Organic Chemistry (8th Edition)
8th Edition
ISBN: 9780134042282
Author: Paula Yurkanis Bruice
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 25.7, Problem 14P
Interpretation Introduction
Interpretation:
The isoprene units has to be marked in lycopene and
Concept Introduction:
Terpenes are made by joining five-carbon units, usually in a head to tail-fashion.
Monoterpenes are those terpenes with two isoprene units-have 10 carbons, sesquiterpenes have 15 carbons, diterpenes have 20 carbons, triterpenes have 30 carbons and tetraterpenes have 40 carbons.
Isopentenyl pyrophosphate is the five-carbon compound used for the biosynthesis of terpenes.
According to the isoprene rule, the isoprene units are terpenoids joined by head to tail linkage or 1-4-linkage.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Draw a structure for 4-bromo-2-pentene where the double bond has a Z geometry and
the chiral carbon an S configuration.
Certain omega-3 fatty acids can be found only in animal sources, such as fatty fish. Two of these are eicosapentaenoic acid (EPA) [20:5] and docosahexaenoic acid (DHA) [22:6], both of which are ω-3 fatty acids. DHA has been shown to be important in healthy brain development, so it has recently been added to infant formulas. Breast milk is rich in DHA as long as the mother maintains a healthy diet that includes fish. Draw skeletal structures of the fatty acids EPA and DHA.
The isoprene rule states that terpenes are divisible into
units.
Chapter 25 Solutions
Organic Chemistry (8th Edition)
Ch. 25.1 - Prob. 1PCh. 25.3 - Which has a higher melting point, glyceryl...Ch. 25.3 - Draw the structure of an optically inactive fat...Ch. 25.3 - Draw the structure of an optically active fat...Ch. 25.5 - Do the identities of R1 and R2 in phosphatidic...Ch. 25.5 - Membranes contain proteins, Integral membrane...Ch. 25.5 - Prob. 8PCh. 25.5 - The membrane phospholipids in deer have a higher...Ch. 25.6 - Treating PGC2 with a strong base such as sodium...Ch. 25.7 - Mark off the isoprene units in menthol, -selinene,...
Ch. 25.7 - Prob. 13PCh. 25.7 - Prob. 14PCh. 25.8 - Propose mechanisms for the Claisen condensation...Ch. 25.8 - Prob. 16PCh. 25.8 - Propose a mechanism for the conversion of...Ch. 25.8 - Propose a mechanism for the biosynthesis of...Ch. 25.8 - Propose a mechanism for the conversion of the E...Ch. 25.8 - The fluoro-substitued geranyl pyrophosphate shown...Ch. 25.8 - Prob. 22PCh. 25.8 - Prob. 23PCh. 25.9 - Draw the individual 1,2-hydride and 1,2-methyl...Ch. 25.10 - Prob. 26PCh. 25.10 - Prob. 27PCh. 25.10 - The acid component of a cholesterol ester is a...Ch. 25.10 - Prob. 29PCh. 25.10 - Prob. 30PCh. 25 - Prob. 31PCh. 25 - An optically active fat, when completely...Ch. 25 - Prob. 33PCh. 25 - a. How many different triacylglycerols are there...Ch. 25 - Cardiolipins are found in heart muscles. Draw the...Ch. 25 - Nutmeg contains a simple, fully saturated...Ch. 25 - Draw the product that is obtained from the...Ch. 25 - Prob. 39PCh. 25 - Prob. 40PCh. 25 - Propose a mechanism for the biosynthesis of...Ch. 25 - 5-Androstene-3.17-dione is isomerized to...Ch. 25 - Prob. 44PCh. 25 - Eudesmol is a sesquiterpene found in eucalyptus....Ch. 25 - Prob. 46PCh. 25 - Prob. 47PCh. 25 - Diethylstilbestrol (DES) was given to pregnant...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Draw out a structure of arachidonic acid, indicating the arrangement of groups around the four double bonds.arrow_forward21. Two fatty acids found in rapeseed oil are behenic acid and erucic acid. Both contain the same number (22) of carbon atoms. Behenic acid is saturated and erucic acid is monounsaturated. The abbreviated structural formula of erucic acid is CH, (CH,),CH=CH-(CH2)11COOH. (a) Deduce the abbreviated structural formula for behenic acid 4 b) Explain why the melting point of erucic acid is lower than that of behenic acid 22. A cell membrane can vary in terms of how "fluid" or "flexible" it is. Describe if you would expect each of the following changes to make a particular membrane more fluid or more rigid. Explain your choices. a) An increase in the cholesterol content b) An increase in the fraction of unsaturated fatty acyl tails in the membrane phospholipids.arrow_forwardA student was given the following list of structural formulas of several compounds and was asked to give them systematic names. How many did the student name correctly? Correct those that are misnamed and explain why it is incorrect. 2,2-dimethyl-4-ethylheptane 5-(2,2-dimethylethyl)nonane 3,3-dichlorooctane 5-ethyl-2-methylhexane 3-isopropyloctane 2-methyl-2-isopropylheptanearrow_forward
- Explain why they would have different chemical properties.arrow_forwardDraw the structure of (R)-3-chloro-3-methylhexane. Use wedges and dashes to clearly indicate stereochemistry.arrow_forwardThe sex attractant of the female tiger moth is an alkane of molecular formula C 18H 38. Is this molecule an acyclic alkane or a cycloalkane?arrow_forward
- 1,4-Butanediol, HOCH₂CH₂CH₂CH₂OH, is an extremely toxic diol because its metabolic products are also toxic. Draw the condensed structure of the most oxidized product formed after the oxidation of 1,4-butanediol.arrow_forward1 Hyaluronic acid acts as a lubricant in the synovial fluid of joints. In rheumatoid arthritis, inflammation breaks hyaluronic acid down to smaller molecules. Under these conditions, what happens to the lubricating power of the synovial fluid?arrow_forwardWhat is the structure for meso-2,5-dichlorohexane?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_forwardName the following aromatic hydrocarbons.arrow_forwardBy saponification of plant material and subsequent acidification, petroselenic acid (C18:1Δ6), which was forming a triglyceride, is extracted. Mark the INCORRECT option: a) The petroselenic acid was part of a vegetable oil. b) Petroselenic acid is classified as ω6. c) Petroselenic acid has a double bond between C6 and C7. d) The oil from which the petroselenic acid was extracted is liquid due to its unsaturation. e) The saponification of said oil produces a salt of petroselenic acid (soap).arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning