WHAT IS LIFE? ACHIEVE ACCESS 1 TERM
5th Edition
ISBN: 9781319360702
Author: PHELAN
Publisher: INTER MAC
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Chapter 3, Problem 6MC
Summary Introduction
Introduction:
Degrees of saturation refer to the presence of double bonds in the fatty acid.
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Select the correct statement about unsaturated fatty acids:
1. Unsaturated fatty acids have extra nitrogen atoms in their hydrophobic tails compared to saturated fatty acids
2. Unsaturated fatty acids have multiply bonded carbons in their hydrophobic tails compared to saturated fatty acids which have only single bonded carbons
3. Unsaturated fatty acids have no bends in their hydrophilic fatty acid tails
4. Unsaturated fatty acids have relatively more hydrogen atoms in their hydrophobic tails compared to saturated fatty acids
All of the following are examples of
monounsaturated fatty acids except
A. Palmitoleic acid
B. Oleic acid
C. Elaidic acid
D. Linoleic acid
A fatty acid is unsaturated if ita. contains hydrogen.b. contains carbon–carbon double bonds.c. contains a carboxyl (acidic) group.d. is bound to a glycerol.
Chapter 3 Solutions
WHAT IS LIFE? ACHIEVE ACCESS 1 TERM
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- Monounsaturated fatty acids have a single double bond. Polyunsaturated fatty acids have multiple double bonds. Which of the following statements is true? O A. Monounsaturated fatty acids store more energy than polyunsaturated fatty acids. B. Polyunsaturated fatty acids store more energy than monounsaturated fatty acids. C. Polyunsaturated fats have a lower melting point than monounsaturated fatty acids. D. Monounsaturated fats have a lower melting point than polyunsaturated fatty acids. ered MacBook Air 딤O F3 000 F1 O00 F4 F5 F6 F7 F2 $ %arrow_forwarda. Write one example each of a saturated fatty acid and its occurrence in nature (what plant or animal) b. An example of a Mono unsaturated fatty acid and occurrence of this fatty acid in nature (what plant or animal) c. an example of a polyunsaturated fatty acid and its occurrence in nature (what plant or animal)arrow_forwardRank the following fatty acids from lowest melting temperature to highest melting temperature. A -0-c B-0-c -0-2 D-0-84 OBarrow_forwardWhich of the following statements concerning fatty acids is correct? a. Used to make phospholipids b. They all contain one or more double bonds. c. They are a constituent of sterols. d. They are strongly hydrophilic.arrow_forwardWhich of the following about glycerophospholipids and sphingolipids is incorrect? Select one: A. Both glycerophospholipids and sphingolipids are used as component of cell membrane. OB. Glycerophospholipids have two fatty acids connected to a glycerol backbone with a phosphate polar head group. * C. Both glycerophospholipids and sphingolipids contain at least one fatty acid. D. Sphingolipids have a sphingosine backbone in which a fatty acid can be attached to C1 and a sugar can be attached to C2. E. Ceramides are the precursors of all sphingolipids.arrow_forwardAn illustration of a simple triacylglycerol is given. Choose which type of fatty acid is described by each of the given phrase Choices: A, B, C (Refer to picture) 1. a hydrocarbon chain that bends once 2. a polyunsaturated fatty acid chain 3. cannot be saturated by vitamins 4. absorbs the highest number of iodine 5. can be completely saturated by an I2 moleculearrow_forwardThe following are essential fatty acids, EXCEPT: OA. oleic acid B. linoleic acid O c. linolenic acid O D. arachidonic acidarrow_forward1. a. How will you classify Lipids? Differentiate the Simple, Compound and Derived lipids. b. Write down the details about structure and functions of fatty acids.arrow_forwardMatch the following descriptions with the correct lipid-based compounds: Cholesterol Sphingolipids Phosphoacylgycerol Glycerophospholipids Fatty acyls…arrow_forwardExamine the following shorthand nomenclature of the fatty acids: Lipid A: 20:n-3 Lipid B: 20:2n-3 Lipid C: 20:3n-3 Explain how the double bonds affect the melting point of Lipid A, B and C.arrow_forwardof the following is incorrect about the sphingolipids? a. The backbone is sphingosine which has an amine group to which a fatty acid can be attac ▸ b. The sphingophospholipids have a phosphate group with an alcohol attached c. They are components of membranes Od. The cerebrosides have oligosaccharides as head groupsarrow_forwardIn each of the following pairs of fatty acids, select the fatty acid that has the lower melting point. a. 14:0 and 18:0 b. 20:4(delta 5,8,11,14) and 18:3(delta 9,12,15) c. 18:3(delta 9,12,15) and 16:0 d. 18:1(delta 9) and 20:1(delta 5)arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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