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Download Test #4: Biomolecule Foldable
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Test #4: Biomolecule Foldable Some questions (c) 2015 by Region 10 Educational Service Center. Some questions (c) 2015 by TEKS Resource System. Page 2 GO ON 1 Which of these best represents a fatty-acid molecule? A B C D 2 Which of these substances stores the most energy? 3 F one gram of alcohol Which biomolecule's function is least likely to be affected by the order of its single-molecule units? G one gram of carbohydrate A DNA H one gram of fat B starch J C one gram of protein RNA D protein Page 3 GO ON 4 A biomolecule that is a large, complex set of chains composed of alternating subunits called nucleotides has which of these functions in the cell? F storing energy G catalyzing cellular reactions 6 Many land plants store energy in starch. When energy is needed, the starch molecules can be broken down quickly. This chemical reaction produces which of the following? F amino acids H building tissue G lipids J H monosaccharides storing genetic information J 5 The enzymes that catalyze cellular reactions are macromolecules made of organic compounds composed of carbon, hydrogen, oxygen, and nitrogen. These types of macromolecules are known as – 7 RNA chains What monomer is represented by this diagram? A carbohydrates B lipids C proteins D nucleic acids A monosaccharide B nucleotide C glycerol D amino acid Page 4 GO ON 8 A student preparing for a hike wants to pack a snack that has biomolecules that provide quickly available energy but few excess calories. Which nutrition label lists the best combination of biomolecules that provide quickly available energy while providing the fewest calories from other types of biomolecules? F G H Page 5 GO ON J Page 6 GO ON 9 Proteins and polysaccharides are polymers. These polymers are formed by dehydration synthesis. Which statement correctly identifies a difference in the structure of proteins and polysaccharides? A Only polysaccharides are comprised of repeating units of cytosine, adenine, guanine, and thymine. B Only proteins are formed from amino acids joined by peptide bonds. C Only polysaccharides can be folded and twisted to very specific shapes. D Only proteins can be large molecules with thousands of subunits. 10 Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not waterpermeable. This waxy coating is which of the following types of organic molecule? F carbohydrate G lipid 11 Which of the following elements are common to all biomolecules? I. Carbon II. Nitrogen III. Hydrogen IV. Potassium A I, III H nucleic acid B II, IV J protein C I, II, III D I, II, III, IV Page 7 GO ON 12 Which of the following molecules is formed from a product of photosynthesis? F G H J Page 8 BE SURE YOU HAVE RECORDED ALL OF YOUR ANSWERS ON YOUR ANSWER DOCUMENT STOP