WHAT IS LIFE? LAUNCHPAD 12 MO. SUB.
4th Edition
ISBN: 9781319106348
Author: PHELAN
Publisher: Macmillan Higher Education
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Chapter 23, Problem 3MC
Summary Introduction
Introduction:
Fibers are complex sugars.
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Mark the following statements as true or false. If a statement is false, correct it to make a true statement. a. Carbohydrates are the main source of fuel for the human body. b. The main storage form of glucose in the human body is starch. c. Lipids contain oxygen and are therefore polar covalent molecules. d. Steroids, phospholipids, and triglycerides are all types of lipids. e. Proteins are composed of strings of fatty acids linked by glycosidic bonds. f. Amino acids have a carboxylic group on one end and an amino group on their other end.
Identify which lipids are important components of the cellular membrane. SELECT ALL THAT APPLY
A. Phospholipids
B. Bile Salts
C. Fatty Acids
D. Cholesterol
Which of the following is a drawback of using base hydrolysis during amino acid composition?
A. Protonation of basic amino acids.
B. Dissociation of acidic amino acids.
C. Denaturation of the protein.
D. Racemization of certain amino acids.
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WHAT IS LIFE? LAUNCHPAD 12 MO. SUB.
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- Which of the following is not a function of a protein? A. Support B. Transport C. Metabolic regulation D. Storage of genetic information E. Movementarrow_forwardWhich of the following statements is false? a. Fiber is a polysaccharide that is completely or partially indigestible by the human body. b. A complete protein contains all of the essential amino acids. c. Saturated fats contain hydrogen atoms arranged on opposite sides of the carbon-carbon double bond. d. Linoleic and linolenic acid are essential fatty acidarrow_forwardWhich of the following statements concerning palmitic acid is INCORRECT? a. It can barely be dissolved in water. b. It is an unsaturated fatty acid. c. It is consisted of 16 carbons. d. It is a lipid.arrow_forward
- Which of the following is NOT a function of one or more types of protein? A. Transport B. Enzymes C. Storing genetic information D. Hormonesarrow_forwardDefine the following terms:a. lipid bilayerb. polar head groupc. hydrocarbon taild. integral proteine. peripheral proteinarrow_forwardWhich of the following is false statement? a. alpha-Keratin is alpha helical b. alpha-Keratin is beta pleated structure c. Collagen is alpha helical d. Hemoglobin has a quaternary structure e. Two of the choices are correctarrow_forward
- Which of the following polysaccharides is a component of the extracellular matrix and connective tissue? a. glycogen b. hyaluronic acid c. chitin d. cellulosearrow_forwardMatch the level of protein structure to its description: Primary Secondary Tertiary Quaternary A. Folding due to interactions among the peptide backbone B. Interactions among multiple polypeptide chains C. Sequence of amino acids D. Folding due to interactions among side chainsarrow_forwardProteins are the dominant structural and functional molecules in a cell. Which one of the following statements about proteins is NOT correct? A. The native conformation of a protein is usually arrived at very quickly after synthesis. B. Hydrogen bonding is the only type of bonding that gives rise to secondary structure. C. Urea denatures proteins by disrupting the interactions among non-polar (hydrophobic) amino acids D. Most proteins consist of a single polypeptide and thus do not have quaternary structure.arrow_forward
- How many of the following apply to fibrous proteins? I. Provide structural integrity and strength for many types of tissues. II. Transport and store oxygen and nutrients. III. Act as catalysts. IV. Are the main components of muscle, hair, and cartilage. V. Fight invasion of the body by foreign objects.arrow_forwardWhich of the following glycoproteins compose the ECM? Select one: a. fibronectin b. All of the answers are correct. c. elastin d. collagenarrow_forwardCorrectly match each item below to the corresponding nucleic acid(s). 1. Contains Deoxyribose Sugar 2. Contains phosphate groups 3. May contain Uracil 4. Found in the cell nucleus 5. Contains phosphodiester bonds 6. Only contains purines A. DNA B. RNA C. BOTH DNA & RNA D. NEITHER DNA or RNAarrow_forward
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