Do Now Makeups. 4. In which organelle would water and dissolved materials be stored? A. 1 B. 2 C. 3 D. 5. A. mitochondria B.
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1 Do Now Makeups Name: Date: 1. Which organelle is primarily concerned with the conversion of potential energy of organic compounds into suitable form for immediate use by the cell? A. mitochondria B. centrosomes 4. In which organelle would water and dissolved materials be stored? A. 1 B. 2 C. 3 D. 5 C. ribosomes D. vacuoules 2. Which structures function mainly in transport? 5. Most of the enzymes involved in aerobic cellular respiration are located in the organelle labeled A. 1 B. 2 C. 3 D Which structure, composed mainly of proteins and lipids, aids in maintaining homeostasis in a cell? A. chromosome B. centrosome A. A and F B. B and D C. C and F D. C and D 3. A student filled a bag of dialysis tubing with a milky-white starch solution and placed the bag in a beaker of iodine-water as shown in the diagram. An hour later, the student observed that the starch solution had turned blue-black (positive test for starch). What is the most probable explanation for the change? C. cell membrane D. nucleolus 7. Which process requires the expenditure of cellular energy? A. passive transport B. active transport C. osmosis D. diffusion 8. Which molecules must be present in order for energy production to occur in the mitochondria of an animal cell? A. chlorophyll molecules A. The iodine diffused into the bag. B. The starch was changed to sugar. C. The iodine was changed to starch. B. carbon dioxide molecules C. lactic acid molecules D. oxygen molecules D. The starch diffused out of the bag. page 1
2 9. Select the cell compound, chosen from the list below, which is best described by the following phrase. 13. The picture shown illustrates a process by which protein molecules may enter a cell. Which process is illustrated in this diagram? A double-stranded molecule that contains instructions for the manufacture of cell protein. A. DNA B. Messenger RNA C. Transfer RNA D. ATP 10. Select the cell compound, chosen from the list below, which is best described by the following phrase. Provides energy for biochemical reactions A. DNA B. Messenger RNA C. Transfer RNA D. ATP 11. Select the cell compound, chosen from the list below, which is best described by the following phrase. A. pinocytosis B. osmosis C. diffusion D. passive transport 14. Which organelle is present in the cells of a mouse but not present in the cells of a bean plant? A. cell wall B. chloroplast C. cell membrane D. centriole 15. Cell II most likely represents a plant cell due to the presence of Replicates prior to mitosis A. DNA B. Messenger RNA C. Transfer RNA D. ATP 12. The ribosomes is an organelle that functions in the process of A. A B. B C. E D. F A. phagocytosis B. pinocytosis C. protein synthesis D. cellular respiration 16. In both cells, the organelles labeled E are the sites of A. secretion B. starch synthesis C. aerobic respiration D. food storage 17. Which structures are found in every living cell? A. a plasma membrane and cytoplasm B. chloroplasts and mitochondria C. a cell wall and nucleus D. centrioles and chromosomes page 2 Do Now Makeups
3 18. The structural formulas shown represent certain organic compounds found in living cells. (1) (2) (3) (4) (5) A strand of RNA is a polymer made up of many repeating units of the compound represented by A. 1 B. 5 C. 3 D Which formula represents a monosaccharide? A. 1 B. 2 C. 3 D Which formula represents a molecule of glycerol? A. 1 B. 2 C. 3 D. 5 page 3 Do Now Makeups
4 21. The diagram shown represents the building block of a large molecule known as a 26. A portion of which type of molecules is represented by the structural formula shown? A. protein B. fatty acid C. carbohydrate D. nucleic acid 22. Vegetable oils, such as corn oil, belong to which general class of organic substances? A. lipids B. proteins C. carbohydrates D. salts 23. Organic compounds in which molecules are made up of building blocks containing amino groups are classified as A. proteins B. carbohydrates C. lipids D. fatty acids 24. Select the compound, chosen from the list below, which is most closely associated with this statement: Some of these molecules are made from three fatty acids bonded to a molecule of glycerol. A. Lipids B. Proteins C. Vitamins D. Water 25. Which types of compounds are not classified as carbohydrates? A. lipids B. sugars C. starches D. polysaccharides A. polysaccharide B. protein C. fatty acid D. nucleic acid 27. The linking together of many molecules of glucose may produce a molecule of A. amino acid B. fatty acid C. starch D. hemoglobin 28. Which group of organic molecules includes glycogen and glucose? A. carbohydrates B. lipids C. nucleic acids D. proteins 29. Which organic molecule is correctly paired with an end product of its digestion? A. nucleic acid glycerol B. carbohydrate fatty acid C. protein amino acid D. lipid nucleotide 30. What class of substance is starch and glycogen? A. Nucleic acid B. Carbohydrate C. Protein D. Amino acid 31. Which molecules are not carbohydrates? A. simple sugars B. disaccharides C. polysaccharides D. hydrolytic enzymes page 4 Do Now Makeups
5 32. Organisms are composed of A. organic compounds, only B. inorganic compounds, only 35. Graph I shows the relationship between the relative rates of activity of enzymes A and B and temperature. Graph II shows the relationship between the relative rates of activity of enzymes A and B and ph. C. both organic and inorganic compounds D. neither organic nor inorganic compounds 33. Two examples of carbohydrates are A. fatty acids and glycerol B. fats and waxes C. sugars and starches D. amino acids and alcohol 34. Which is a characteristic of an enzyme? A. It is an inorganic catalyst. B. It is destroyed after each chemical reaction. C. It provides energy for any chemical reaction. D. It regulates the rate of a specific chemical reaction. Under which conditions is enzyme A most effective? A. at 40 C and a ph of 5 B. at 45 C and a ph of 5 C. at 45 C and a ph of 9 D. at 50 C and a ph of The optimum environment for enzyme B is A. a basic medium B. an acidic medium C. either an acidic or a basic medium D. a neutral medium page 5 Do Now Makeups
6 37. The substance represented by X is most likely C 6 H 12 O 6 + C 6 H 12 O 6 X C12 H 22 O 11 + H 2 O A. vitamin B B. maltase C. RNA D. DNA 38. The distortion (change in shape) of enzyme molecules which occurs at high temperatures is known as A. synthesis B. specificity C. replication D. denaturation 39. An enzyme-substrate complex may result from the interaction of molecules of A. glucose and lipase B. fat and amylase C. sucrose and maltase D. protein and protease 40. The substances that most directly control the rate of these reactions are known as A. enzyme molecules B. oxygen molecules C. neurotransmitters D. disaccharides page 6 Do Now Makeups
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