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Unformatted text preview: e E) liposaccharide Answer: C Topic: 3.11 Skill: Conceptual Understanding 46) Structural proteins A) include receptor molecules. B) respond to environmental changes. C) include hemoglobin. D) anchor cell parts. E) bond to hormones. Answer: D Topic: 3.11 Skill: Application 47) A scientist suspects that the food in an ecosystem may have been contaminated with radioactive nitrogen over a period of months. Which of the following substances could be examined for radioactivity to test the hypothesis? A) the cell walls of plants growing in the ecosystem B) the hair produced by humans living in the ecosystem C) the sugars produced during photosynthesis by plants growing in the ecosystem D) the cholesterol in the cell membranes of organisms living in the ecosystem E) the adipose tissue from animals living in the ecosystem Answer: B Topic: 3.11; 3.12 11 Skill: Application 48) Amino acids can be distinguished from one another by A) the number of R groups found on the amino acid molecules. B) the chemical properties of their R groups. C) the type of bond between the R group and the rest of the amino acid molecule. D) the chemical properties of their amino and carboxyl groups. E) the number of alpha carbons present in the amino acid molecules Answer: B Topic: 3.12 Skill: Factual Recall 49) Proteins differ from one another because A) the peptide bonds linking amino acids differ from protein to protein. B) the sequence of amino acids in the polypeptide chain differs from protein to protein. C) each protein contains its own unique sequence of sugar molecules. D) the number of nucleotides found in each protein varies from molecule to molecule. E) the number of nitrogen atoms in each amino acid varies. Answer: B Topic: 3.12 Skill: Conceptual Understanding 50) Glucose molecules are to starch as ________ are to proteins. A) oils B) amino acids C) fatty acids D) monosaccharides E) lards Answer: B Topic: 3.12 Skill: Conceptual Understanding 51) Peptide bonds A) are used to form amino acids. B) form between fatty acids. C) are formed by a...
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This note was uploaded on 10/31/2012 for the course ENGI 1010 taught by Professor Dr.robert during the Fall '12 term at Dalhousie.
- Fall '12