Campbell Biology: Custom Edition
18th Edition
ISBN: 9781323717271
Author: Urry, Cain, Wasserman, Minorsky, Reece
Publisher: PEARSON C
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 18, Problem 14TYU
SCIENCE. TECHNOLOGY, AND SOCIETY Trace amounts of dioxin were prsent in Agent Orange, a defoliant sprayed on Vegetation during the Vietnam War. Animal tests suggest that dioxin can cause birth defects, cancer, liver and thymus damage, and immune system suppression, sometimes leading to death. but the animal tests are equivocal; a hamster is not affected by a dose that can kill a guinea pig. Dioxin acts like a Steroid hormone, entering a cell and binding to a cytoplasmic receptor that then blnds the cell's DNA.
- (a) Discuss how this mechanism might help explain the vari- ety of dioxin's effects on different body systems and in different animals.
- (b) Discuss how you might determine whether a type of illness is related to dioxin exposure. Next, discuss how you might determine whether a particular individual became ill as a result of exposure to dioxin. Which would be more difficult to demonstrate? Why?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Plants in the genus Ephedra have been harvested for their active substance ephedrine for centuries. Ephedrine is used to reduce the symptoms of bronchitis and asthma, as a stimulant and study aid, and as an appetite suppressant. It is also the main ingredient in the illegal production of methamphetamine. Since 2006, the sale of ephedrine and related substances has been limited and monitored in the United States. One effect of ingesting ephedrine is greatly increased metabolism, which has been known to kill users of ephedrine. How might an increased metabolic rate cause death?
TTX is found in a variety of animals and is often used as a defense against predation. Puffer fish-a delicacy in Japanese cuisine-a well-known cause of accidental, sometimes fatal. TTX food poisoning in humans. A single newt killed three hunters after it got into their coffee pot. As the newt was boiled over the campfire, a substance on its skin-called tetrodotoxin (TTX)-contaminated the water to make a lethal brew . The newt's body was not eaten-- the campers simply drank water in which it was boiled. Cells use the sodium electrical gradient to perform many activities. What membrane protein is used to establish the sodium electrochemical gradient and how does it work?
TTX is found in a variety of animals and is often used as a defense against predation. Puffer fish-a delicacy in Japanese cuisine-a well-known cause of accidental, sometimes fatal. TTX food poisoning in humans. A single newt killed three hunters after it got into their coffee pot. As the newt was boiled over the campfire, a substance on its skin-called tetrodotoxin (TTX)-contaminated the water to make a lethal brew . The newt's body was not eaten-- the campers simply drank water in which it was boiled If the poisoning resulted from drinking contaminated water alone, what does this tell you about the solubility and stability of the TTX present on the newt's skin?
Chapter 18 Solutions
Campbell Biology: Custom Edition
Ch. 18.1 - How does binding of the trp corepressor to the trp...Ch. 18.1 - Describe the binding of RNA Polymerase,...Ch. 18.1 - WHAT IF? A certain mutation in E. coli changes...Ch. 18.2 - In general, what are the effects of histone...Ch. 18.2 - MAKE CONNECTIONS Speculate about whether the same...Ch. 18.2 - Compare the roles of general and specific...Ch. 18.2 - Once mRNA encoding a particular protein reaches...Ch. 18.2 - WHAT IF? Suppose you compared the nucleotide...Ch. 18.3 - Compare miRNAs and siRNAs, including their...Ch. 18.3 - WH AT IF? Suppose the mRNA being degraded in...
Ch. 18.3 - MAKE CONNECTIONS Inactivation of one of the X...Ch. 18.4 - MAKE CONNECTIONS As you learned in Chapter 12,...Ch. 18.4 - MAKE CONNECTIONS Explain how the signaling...Ch. 18.4 - How do fruit fly maternal effect genes determine...Ch. 18.4 - Prob. 4CCCh. 18.5 - Prob. 1CCCh. 18.5 - Under what circumstances is cancer considered to...Ch. 18.5 - MAKE CONNECTIONS The p53 protein can activate...Ch. 18 - Compare and contrast the roles of a corepressor...Ch. 18 - Describe what must happen in a cell for a gene...Ch. 18 - Why are miRNAs called noncoding RNAs? Explsin how...Ch. 18 - Describe the two main processes that cause...Ch. 18 - Compare the usual functions of proteins encoded by...Ch. 18 - If a particular operon encodes enzymes for making...Ch. 18 - Muscle cells differ from nerve cells mainly...Ch. 18 - The functioning of enhancers is an example of (A)...Ch. 18 - Cell differentiation always involves (A)...Ch. 18 - Which of the following is an example of...Ch. 18 - What would occur if the repressor of an inducible...Ch. 18 - Absence of bicoid in mRNA from a Drosophila egg...Ch. 18 - Which of the following statements about the DNA in...Ch. 18 - Within a cell, the amount of protein made using a...Ch. 18 - Prob. 10TYUCh. 18 - draw it The diagram below shows five genes,...Ch. 18 - Prob. 12TYUCh. 18 - Prob. 13TYUCh. 18 - SCIENCE. TECHNOLOGY, AND SOCIETY Trace amounts of...Ch. 18 - WRITE ABOUT A THEME: INTERACTIONS In a Short essay...Ch. 18 - SYNTHESIZE YOUR KNOWLEDGE The flashlight fish has...
Knowledge Booster
Learn more about
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
- Consider the structure of cholesterol, a small hydrophobic molecule with a sterol backbone similar to that of three of the hormones, but possessing fewer polar groups such as –OH, =O, and –COO–. If cholesterol were not normally found in cell membranes, could it be used effectively as a hormone if an appropriate intracellular receptor evolved?arrow_forwardPolychlorinated biphenyls (PBCS) are a group of chemicals with a wide range of uses in manufacturing and found in fire retardants, plastics, adhesives, and lubricants, to name of few of its uses. They are now banned but are still present in waterways and in our environment. They are extremely stable under most conditions and fat soluble. Even at low doses, they can mimic natural hormones found in many animals and can disrupt the development. They are known as "hormone disruptors." PBCS have also been known to cause cancer. What else can you anticipate from these PBCS? PBCS are likely to undergo biomagnification. PBCS are likely to undergo eutrophication. PBCS are the rare compounds that can exhibit both eutrophication and biomagnification. PBCS no longer pose a problem because their use has now ceased and we have medical interventions for reversing their effects. PBCS are likely to concentrate only in secondary consumers.arrow_forward1. Plays an important role in intracellular signaling 2. helps maintain an erection in men 3. has a key role in glycoprotein synthesis 4. Helps control diabetes by reducing blood sugar and insulin resistance 5. facilitates absorption of minerals such as Potassium, Magnesium, and Calcium 6. removes toxic substances from the breakdown of muscle proteins during intensive exercise 7. has a synergistic effect with Vitamin E and Selenium 8. Needed to produce tryptophan 9. Protects myelin sheath 10. facilitates removal of heavy metals such as mercury Choices for the answers: A. Alanine B. Cysteine C. Glutamine D. Glutathione E. Glycine F. Serine G. Taurine H. Aspargine I. Aspartic Acid J. Proline K. L-arginine L. Tyrosinearrow_forward
- What bioethical principle justifies this action? Can this supersede the violated principle/s?arrow_forward1 2 3 4 description Cell membranes in both plants and animals are primarily made of this kind of molecule. This kind of molecule is usually a short-lived messenger molecule that conveys information about pain and inflammation. When circulating nutrients are insufficient to meet the body's energy needs, this type of molecule is broken down into smaller molecules that can be oxidized in cells to supply energy. This molecule is the starting point for the synthesis of many hormones, including the sex hormones testosterone and estradiol. Which molecules fit this description? 0 0 U 0 none of them 0 none of them Onone of them none of themarrow_forwardWhich of the following is false about chymotrypsin? A Hydrolytic cleavage of a peptide bond by chymotrypsin involves two nucleophilic attacks to the substrate B It is activated in the presence of trypsin C It is synthesized in the thyroid gland D Polypeptide chains in chymotrypsin are linked by S-S bondsarrow_forward
- The Bradykinin Hypothesis suggests that COVID-19 is primarily a kidney disease that can be alleviated by vitamin D a vascular disease that makes blood vessels leaky a cardiac disease that causes cardiac muscle slowdown a respiratory disease that dries out the lungsarrow_forwardPlease help me, idk if my answer is correct and I am trying to use this to study!!arrow_forwardPlease help me, idk if my answer is correct and I am trying to use this to study!!arrow_forward
- Question 1 Which of the following is not true regarding the circulatory system?AnswerThis system ensures that waste products are removed from all tissues of the body.This system is made up of the blood vessels, heart, and blood.The circulatory system has an important role in the exchange of gases in the lungs.During fetal development, the circulatory system develops from the lymphatic system.This system carries excess water and salts to the urinary system.1 points Question 2 Which of the following sources of scientific information is the most technical?Answergeneral interest news magazinesnewspapersnonfictional bookspeer-reviewed journalsscience magazines1 points Question 3 A farmer wants to improve crop yield in his fields by testing the effectiveness of a new pesticide available on the market. Which of the following is the best control for this experiment?Answera higher concentration of new pesticide used on the control field than the experimental fieldmore shade on the control field…arrow_forwardSelect all that apply: The aim of the fentanyl project in Baker's group is to do the following to detect the biohazard: | a. Grow the genetically engineered organisms in areas where the biohazard may be deployed. | b. Generate a customized protein that is modified to glow when fentanyl binds to the receptor site. | c. Genetically engineer thale cress to produce customized proteins that they have designed. | d. Custom engineer proteins that glow with fentanyl for use in a spray that can be applied in the field. O e. Modify one of the proteins found in thale cress to glow when fentanyl binds to the receptor site.arrow_forwardPlease note whether each protein is either a Kinase (K), ATPase (A), GTPase (G), Membrane protein (M). Some proteins may need more than one letter: Dynamin [Choose ] Porin [Choose ] EGF Receptor [Choose ] CD4 [Choose ] P-glycoprotein [Choose ] Rho [Choose ] <arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Intro to Cell Signaling; Author: Amoeba Sisters;https://www.youtube.com/watch?v=-dbRterutHY;License: Standard youtube license