Introduction to General, Organic and Biochemistry
12th Edition
ISBN: 9780357119303
Author: Bettelheim, Frederick A., Brown, William H., Campbell, Mary K., FARRELL, Shawn O., Torres, Omar
Publisher: Cengage Learning
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Question
Chapter 20, Problem 34P
Interpretation Introduction
(a)
Interpretation:
All the carbon stereoisomers in a cholesterol molecule needs to be identified.
Concept Introduction:
A stereocenter is a carbon atom that is bonded to four different groups. It is also called a chiral carbon atom.
Interpretation Introduction
(b)
Interpretation:
The number of possible stereoisomers should be determined.
Concept Introduction:
A stereocenter is a carbon atom that is bonded to four different groups. It is also called a chiral carbon atom. If there are n stereocenters in a compound the number of stereoisomers can be calculated using the formula: 2n.
Interpretation Introduction
(c)
Interpretation:
The number of the stereoisomers of cholesterol present in the nature should be determined.
Concept Introduction:
A stereocenter is a carbon atom that is bonded to four different groups. It is also called a chiral carbon atom. If there are n stereocenters in a compound the number of stereoisomers can be calculated using the formula: 2n.
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Students have asked these similar questions
Q3: Use arrows to match the terms (A) column with (B) column. Some
may be used more than once and others not at all.
B
a- contain glycerol backbone
b- glucose
é- amino acids
d- esters of fatty acids
e- octapeptide
f- disaccharide
6- Proteins
g- polysaccharide
k- compound lipids
i- steroid-like
j- lipids
k- polar lipids
+ glucose storage in animals
7- Cholesterol
8- Lactose
9- Waxes
10AngiotensinlI
((T.O.P)) ((1-2))
The structural formula for the open-chain form of galactose is
CH
Н—ҫ—ОН
Но—С—н
НО—С—Н
Н—ҫ—ОН
CH-ОН
(a) Is this molecule a sugar? (b) How many chiral carbons
are present in the molecule? (C) Draw the structure of the
six-member-ring form of this molecule.
Indicate whether each statement is true or false: (a)Disaccharides are a type of carbohydrate. (b) Sucrose is amonosaccharide. (c) All carbohydrates have the formulaCnH2mOm.
Chapter 20 Solutions
Introduction to General, Organic and Biochemistry
Ch. 20.2 - Prob. 20.1QCCh. 20.4 - Prob. 20.2QCCh. 20.5 - Prob. 20.3QCCh. 20.7 - Prob. 20.4QCCh. 20.8 - Prob. 20.5QCCh. 20.9 - Prob. 20.6QCCh. 20.10 - Prob. 20.7QCCh. 20.13 - Prob. 20.8QCCh. 20 - Prob. 1PCh. 20 - 21-2 Why are fats a good source of energy for...
Ch. 20 - 21-3 Proteins, nucleic acids, and carbohydrates...Ch. 20 - Prob. 4PCh. 20 - Prob. 5PCh. 20 - Draw the line-angle structure for the following:...Ch. 20 - Prob. 7PCh. 20 - What is the difference between the -system and...Ch. 20 - Prob. 9PCh. 20 - Prob. 10PCh. 20 - Prob. 11PCh. 20 - Prob. 12PCh. 20 - For the diglycerides in Problem 12 , predict which...Ch. 20 - 21-8 Predict which acid in each pair has the...Ch. 20 - Prob. 15PCh. 20 - Prob. 16PCh. 20 - Prob. 17PCh. 20 - Prob. 18PCh. 20 - 21-13 Rank the following in order of increasing...Ch. 20 - Prob. 20PCh. 20 - Prob. 21PCh. 20 - Prob. 22PCh. 20 - Prob. 23PCh. 20 - Prob. 24PCh. 20 - Prob. 25PCh. 20 - Prob. 26PCh. 20 - Prob. 27PCh. 20 - Prob. 28PCh. 20 - 21-29 Name all the groups of complex lipids that...Ch. 20 - Prob. 30PCh. 20 - Prob. 31PCh. 20 - Prob. 32PCh. 20 - Prob. 33PCh. 20 - Prob. 34PCh. 20 - Prob. 35PCh. 20 - Prob. 36PCh. 20 - Prob. 37PCh. 20 - Prob. 38PCh. 20 - 21-39 How does VLDL become LDL?Ch. 20 - Prob. 40PCh. 20 - Prob. 41PCh. 20 - Prob. 42PCh. 20 - Prob. 43PCh. 20 - 21-44 Describe the difference in structure between...Ch. 20 - Prob. 45PCh. 20 - Prob. 46PCh. 20 - Prob. 47PCh. 20 - 21-48 List all of the functional groups that make...Ch. 20 - 21-49 Explain how the constant elimination of bile...Ch. 20 - Prob. 50PCh. 20 - Prob. 51PCh. 20 - 21-52 What are the chemical and physiological...Ch. 20 - 21-53 How does aspirin, an anti-inflammatory drug,...Ch. 20 - Prob. 54PCh. 20 - Prob. 55PCh. 20 - For each of the processes below, tell whether it...Ch. 20 - Prob. 57PCh. 20 - Prob. 58PCh. 20 - Prob. 59PCh. 20 - Prob. 60PCh. 20 - Prob. 61PCh. 20 - Prob. 62PCh. 20 - Prob. 63PCh. 20 - Prob. 64PCh. 20 - Prob. 65PCh. 20 - Prob. 66PCh. 20 - Prob. 67PCh. 20 - Prob. 68PCh. 20 - Prob. 69PCh. 20 - 21-68 What is the role of taurine in lipid...Ch. 20 - Prob. 71PCh. 20 - 21-70 How many different triglycerides can you...Ch. 20 - Prob. 73PCh. 20 - Prob. 74PCh. 20 - Prob. 75PCh. 20 - Prob. 76PCh. 20 - Prob. 77PCh. 20 - 21-76 Which part of LDL interacts with the LDL...Ch. 20 - Prob. 79PCh. 20 - Prob. 80PCh. 20 - Prob. 81PCh. 20 - Prob. 82PCh. 20 - Prob. 83PCh. 20 - 21-82 Suggest a reason why the same protein system...Ch. 20 - Prob. 85PCh. 20 - Prob. 86PCh. 20 - 21-85 Which of the following statements is (are)...Ch. 20 - Prob. 88PCh. 20 - 21-87 Which statements are consistent with the...Ch. 20 - Prob. 90PCh. 20 - Prob. 91PCh. 20 - 21-90 To what extent do lipids and carbohydrates...Ch. 20 - Prob. 93PCh. 20 - Prob. 94PCh. 20 - Prob. 95PCh. 20 - Prob. 96PCh. 20 - Prob. 97PCh. 20 - Prob. 98PCh. 20 - Prob. 99PCh. 20 - Prob. 100PCh. 20 - Prob. 101PCh. 20 - 21-100 What are the functions of a cell membrane?...Ch. 20 - 21-101 Glycerophospholipids tend to have both a...Ch. 20 - Prob. 104P
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- 21-90 To what extent do lipids and carbohydrates play structural roles in living organisms? Do these roles differ in plants and in animals?arrow_forward21-101 Glycerophospholipids tend to have both a positive charge and a negative charge in their hydrophilic portions. Does this fact help or hinder lipid packing in membranes? Explain.arrow_forward22-53 Do iron and zinc ions play role in protein structure? If so, what is the role for either or both?arrow_forward
- Cortisone is a compound that is used as an anti-inflammatory drug to treat 2) diseases like arthritis. Cortisone is a steroid which contains four rings (A, B, C and D), and has the following structure: он "OH Cortisone Provide the data to complete each of the following statements: The total number of chiral carbons (stereocentres) in Cortisone is The maximum number of stereoisomers possible is: The degree of unsaturation (IHD) of Cortisone is The total number of 2° hydrogens is The ring fusion between rings B and C is trans or cis? The absolute configuration of the carbon with * in the structure is The total number of n bonds isarrow_forwardQ3: Use arrows to match the terms (A) column with (B) column. Some may be used more than once and others not at all. 1- Tirglyceride 2- Glycogen 3- Sphingomyelins 4- Membranes 5- Starch 6- Proteins 7- Cholesterol 8- Lactose B a- contain glycerol backbone b- glucose é- amino acids d- esters of fatty acids e- octapeptide f- disaccharide g- polysaccharide K- compound lipids i- steroid-like j- lipids k- polar lipids + glucose storage in animals 9- Waxes 10AngiotensinlIarrow_forward(a) Draw a skeletal structure of the anabolic steroid 4-androstene-3,17-dione, also called "andro," from the following description. Andro contains the tetracyclic steroid skeieton with carbonyl groups at C3 and C17, a double bond between C4 and C5, and methyl groups bonded to C10 and C13. (b) Add wedges and dashes for all stereogenic centers with the following information: the configuration at C10 is R, the configuration at C13 is S, and all substituents at ring fusions are trans to each other.arrow_forward
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