This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Explain the difference between the chemical composition of hemosiderin and that of ferritin. What ... (Read 24 times)

yoooooman

  • Hero Member
  • *****
  • Posts: 557
on: Jun 25, 2018
Explain the difference between the chemical composition of hemosiderin and that of ferritin.
 
  What will be an ideal response?

Question 2

Explain how lead inhibits heme synthesis.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

diesoon

  • Sr. Member
  • ****
  • Posts: 353
Reply #1 on: Jun 25, 2018
Answer to Question 1

Answer: Hemosiderin is an amalgam of iron, proteins, lipids, and carbohydrates. Ferritin is composed of polypeptides arranged in a spherical shell. Iron atoms are stored in the shell.

Answer to Question 2

Answer: Lead passes to the bone marrow where it accumulates in the mitochondria of erythroblasts and inhibits the enzymes involved in heme synthesis. RNA aggregates and mitochondria degenerates, forming basophilic stippling. Some aggregates contain free ionized iron. The enzymes most sensitive to lead are ALA-D and ferrocheletase.


yoooooman

  • Member
  • Posts: 557
Reply 2 on: Jun 25, 2018
Thanks for the timely response, appreciate it

alvinum

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

11.2 The chemical structure of mescaline, derived from the peyote cactus 11.2 The chemical structure of mescaline, derived from the peyote cactus
Chemical structure of lipids Chemical structure of lipids
Testing the Chemical Characteristics of Urine with Reagent Strips Testing the Chemical Characteristics of Urine with Reagent Strips
Chemical structure of DNA. Chemical structure of DNA.
After the chemical exfoliation substance has been applied, wrap the two top sheets around the client ... After the chemical exfoliation substance has been applied, wrap the two top sheets around the client ...
Chemical structures of the pyrimidines and purines Chemical structures of the pyrimidines and purines
Video: Arthroscopy

For a complete list of videos, visit our video library