BIOLOGY
5th Edition
ISBN: 9781265202859
Author: BROOKER
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 14.5, Problem 2CC
Summary Introduction
To determine: The way by which IRP protect people from toxic effects of too much iron.
Introduction: Iron is an important cofactor for various types of cellular enzymes but is toxic at elevated concentrations. For the prevention of toxic effects, some proteins are synthesized in mammalian cells which reduce the toxic level of proteins.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The characteristics of vitamin P include the followings except:
Select one:
a.
It increases the level of hyaluronidase which prevents the oxidation of ascorbic acid and adrenaline, as result it increases the strength of the blood vessels and capillaries
b.
It is related to flavonoids and phenolic compounds
c.
It decreases the capillary fragility and their permeability
d.
Vitamin P acts synergistically with ascorbic acid
Explain why some agents such as iron may display both beneficial and harmful effects.
Give two reasons why people may not want to take supplements that contain beta-carotene or vitamin E.
Chapter 14 Solutions
BIOLOGY
Ch. 14.1 - Prob. 1CCCh. 14.2 - Which genes are under the control of the lac...Ch. 14.2 - With regard to regulatory proteins and small...Ch. 14.2 - What were the key observations made by Jacob,...Ch. 14.2 - CoreSKILL What was the eventual hypothesis...Ch. 14.2 - Prob. 3EQCh. 14.2 - Core Skill: Connections Look back at Fig 9.12....Ch. 14.2 - What are the advantages of having both an...Ch. 14.2 - Prob. 2CSCh. 14.3 - Prob. 1CC
Ch. 14.4 - What are the two opposing effects that histone...Ch. 14.4 - Prob. 1CSCh. 14.5 - Prob. 1CCCh. 14.5 - Prob. 2CCCh. 14 - Prob. 1TYCh. 14 - Prob. 2TYCh. 14 - Transcription factors that bind to DNA and...Ch. 14 - Prob. 4TYCh. 14 - For the lac operon, what would be the expected...Ch. 14 - Prob. 6TYCh. 14 - The trp operon is considered _____ blank operon...Ch. 14 - Prob. 8TYCh. 14 - Prob. 9TYCh. 14 - _____ blank refers to the process that allows a...Ch. 14 - Prob. 1CQCh. 14 - Transcriptional regulation often involves a...Ch. 14 - Prob. 3CQCh. 14 - Discuss the advantages and disadvantages of...Ch. 14 - Discuss the advantages and disadvantages of...
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
- High blood-cholesterol levels are dangerous because of their correlation with atherosclerosis and consequent heart attacks and strokes. Is it possible to eliminate all cholesterol from the bloodstream by having a diet that includes no cholesterol? Is it desirable to have no cholesterol at all in your body? Explain your answer.arrow_forwardMarissa has joined a weight loss program. As part of the program, she regularly submits a urine sample which is tested for ketones. She went to the clinic today, had her urine checked, and was confronted by the nurse who accused Marissa of “cheating” on her diet. How did the nurse know Marissa was not following her diet?arrow_forwardhGH is an important part of fat metabolism, muscle development, and bone growth. Synthetic hGH can be used to treat children and adults suffering from hGH deficiency. More recently, competitive athletes have began taking hGH in an attempt to improve athletic performance. The use of hGH for athletics is banned by many major sporting organizations. A recent study of 44 athletes who took daily injections of hGH over 20 days showed that, on average, the athletes gained 4.2 lbs of muscle, but the gain in muscle did not translate to increased athletic performance.Evaluate each statement regarding the use of hGH by competitive athletes to determine whether the statement is an example of an ethical, economical, societal, or environmental issue. Athletes who play professional sports should be encouraged to take synthetic hormones to improve performance because their job is to win. Athletes who took hGH did not improve their sport performance but did improve their appearance and marketability.…arrow_forward
- If a person receives 1-1.5 g of cholesterol with food, its synthesis in the body is reduced. Explain the causes that lead to the reduction of cholesterol synthesis. Give the names of the enzymes.arrow_forwardIdentify those vitamins that when taken in excess would become toxic into our body. Explain with example.arrow_forward“Zinc supplements can help you beat cold” is this a fact or myth? Why?arrow_forward
- There are undeniable benefits to the use ofpesticides, one of the major ones beingmore attractive, insect-free food. Howwould you personally weigh these benefits compared to the risks of ingestingendocrine-disrupting contaminants?arrow_forwardCholesterol is a needed substance for the human body; we use it as a base for certain hormones and as a support structure in our plasma membranes. If it is needed in the body,how can it also be harmful?arrow_forwardCholesterol is considered essential because it cannot be produced in the body. True Falsearrow_forward
- Marissa has joined a weight loss program. As part of the program, she regu- larly submits a urine sample which is tested for ketones. She went to the clinic today, had her urine checked, and was confronted by the nurse who accused Marissa of “cheating” on her diet. How did the nurse know Marissa was not following her diet?arrow_forwardDuring hibernation (in animals like the brown bear), after the body’s supply of carbohydrates and excess polypeptides have been used for energy, the hibernating animal must switch to using:arrow_forwardCholesterol is synthesized entirely from: a. Oxaloacetate b. Glycerol 3-phosphate c. Acetyl CoA d. Serinearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning