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 55 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
Excellent

Liddy

  • Member
  • Posts: 342
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

The difference between a human and an ape. The difference between a human and an ape.
Difference between Functional and Cross-Functional team Difference between Functional and Cross-Functional team
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 ...
Composition of Municipal Solid Waste Composition of Municipal Solid Waste
Composition of Various Fats Foods vary in their composition of fat Composition of Various Fats Foods vary in their composition of fat
Composition of a long bone Composition of a long bone
Video: Kinetic parameters & Kinetic experiment

For a complete list of videos, visit our video library