Question

Iron, zinc, and copper all function as part of antioxidant enzymes to combat oxidative stress. On...

  1. Iron, zinc, and copper all function as part of antioxidant enzymes to combat oxidative stress. On the other hand, free (unbound) iron and copper can also act as pro-oxidants. Do you think that free zinc would also act as a pro-oxidant? Explain why or why not in 2-3 sentences.
Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Yes . Free zinc would also act as a pro-oxidant. Zn2+ have direct prooxidation and direct anti-oxidation capacity. Metallothionein enzyme can be induced by Zn2+. Under oxidative stress conditions, a zinc dependant transcription factor, MTF-1 can activate metallothionein and protoect cells from oxidative stress. Not only this, as a component of superoxide dismutase, Zn2+ is important in converting superoxide  into normal oxygen molecule. Other than this functions, Zn2+ is involved in protection of sulhydryl group in proteins, stabilization of Zinc-fingure protein and lipid peroxidation.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Part 1) Obtain      copper strip, 5mL of 0.1M copper(II)sulfate, iron strip, 5mL of 0.1M iron(II)sulfate,...
Part 1) Obtain      copper strip, 5mL of 0.1M copper(II)sulfate, iron strip, 5mL of 0.1M iron(II)sulfate, lead strip, 5mL of lead(II)nitrate, zinc strip, 5mL of zinc(II)sulfate and 10mL of potassium nitrate for salt bridge. Write the standard reduction potential for Cu+2/Cu, Fe+2/Fe, Pb+2/Pb, and Zn+2/Zn. Saturate 7 filter paper strips in potassium nitrate to be used as salt bridge. (one is for part 2) Make a voltaic cell (2 solutions/strips of your choice) and read the voltmeter. List all 6...
1a. Which of the following is not a possible function of membrane proteins? act as enzymes...
1a. Which of the following is not a possible function of membrane proteins? act as enzymes transport molecules or ions anchor the cytoskeleton help bind the membrane together 1b. Which of these statements is not true of dynamic equilibria? As many solvent molecules move across the membrane in one direction as in the other. All random motion of molecules ceases once equilibrium is reached. All gradients have ceased to exist. Net diffusion is no longer occurring. 1c. A tea strainer...
PART 2 CASE ETHICAL CHOICES IN EMPLOYEE DISCOUNTS Angela is feeling a lot of stress at...
PART 2 CASE ETHICAL CHOICES IN EMPLOYEE DISCOUNTS Angela is feeling a lot of stress at work these days and she’s worried that her behaviour over the past few months will get her into trouble, not only with her boss and the company she works for, but also potentially with the police. It all started a few months ago, when one of Angela’s old classmates came in to the store where she worked. Her classmate explained that she was just...
Does minimum wage cause unemployment? The minimum wage has evoked controversy since its passage as part...
Does minimum wage cause unemployment? The minimum wage has evoked controversy since its passage as part of the Fair Labor Standards Act of 1938. Proponents of the minimum wage argue that a higher minimum wage will help create jobs, grow the economy, help the war on poverty, and will reduce wage inequality. Its critics stress that the minimum wage causes unemployment, hurts the economy, and actually harms the low-income people that were supposed to be helped. These are clearly very...
provide 3-4 paragraphs post (team 2) 1-What are 4 key things you learned about the topic...
provide 3-4 paragraphs post (team 2) 1-What are 4 key things you learned about the topic from reading their paper? 2-How does the topic relate to you and your current or past job? 3-Critique the paper in terms of the organization and quality.1- Employee Stress and how it has an Adverse Effect on a Company This paper explores employee stress and how it has an adverse effect on a company, its employees and the organization. Job stress can have a...
a)How is it possible to determine if CaCO3 is Cl- free after synthesis? b)How can the...
a)How is it possible to determine if CaCO3 is Cl- free after synthesis? b)How can the Cl- ions be remove from CaCO3 after synthesis? I should answer the questions from the following experiment but if you know the answer and you are sure, yo do not need to read experiment. Please answer correctly because i hav no chance to make wrong :(((( Physical and Chemical Properties of Pure Substances Objective The aim of today’s experiment is to learn handling chemicals...
Part 1: Two Round Conductors Gather all items required for the exercise. Note: If using the...
Part 1: Two Round Conductors Gather all items required for the exercise. Note: If using the lab kit box, remove contents and place in a secure area. Put on your safety goggles. Center the black conductive paper on the top of the box, grid-side up. Place the two metal nuts (conductors) at the (5 cm, 10 cm) and (20 cm, 10 cm) positions on the paper. Secure using two dissection pins for each conductor. See Figure 13. Note: Place the...
13-19 Describe how Bass Pro Shops became the nation’s leading outdoor retailer based on the retail...
13-19 Describe how Bass Pro Shops became the nation’s leading outdoor retailer based on the retail marketing mix. 13-20 In terms of the major types of retailers, how would you classify Bass Pro Shops? 13-21 Why is Bass Pro Shops succeeding while Cabela’s is floundering? 13-22 Is it a good idea for Bass Pro Shops to acquire Cabela’s? Explain. Outdoor-products megaretailer Bass Pro Shops has seemingly been breaking the rules of retail for more than 40 years, basking in the...
The assignment summary sheets will be submitted week 14 with Test 3. You are to personally...
The assignment summary sheets will be submitted week 14 with Test 3. You are to personally experience the power and satisfaction of developing these skills firsthand and to reflect and write about this experience. Over the years, many students have shared amazingly rewarding experiences as they worked on these skills. The assignment will be evaluated and be weighted as 5% of your final mark (together, they are worth 20% of your mark for Test 3, which is worth 25% of...
READ THE CASE STUDY AND ANSWER THE FOLLOWING QUESTIONS 2nd CASE: An Unexplained Death A 65-year-old...
READ THE CASE STUDY AND ANSWER THE FOLLOWING QUESTIONS 2nd CASE: An Unexplained Death A 65-year-old man of Scandinavian descent was rushed to the Emergency Room of your local hospital after a family member discovered him unconscious in his home. The woman who dialed “911” told the dispatcher that the man, her brother, was the local librarian of the past 10 years and had no spouse or children. She reported that they had spoken the day before, and he had...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT