Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 7, Problem 1TYK
If a single layer of phospholipids coats the water in a beaker, which parts of the molecules face the air?
- a. the phosphate groups
- b. the hydrocarbon tails
- c. both the heads and the tails because the molecules are amphipathic and lie sideways
- d. The molecules are arranged randomly, with no clear orientation.
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Chapter 7 Solutions
Study Guide for Campbell Biology
Ch. 7 - Label the components in the following diagram of a...Ch. 7 - a. Cite some experimental evidence that indicates...Ch. 7 - List the six major functions that membrane...Ch. 7 - What types of molecules have difficulty crossing...Ch. 7 - A solution of 1 M glucose is separated by a...Ch. 7 - a. What osmotic problems does the freshwater...Ch. 7 - Prob. 7IQCh. 7 - Prob. 8IQCh. 7 - a. How is cholesterol transported into human...Ch. 7 - Create a concept map to illustrate your...
Ch. 7 - The following diagram illustrates passive and...Ch. 7 - If a single layer of phospholipids coats the water...Ch. 7 - Glycoproteins and glycolipids are important for a....Ch. 7 - Prob. 3TYKCh. 7 - Prob. 4TYKCh. 7 - Prob. 5TYKCh. 7 - Use the following U-tube setup to answer questions...Ch. 7 - Use the following U-tube setup to answer questions...Ch. 7 - Use the following U-tube setup to answer questions...Ch. 7 - How much work is expended in diffusion? a. an...Ch. 7 - Prob. 10TYKCh. 7 - Prob. 11TYKCh. 7 - Water passes quickly through cell membranes...Ch. 7 - Facilitated diffusion of ions across a cellular...Ch. 7 - Prob. 14TYKCh. 7 - Which of the following describes cotransport? a....Ch. 7 - Prob. 16TYKCh. 7 - An animal cell moves potassium against its...Ch. 7 - Prob. 18TYKCh. 7 - Prob. 19TYKCh. 7 - In response to low blood pressure, the adrenal...
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- which statement about phospholipids is false? a. they are hydrophobic at one end b. they are hydrophilic at one end c. they are used as organisms main form of long-term energy storage d. they are a major constituent of cell membranesarrow_forwardWhich monomers and types of bond are found in both glycogen and amylopectin? A. a-glucose, hydrogen, 1,4 B. B-glucose, glycosidic, 1,4 C. a-glucose, glycosidic, 1,6 D. B-glucose, hydrogen, 1,6arrow_forwardDigitoxin, the molecule used to treat congestive heart failure, is what type of molecule? a. mixed terpenoid b. phosphlipid c. steroid glycoside d. glycolipidarrow_forward
- What is the difference between cellobiose & cellulose? A. Cellulose is a starch molecule, cellobiose is a glycogen molecule B. Cellulose is a straight chain of β-glucose however cellobiose is two β-glucose C. Cellulose has α-glucose but cellobiose has β-glucose D. Cellobiose can be a straight chain or branched but cellulose is a ringarrow_forwardHow is the structure of saturated fats different from that of unsaturated fats? A. All of the carbons in the hydrocarbon tails of saturated fats are bonded to one another with double bonds. B. Saturated fats have three hydrocarbon tails bonded to the glycerol molecule instead of just two. C. The hydrocarbon tails in a saturated fat have the maximum number of hydrogens possible. D. Saturated fats have no oxygens present. What are the primary functions of carbohydrates in cells? A. Energy storage, cell identity, structure, and building blocks for synthesis. B. Catalysis, structure, and energy storage. C. Different orientation of a hydroxyl in the ring form. D. Different position of the carbonyl group in the linear form. A positive test for starch would give the following colors: A. Dark blue, black, or purple B. Red, yellow, orange-red, green C. Bright Purple D. Purely Bluearrow_forwardSphingolipids differ from phosphoglycerides because?A. sphingolipids never have the phosphodiester linkage found in phosphoglycerides.B. sphingolipids utilize sphingosine to replace the glycerol backbone and one of the two fatty acyl tail found in phosphoglycerides.C. sphingolipids are the only lipids in lipids rafts.D. sphingolipids never contain sugar groups.arrow_forward
- A steroid is a lipid particle that contain rings. A. Three fused B. Four fused C. Four open D. Three openarrow_forwardExplain how these polymers are digested and how the products of digestion are used in the human body. a. Starch b. Triglyceridearrow_forwardWhy are phospholipids the main lipid component of membranes? A. these molecules can interact with each other B. these molecules contain hydrophilic groups that interact with water C. these molecules are nonpolar D. these molecules are able to interact with water while preventing continuous movements of metabolites to and from the environment E. these molecules are fluid and dynamic.arrow_forward
- The product formed in the isomerization of mannose 6-phosphate? O a. 3-phosphoglycerate O b. 2-phosphoglycerate c. Fructose 6-phosphate O d. Glucose 6-phosphatearrow_forwardWhat is the role of methanol for extracting chlorophyll? a. absorbs water b. dissolves the nonpolar substance in mixture c. dissolves the polar substance in the mixture d. increases solubility of the polar component e. decreases solubility of the nonpolar componentarrow_forwardin dehydration reaction between phosphate (derived from phosphoric acid) and glycerol (a sugar alcohol) accompanied with the removal of a water molecule, what chemical bond holds them together in a phospholipid molecule? A. Ether Alcohol B. Thioester Bond C. Acid Anhydride/Phosphoanydride bond D. Ester Bondarrow_forward
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