Loose-leaf Version for What Is Life? A Guide to Biology 4E & LaunchPad for What is Life? A Guide to Biology 4E (Twelve Month Access)
4th Edition
ISBN: 9781319154639
Author: Jay Phelan
Publisher: W.H. Freeman & Co
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Question
Chapter 3, Problem 5MC
Summary Introduction
Introduction:
Fats are of two types – saturated and unsaturated.
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Which 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.
Which 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.
Which of the following statements is true regarding cellulose?
Select one:
A. It is a primary structural component of plant cell walls.
B. It is digestible by bacteria in the human gut.
C. It is a polymer of glucose joined by α glycosidic linkages.
D. It is a polymer composed of enantiomers of glucose.
E. It is a storage polysaccharide for energy in plant cells.
Chapter 3 Solutions
Loose-leaf Version for What Is Life? A Guide to Biology 4E & LaunchPad for What is Life? A Guide to Biology 4E (Twelve Month Access)
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- Which of the following statements concerning glycolipids is true? a. All glycolipids contain sphingosine. b. All glycolipids contain one sugar residue. c. All glycolipids contain phosphatidylglycerol. d. Some glycolipids contain ceramide, while others do not.arrow_forwardipids that are liquid at room temperature:a. are fats.b. contain more hydrogen atoms than lipids that are solids at room temperature.c. if polyunsaturated, contain several double bonds in their fatty acid chains.d. lack glycerol.e. are not stored in cells as triglycerides.arrow_forwardWhich of the following statements about saturated fats is true? a. Saturated fats contain one or more double bonds along the tails. b. Saturated fats contain the maximum number of hydrogens along the tails. c. Saturated fats make up the majority of most plant oils. d. Saturated fats are typically healthier for you than unsaturated fats.arrow_forward
- Which of the following statements about amino acids is true? A. Twenty two amino acids are commonly found in proteins. B. Amino acids are often linked together to form branched polymers. C. All amino acids contain an NH2 and a COOH group. D. Most of the amino acids used in protein biosynthesis have charged side chains.arrow_forwardWhich of the following pairs of amino acids stabilizes a fold in a polypeptide chain through ionic interaction at physiological pH? A. cysteine and cysteine B. phenylalanine and valine C. glutamate and lysine D. serine and threoninearrow_forwardWhich of the following statements best describes glucose? a. It is an aldohexose. b. It is produced from dietary starch by the action of α-amylase. c. It is utilized in biological systems only in the L-isomeric form. d. It is a disaccharide.arrow_forward
- The building blocks of nucleic acids are a. amino acids. b. fatty acids. c. monosaccharides. d. nucleotides. e. lipids.arrow_forwardIndicate whether each of the following descriptions concerning the molecule sphingosine is true or false. a. Carbons 1, 2, and 3 all bear the same kind of functional group. b. Three different kinds of functional groups are present. c. It is an unsaturated diaminoalcohol. d. The carbon chain contains 20 carbon atoms.arrow_forwardDesferal (Desferrioxamine B) is a drug given to thalassaemic patients who are being treated by blood transfusion and who suffer from iron overload. Desferal contains which of the following iron binding groups: Select one: a. Carboxylic acids. b. Hydroxamates. c. Carboxylates. d. Hydroxamic acids. e. A mixture of carboxylates and hydroxamates. ----- is it hydroxamates or hydroxamic acids?? and what is the difference between them?arrow_forward
- All of the following are examples of monounsaturated fatty acids except A. Palmitoleic acid B. Oleic acid C. Elaidic acid D. Linoleic acidarrow_forwardWhich of the following is/are NOT (an) essential fatty acids? A. arachidonic acid B. linoleic acid C. palmitic D. oleic acidarrow_forwardWhich 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.arrow_forward
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