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

Author Question: What part does methylmalonic acid play in the metabolism of B12? Why would the physician analyze for ... (Read 46 times)

torybrooks

  • Hero Member
  • *****
  • Posts: 500
on: Aug 2, 2018
What part does methylmalonic acid play in the metabolism of B12? Why would the physician analyze for this compound?

Question 2

Illustrate the pathway that converts homocysteine to cysteine or to methionine. Show the need for B6, B12, and folic acid.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jaaaaaaa

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Aug 2, 2018
Answer to Question 1

If serum B12 levels are measured, they do not reveal the amount of B12 on a tissue level. Serum B12 could be normal with a low tissue level. Methylmalonic, a metabolite in the B12 pathway is a more accurate indicator of B12 on the tissue level.

Answer to Question 2

This should be done in a schematic format and should include the pathways involving homocysteine conversion and illustrating where the B vitamins are involved. These pathways are available in basic biochemistry texts and most advanced nutrition texts.


torybrooks

  • Member
  • Posts: 500
Reply 2 on: Aug 2, 2018
:D TYSM

debra928

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

An overview of glucose metabolism An overview of glucose metabolism
The amino acid sequences of whale myoglobin and the α and β chains of human hemoglobin The amino acid sequences of whale myoglobin and the α and β chains of human hemoglobin
The four processes of pharmacokinetics: absorption, distribution, metabolism, and excretion. The four processes of pharmacokinetics: absorption, distribution, metabolism, and excretion.
The structures of the brain that have been shown to play a role in memory. Because it would have ... The structures of the brain that have been shown to play a role in memory. Because it would have ...
Some of the common structural abnormalities seen in chromosomes. (a) In a deletion, part of a chromo Some of the common structural abnormalities seen in chromosomes. (a) In a deletion, part of a chromo
Flail chest (Part 1) Flail chest (Part 1)
Video: Coronary Heart Disease

For a complete list of videos, visit our video library