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 49 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

ebonylittles

  • Member
  • Posts: 318
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

The difference between mieosis and mitoses The difference between mieosis and mitoses
Overview of the cell’s principal chemical building blocks Overview of the cell’s principal chemical building blocks
Chemical structures of four amino acids Chemical structures of four amino acids
Chemical bonds join atoms into molecules Chemical bonds join atoms into molecules
As a nerve impulse arrives at the synapse, it triggers the release of a chemical neurotransmitter fr As a nerve impulse arrives at the synapse, it triggers the release of a chemical neurotransmitter fr
Basic Chemical Structure of Amino Acids Basic Chemical Structure of Amino Acids
Video: Brief Summary on Photosynthesis - Animation

For a complete list of videos, visit our video library