Biology
4th Edition
ISBN: 9781259188121
Author: Peter Stiling, Robert Brooker, Linda Graham, Eric Widmaier
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 13.6, 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
Give two reasons why people may not want to take supplements that contain beta-carotene or vitamin E.
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.
Chapter 13 Solutions
Biology
Ch. 13.1 - Prob. 1CCCh. 13.2 - Which genes are under the control of the lac...Ch. 13.2 - With regard to regulatory proteins and small...Ch. 13.2 - What were the key observations made by Jacob,...Ch. 13.2 - CoreSKILL What was the eventual hypothesis...Ch. 13.2 - Prob. 3EQCh. 13.2 - Core Skill: Connections Look back at Fig 9.12....Ch. 13.2 - What are the advantages of having both an...Ch. 13.2 - Prob. 4CCCh. 13.4 - Prob. 1CC
Ch. 13.4 - Prob. 2CCCh. 13.4 - Prob. 1BCCh. 13.6 - Prob. 1CCCh. 13.6 - Prob. 2CCCh. 13 - Prob. 1TYCh. 13 - Prob. 2TYCh. 13 - Transcription factors that bind to DNA and...Ch. 13 - Prob. 4TYCh. 13 - For the lac operon, what would be the expected...Ch. 13 - Prob. 6TYCh. 13 - The trp operon is considered _____ blank operon...Ch. 13 - Prob. 8TYCh. 13 - Prob. 9TYCh. 13 - _____ blank refers to the process that allows a...Ch. 13 - Prob. 1CQCh. 13 - Transcriptional regulation often involves a...Ch. 13 - Prob. 3CQCh. 13 - Discuss the advantages and disadvantages of...Ch. 13 - 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
- Which of the following statements is true about the drugs known as "statins"? O They block the release of cholesterol from the liver O They block the LDL receptors in the tissue O They block the production of phospholipids O They block the enzyme that makes triacylglycerol O They block the enzyme that makes cholesterolarrow_forwardIf 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
- Cholesterol is considered essential because it cannot be produced in the body. True Falsearrow_forwardWhich statement about steroids is TRUE? Cytochrome P450 monooxygenase introduces oxygen atoms into calcitriol. Cytochrome c oxidase requires cholesterol for full activity. All classes of steroid hormones have a different number of carbon atoms. Cholesterol is excreted from the organism only in the form of bile salts. All steroids are usually hydrophilic, so they can be transported without the help of lipoprotein particles.arrow_forwardAll of the following qualities apply to nateglinide, except:A. Short half-lifeB. Minimal risk for developing hypoglycemiaC. Metabolized by liver D. Restores early insulin secretionE. Excreted by kidneysarrow_forward
- If a person is a strict vegan and they are Feeling fatigue, tingling in the hands and feet, having a tongue that is smooth and red, and red blood cells that are abnormally large and immature what vitamin or mineral are they deficient on? What is the toxic level?arrow_forwardWhen comparing two multivitamins in the store, you see that one has 500% of the daily value for a particular vitamin, while the other has 100% of the daily value for that vitamin. Is the one with 500% of the daily value necessarily better for your health? Explain your answer.arrow_forwardObtain a bottle of a daily vitamin supplement. How many milligrams of vitamin C are contained per tablet?arrow_forward
- Excess intake of what vitamin can mask the early signs of a vitamin B12 deficiency and lead to cognitive impairment? niacin thiamin folate vitamin B6arrow_forwardIdentify ALL of the following which are TRUE regarding cholesterol and disease: if an artery leading to the heart is blocked, a heart attack could result O Artery inflammation can increase the risk of clots and thromboses; this could lead to arterial blockage (reduced blood flow in an artery) blood vessel inflammation can become self-perpetuating; where inflammation occurs, it becomes more likely that inflammation will continue, especially when blood LDL are high and HDL are low An arterial plaque can increase the chance of developing hypertension exercise has no effect on blood cholesterol dietary artificial trans fats seem to increase LDL and decrease HDL more than both dietary saturated fats and dietary cholesterol in most people (that is, trans fats are worse than sat fats and cholesterol) if a product lists "partially hydrogenated" oil as an ingredient, it contains some trans fat even if it is less than .5 g per serving. hypertension can put extra strain on the heart and increase…arrow_forwardWhich of the following descriptions about essential amino acids is correct? Select one: a. Essential amino acids cannot be absorbed by human body. b. There are 11 essential amino acids. c. The body can synthesize proper proteins with missing essential amino acids. d. Vegetables are richer in essential amino acids when compared with meat. e. Meat has high protein quality than vegetable.arrow_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