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Which of the following is NOT a category of biological molecules?Select one:a. lipidb. carbohydratec. proteind. amino acidWhich of the following scientists coined the term “cell”?Select one:a. Anton Van Leeuwenhoekb. Lamarckc. Robert Hooked. Alfred WallaceWhich of the following instruments is used to measure pH.Select one:a. pH meterb. balancec. graduated cylinderd. meter stickWhich of the following enzymes is not correctly paired with its substrate?Select one:a. amylase – starchesb. lipase – lipidsc. sucrase – nucleic acidsd. protease – proteinsIf an enzyme changes shape so much that it can no longer bind with a substrate, this is called ____.Select one:a. malfunctionb. distortionc. denaturationd. proliferatioA beaker measures ____.Select one:a. absorbanceb. colorationc. massd. volumeEuglena have the ability to perform photosynthesis. Which of the following structures allows them to perform this function?Select one:a. flagellab. chloroplastsc. cilliad. pseudopodiaWhich of the following structures are present in plant cells and not present in animal cells?Select one:a. centriolesb. contractile vacuolec. central vacuoled. cell walle. both central vacuole and cell wallQuestion 10Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textIf an iodine solution turns blue/black, which of the following substances is present?Select one:a. proteinb. lipidc. nucleic acidd. starchQuestion 11Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textDuring the scientific method lab, students were required to use a balance. This instrument is used to measure the ____ of a liquid solution.Select one:a. massb. volumec. absorbanced. lengthQuestion 12Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textWhich of the following instruments is used to measure volume?Select one:a. balanceb. graduated cylinderc. meter stickd. volumetric calibratorQuestion 13Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textThe movement of water from high concentration to low concentration is called ____.Select one:a. diffusionb. osmosisc. active transportd. water flowQuestion 14Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion text____ are complex carbohydrates, while ____ are simple carbohydrates.Select one:a. monosaccharides …. starchesb. disaccharides …. monosaccharidesc. starches …. monosaccharidesd. disaccharides …. starchesQuestion 15Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textA substance with a pH value of 6 is a(n) ____.Select one:a. acidb. basec. neutrald. can not be determinedQuestion 16Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textWhich of the following food items contain mostly protein?Select one:a. onionb. potatoc. eggd. appleQuestion 17Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textWhich of the following substances can get a reaction underway or speed it up?Select one:a. lipidb. basec. enzymed. carbohydrateQuestion 18Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textWhich of the following environmental factors can influence the effectiveness of enzyme activity?Select one:a. temperatureb. pHc. sunlightd. both temperature and pHQuestion 19Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textWhich of the following statements is true regarding prokaryotic and eukaryotic cells.Select one:a. Prokaryotic cells have a cell wall, and eukaryotic cells do not.b. Eukaryotic cells have a nucleus, prokarytic cells do not.c. Eukaryotic cells are much smaller than prokaryotic cells.d. Prokaryotic cells have membraned organelles, and eukaryotic cells do not.Question 20Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textWhich of the following food items contain mostly starch?Select one:a. onionb. potatoc. eggd. appleQuestion 21Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textWhich of the following best describes why buffers are used during experiments?Select one:a. Buffers are used to increase the volume of a solution, which makes it is easier to measure.b. Buffers act as biological catalysts and help reactions occur more efficiently.c. Buffers are used to help maintain a certain pH value of a solution.d. Buffers are used to slow down the reactions, which allows students more time to write down their results.Question 22Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textWhich of the following testing reagents and biological molecules are paired correctly?Select one:a. biuret …. proteinb. iodine …. reducing sugarc. benedict’s …. lipidd. Sudan IV …. starchQuestion 23Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textThe Amoeba has the ability to reach out and grab nearby food using which of the following structures?Select one:a. flagellab. ciliac. contractile vacuoled. pseudopodQuestion 24Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textWhich of the following is a distinguishing structure of cardiac muscle cells?Select one:a. cell wallb. intercalated discsc. mitochondirad. nucleusQuestion 25Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textIn the image provided with this question, what is structure B?Select one:a. stageb. course adjustmentc. ocular lensd. objective lensesQuestion 26Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textIn the image provided with this question, what is structure B?Select one:a. flagellab. cytoplasmc. nucleusd. pseudopodQuestion 27Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textIn the image provided with this question, what is structure A?Select one:a. flagellab. ciliac. contractile vacuoled. pseudopodQuestion 28Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textIn the image provided with this question, which instrument is used to measure mass?Select one:a. Instrument Ab. Instrument Bc. Instrument Cd. Instrument DQuestion 29Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textIn the image provided with this question, what is structure C?Select one:a. cell wallb. cytoplasmc. nucleusd. pseudopodQuestion 30Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textWhich of the following buffers are found in most living organisms?Select one:a. phosphateb. carbonatec. nitrated. both phosphate and carbonateQuestion 31Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textWhich of the following testing reagents required heat to view the results?Select one:a. iodineb. Benedict’sc. biuretd. Sudan IVQuestion 32Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textA rock with a mass of 40 g is placed in a graduated cylinder of water. The water displacement is from the 30 ml mark to the 35 ml mark on the graduated cylinder. What is the density of that rock?Select one:a. 5 g/mlb. 200 g/mlc. 45 g/mld. 8 g/mlQuestion 33Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textA substance with a pH value of 12 is a(n) ____.Select one:a. acidb. basec. neutrald. can not be determinedQuestion 34Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textWhich of the following pH values is more acidic than the other ones?Select one:a. 14b. 5c. 10d. 3Question 35Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textIn the image provided with this question, what is structure C?Select one:a. stageb. course adjustmentc. ocular lensd. objective lensesQuestion 36Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textIn the image provided with this question, what is structure A?Select one:a. cell membraneb. ciliac. nucleusd. contractile vacuoleQuestion 37Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textIf you are viewing a specimen using the 40x objective lens, then what is the total magnification of the specimen you are viewing. (Note: The ocular lens is 10x.)Select one:a. 4xb. 40xc. 50xd. 400xQuestion 38Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textA distinguishing feature of the Paramcium is the hair-like structures that protrude through the plasma membrane. What are these structures called?Select one:a. flagellab. ciliac. contractile vacuoled. pseudopodQuestion 39Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textIn the image provided with this question, what is structure B?Select one:a. cell membraneb. ciliac. nucleusd. contractile vacuoleQuestion 40Not yet answeredMarked out of 1.0Not flaggedFlag questionQuestion textWhich of the following substances can NOT diffuse through the dialysis tubing?Select one:a. iodineb. waterc. starchd. All of these substances can diffuse through the bag.

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