice | a. radiation, b. background radiation, c. radioactivity, d. radon, e. radioisotope, f. Antoine Becquerel, g. Marie Curie | c |
12,297 | NDQ_012842 | radioactivity | low level of radiation that occurs naturally in the environment | null | null | Multiple Choice | a. radiation, b. background radiation, c. radioactivity, d. radon, e. radioisotope, f. Antoine Becquerel, g. Marie Curie | b |
12,298 | NDQ_012843 | radioactivity | charged particles and energy emitted by an unstable nucleus | null | null | Multiple Choice | a. radiation, b. background radiation, c. radioactivity, d. radon, e. radioisotope, f. Antoine Becquerel, g. Marie Curie | a |
12,299 | NDQ_012844 | radioactivity | scientist who discovered polonium and radium | null | null | Multiple Choice | a. radiation, b. background radiation, c. radioactivity, d. radon, e. radioisotope, f. Antoine Becquerel, g. Marie Curie | g |
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