Loose-leaf Version for What is Life? A Guide to Biology 3e & LaunchPad for Phelan's What is Life? (Six Month Access) 3e
3rd Edition
ISBN: 9781319022471
Author: Jay Phelan
Publisher: W.H. Freeman & Co
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Chapter 2, Problem 12MC
Summary Introduction
Introduction:
In the chemistry of organic molecules like fats, unsaturation refers to a lack of hydrogen atoms and the presence of double bonds.
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Myristic, lauric and palmitic acids are fatty acids of, respectively:
A) 13, 14, 15 carbons
B) 12, 14, 16 carbons
C) 14, 18, 20 carbons
D) 14, 12, 16 carbons
E) 16, 14, 12 carbons
Which of the following fatty acids is most likely to be a solid at room temperature?
A)
B)
C)
D)
E)
شد
OH
OH
OH
In which of the following, glucose residues are linked by B1 &arr; 4
glycosidic bonds?
a) Starch
b) Cellulose
c) Glycogen
d) Amylose
Chapter 2 Solutions
Loose-leaf Version for What is Life? A Guide to Biology 3e & LaunchPad for Phelan's What is Life? (Six Month Access) 3e
Ch. 2 - Prob. 1SACh. 2 - Prob. 2SACh. 2 - Prob. 3SACh. 2 - Prob. 4SACh. 2 - Prob. 5SACh. 2 - Prob. 6SACh. 2 - Prob. 7SACh. 2 - Prob. 8SACh. 2 - Prob. 9SACh. 2 - Prob. 10SA
Ch. 2 - Prob. 11SACh. 2 - Prob. 12SACh. 2 - Prob. 13SACh. 2 - Prob. 14SACh. 2 - Prob. 15SACh. 2 - Prob. 16SACh. 2 - Prob. 17SACh. 2 - Prob. 18SACh. 2 - Prob. 19SACh. 2 - Prob. 20SACh. 2 - Prob. 1MCCh. 2 - Prob. 2MCCh. 2 - Prob. 3MCCh. 2 - Prob. 4MCCh. 2 - Prob. 5MCCh. 2 - Prob. 6MCCh. 2 - Prob. 7MCCh. 2 - Prob. 8MCCh. 2 - Prob. 9MCCh. 2 - Prob. 10MCCh. 2 - Prob. 11MCCh. 2 - Prob. 12MCCh. 2 - Prob. 13MCCh. 2 - Prob. 14MCCh. 2 - Prob. 15MCCh. 2 - Prob. 16MCCh. 2 - Prob. 17MCCh. 2 - Prob. 18MCCh. 2 - Prob. 19MC
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- A fatty acid designated as 20:0 is ________, while one that is designated 20:3 D5,8,11 is ________.A) simple; complexB) complex; simpleC) saturated; unsaturatedD) unsaturated; saturatedE) monounsaturated; polyunsaturatedarrow_forwardWhich of the following membrane lipids have a direct glycosidic linkage between the head-group sugar and the backbone glycerol? a) Ether lipids b) Sphingolipids c) Glycolipids d) Phospholipidsarrow_forwardWhich of the following is true of the molecule pictured below? A) It will spontaneously form into biological membranes. B) It would be liquid at room temperature because it contains unsaturated fatty acids. C) It would be solid at room temperature because it contains only saturated fatty acids. D) It would be liquid at room temperature because it contains only saturated fatty acids. E) It would be solid at room temperature because it contains unsaturated fatty acids.arrow_forward
- Which of the following membrane lipids have a direct glycosidic linkage between the head-group sugar and the backbone glycerol?a) Glycolipidsb) Phospholipidsc) Sphingolipidsd) Ether lipidsarrow_forwardWhich of following functional groups are present on this molecule: a) aldehyde b) ketone c) carboxylic acid d) both a and c e) a, b and c O OHarrow_forwardWhich of the following type structure contains all the three glycosphingolipids?a) B structureb) A structurec) O structured) AB structurearrow_forward
- ___ fatty acid chain length, as well as ___ the number of double bonds has the effect of increasing the fluidity of phospholipids that contain them. a) Increasing; decreasing b) Decreasing; decreasing c) Increasing; increasing d) Decreasing; increasingarrow_forwardA fatty acid designated w-3A) has three double bonds.B) is saturated.C) has a double bond three carbons from the end of the chain.D) has a double bond three carbons from the a-carbon.arrow_forward1. Which one of the following is NOT an important functional group or linkage in biomolecules? A) Phosphodiester B) Hemiketal C) Thiol D) Lipid E) Phosphoanhydridearrow_forward
- Although the first two carbons of fructose and glucose are identical in structure to DHAP and GADP (from glycolysis), DHAP and GADP equilibriate on their in solution to favor the ketone over the aldehyde, while fructose and glucose do not. Why? a)The larger size of the molecule sterically hinders the isomerization b)The larger sugars have more OH groups which hydrogen bond and disrupt isomerization c)The larger sugars cyclize, and there is no carbonyl to isomerize in the cyclic form d)The larger sugars cyclize, and in the cyclic form the hydrogen bonding is very strong e)The larger sugars are less soluble in water than the smaller sugarsarrow_forwardA polysaccharide of glucose, such as starch or glycogen, is formed when the hydroxyl functional group of a glucose molecule is covalently bonded to which other functional group on glucose to form an ether linkage? a) amino b) ester c) methylene d.) carboxyl e) hydroxylarrow_forwardCarbons is used in cells for a) forming the charge across the membrane by serving a positive cations b) as the structural backbone of most molecules c) forming the second most common element D) none of thesearrow_forward
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