What is Life? A Guide to Biology with Physiology
3rd Edition
ISBN: 9781464157745
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 23, Problem 11MC
Summary Introduction
Introduction:
Molecules fit into receptors located on sensory neurons on the tongue, like a piece of a puzzle.
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A daring chemist opts to taste five unfamiliar chemical solutions to identify their properties. Presented below is a table detailing her findings.
taste 1 - bitter , taste 2 - sour, taste 3 - sweet, taste 4 - bitter, taste 5 - sweet
Based on this data, which of the following assertions is more probable?
a. Solutions #1 and #4 contain the same chemical
b. Solutions #3 and #5 contain the same chemical
c. Solution #2 likely has a high pH value
d. Solution #4 likely contains Na+ ions
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 23 Solutions
What is Life? A Guide to Biology with Physiology
Ch. 23 - Prob. 1SACh. 23 - Prob. 2SACh. 23 - Prob. 3SACh. 23 - Prob. 4SACh. 23 - Prob. 5SACh. 23 - Prob. 6SACh. 23 - Prob. 7SACh. 23 - Prob. 8SACh. 23 - Prob. 9SACh. 23 - Prob. 10SA
Ch. 23 - Prob. 11SACh. 23 - Prob. 12SACh. 23 - Prob. 13SACh. 23 - Prob. 14SACh. 23 - Prob. 15SACh. 23 - Prob. 16SACh. 23 - Prob. 17SACh. 23 - Prob. 18SACh. 23 - Prob. 19SACh. 23 - Prob. 20SACh. 23 - Prob. 1MCCh. 23 - Prob. 2MCCh. 23 - Prob. 3MCCh. 23 - Prob. 4MCCh. 23 - Prob. 5MCCh. 23 - Prob. 6MCCh. 23 - Prob. 7MCCh. 23 - Prob. 8MCCh. 23 - Prob. 9MCCh. 23 - Prob. 10MCCh. 23 - Prob. 11MCCh. 23 - Prob. 12MCCh. 23 - Prob. 13MCCh. 23 - Prob. 14MCCh. 23 - Prob. 15MCCh. 23 - Prob. 16MC
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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_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_forwardA carboxyl group is symbolizeda. —OH.b. —NH2.c. —CH3.d. —CH2OH.e. —COOH.arrow_forward
- Observe 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_forwardThe effect of pH on drug absorption 5. Many drugs are absorbed into the blood through cells lining the stomach, the small intestine, or other epithelial tissues. This process involves movement of the drug molecule across the plasma membrane by direct diffusion. Since the interior of the plasma membrane is hydrophobic, the uncharged molecules cross the membrane faster than charged (ionized) molecules. If a drug contains an ionizable group, its absorption will therefore be dependent on the pH. Consider the absorption of the ionizable drug, morphine, shown below in its uncharged form. We will only focus on the ionization of the amino group of morphine (pKa = 8.2). НО, H HO.. N-CH3 morphine (neutral) morphine (charged)arrow_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
- (v) State one way A and B is each adapted for its functions. (b) The diagrams below labelled X and Y shows the structure of two molecules. Study the diagrams below carefully and answer the questions that follow H₂ 心 Na Cl H H X i. Identify the molecules labelled X and Y. [2 marks] ii. Name the atoms that form each of the molecule labelled x and Y. iii. Name the interatomic bond between the molecules of X and Y. iv. Describe how the interatomic bonds in X are formed. v. Describe how the interatomic bonds in Y are formed. [2 marks]arrow_forwardSaturated fatty acids are saturated because they are saturated with what component? A. double bonds В. С С. Нarrow_forwarda. What charge of O2 would produce an ion with a bond order of 2.5? b. Of F2, B2, O2, and N2 how many are paramagnetic? c. Of F2, B2, O2, and N2 how many increase in bond length when an electron is removed? d. Arrange these from strongest to weakest bond: B2, C2, N2 π* Π b 9 σ strongest O, F, Ne བུ π* π b σ* σ weakest B, C, Narrow_forward
- Which 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_forwardFor no. 1–2, refer to the figure below. 1. Which part of the fatty acid will likely interact with water? A. 1 B. 2 C. Both 1 and 2 D. Either 1 or 2 2. Which part of the fatty acid will likely interact with hexane? A. 1 B. 2 C. Both 1 and 2 D. Either 1 or 2arrow_forwardThese lipids contain esters and undergo hydrolysis under basic conditions, EXCEPT:a. Waxesb. Triglyceridesc. Steroidsd. Sphingolip;idsarrow_forward
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