Concept explainers
(a)
Interpretation:
The structural similarity between RU486 and progesterone should be determined.
Concept Introduction:
The RU486, which is also known as mifepristone is a drug is helpful in the termination of the pregnancy. It basically functions as an agent, which cause the shedding of the uterine lining and causes uterine contraction. This molecule is structurally similar to the hormone progesterone.
(b)
Interpretation:
Describe the difference between the structure of RU486 and progesterone.
Concept Introduction:
The RU486, which is also known as mifepristone is a drug is helpful in the termination of the pregnancy. It basically functions as an agent, which cause the shedding of the uterine lining and causes uterine contraction. This molecule is structurally similar to the hormone progesterone.
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Chapter 21 Solutions
Student Solutions Manual for Bettelheim/Brown/Campbell/Farrell/Torres' Introduction to General, Organic and Biochemistry, 11th
- 22-53 Do iron and zinc ions play role in protein structure? If so, what is the role for either or both?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_forwardHow are testosterone and progesterone structurally similar? How are they different?arrow_forward
- 21-60 (Chemical Connections 21C) Why were Mark McGwire and Floyd Landis not given the same penalties for taking steroids in their sports?arrow_forward22-48 How many amino acid residues in the A chain of insulin are the same in insulin from humans, cattle (bovine), hogs, and sheep?arrow_forward22-9 What is the difference in structure between tyrosine and phenylalanine?arrow_forward
- 1 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_forward21-3 Proteins, nucleic acids, and carbohydrates are grouped by common structural features found within their group. What is the basis for grouping substances as lipids?arrow_forward21-85 Which of the following statements is (are) consistent with what is known about membranes? (a) A membrane consists of a layer of proteins sandwiched between two layers of lipids. (b) The compositions of the inner and outer lipid layers are the same in any individual membrane. (c) Membranes contain glycolipids and glycoproteins. (d) Lipid bilayers are an important component of membranes. (e) Covalent bonding takes place between lipids and proteins in most membranes.arrow_forward
- 22-62 Distinguish between intermolecular and intramolecular hydrogen bonding between backbone groups. Where in protein structures do you find one, and where do you find the other?arrow_forwardWhat structure do all steroids have in common?arrow_forward21-7 For the diglycerides in Problem 21-6, predict which two will have the highest melting points and which two will have the lowest melting points.arrow_forward
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