WHAT IS LIFE? ACHIEVE 1 TERM ACCESS CODE
5th Edition
ISBN: 9781319516116
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 24, Problem 7MC
Summary Introduction
Introduction:
Molecules fit into receptors located on sensory neurons on the tongue, like a piece of a puzzle.
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Students have asked these similar questions
Below are two amino acids at physiological pH. Number labels are for part c. Answer the following
questions about the side chains of these amino acids.
H
C.
H;N*
2 CH2
A
H
H3N*
C
3 CH2
В
4он
В
a. Which amino acid has a polar side chain?
b. Which amino acid is more soluble in water? B
c. Select the atom that serves as the hydrogen bond donor in the amino acid's R group.
Which of the following are differences
between fatty acid and glycerol? *
I
Fatty acid contains carboxyl group while glycerol contain three hydroxyl
groups.
II
Fatty acidmade up of small number of carbon atoms while glycerol made up
ofthree carbon atoms.
III
Fatty acidmade up oflarge number of carbon atoms while glycerol made up of
three carbon atoms.
O
I and II only
O I and III only
O II and II only
O , Il and IIl
Fats do not dissolve in water because
Select one:
a. There are no C-H bonds to form hydrogen bonds with water
b. There are no O-H bonds form hydrogen bonds with water
c. There are no C-C bonds to form hydrogen bonds with water
d. There are no C-H bonds for covalent bonds with water
e. There are no C-C bonds to form covalent bonds with water
Chapter 24 Solutions
WHAT IS LIFE? ACHIEVE 1 TERM ACCESS CODE
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Lipid molecules do not dissolve in water because all lipids are _______. Instead, lipid molecules attract other lipid molecules, forming tight clumps. When lipid molecules are stuck to a surface (such as hands or clothing), the lipid molecules stick to each other and the surface, and water will not wash them away. Fill in the blank: A. hydrophobic B. polypeptides C. acidicarrow_forwardObserve the structures of glucose and fructose in figure shown. These two molecules are H. H-C-OH Н—С—он C=0 но-с—н HO-C-H H-C-OH H-C-OH H-C-OH H-C-OH H-C-OH H-C-OH H H. glucose fructose A. geometric isotopes. B. enantiomers. C. stereoisomers. D. structural isomers.arrow_forwardWhich of the following is the characteristic that is common to all lipids?* A. They are made up of lots of double bonds B. They are acidic when mixed with water C. They are insoluble in water D. They do not have high energy contentarrow_forward
- A carboxyl group is symbolizeda. —OH.b. —NH2.c. —CH3.d. —CH2OH.e. —COOH.arrow_forwardLook at the structure of stearic acid as well as oleic acid and answer the following questions: a.Write which of these two is saturated fatty acid. b.Which of these two has a higher melting points. c.Which of these two will change the color of bromine water to clear. d.Name the unsaturated fatty acid using both delta and Omega nomenclature I can not separate the question, it is one question with four parts. I only need "D" answered, pleasearrow_forwardLipids are a. Many contain fatty acids in ester or amide linkage b. Most are simply polymers of isoprene c. Testosterone is an important sphingolipid found in myelin O A. All three statements are true. B. Two of the three statements are true. O c. Only one of the statements is true. D. None of the statements is true. дarrow_forward
- These lipids contain esters and undergo hydrolysis under basic conditions, EXCEPT:a. Waxesb. Triglyceridesc. Steroidsd. Sphingolip;idsarrow_forwardWhich of the following is incorrect about an omega-3 fatty acid whose hydrocarbon chain has only one double bond? a. It is a monounsaturated fatty acid O b. None; all the other choices are correct Its double bond is between C #3 and C # 4 from the carboxyl group Od. Its shape is not straight or linear C.arrow_forward.Amino acids a. have high dipole moments. b. are weak acids. c. with high molecular masses will be insoluble in water. d. are weak bases. Which statement is false?arrow_forward
- Saturated fatty acids are saturated because they are saturated with what component? A. double bonds В. С С. Нarrow_forwardWhich statement(s) correctly describe(s) protein structures?A. All hydrophobic residues are buried when protein structures and protein aggregatesB. Charged and polar amino acid residues are seldom buried in the protein interior C. Lysine is found only in the protein interiorD. Glycine is rarely found in proteins due to its destabilizing effect A,B,C A,C B B,C,Darrow_forwardThe diprotic amino acid proline is shown below as it would appear in a vacuum. The pKa of the alpha carboxyl group is 1.95 and the pKa of the alpha amino group is 10.64. HN- C C. HO, | | CH2 CH2 CH2 a. What is isoelectric point? (Round your answer to two decimal places, for example: 0.13 or 1.45 or 3.30). b. What is the average charge of the amino acid at a pH of 10? Please round your answer to the nearest two decimal places. (Please make sure to include + or - in front of your response. Even if the answer is positive you need to include a plus sign to indicate a positive charge. Please do not add a space between the + or - symbol and your numerical answer. For example: +0.13 or -1.45 or -3.30).arrow_forward
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