Question and answer
Methemoglobinemia
Methemoglobinemia (or methaemoglobinaemia) is a disorder characterized by the presence of a higher than normal level of methemoglobin (metHb, i.e., ferric [Fe3+] rather than ferrous [Fe2+] haemoglobin) in the blood. [ Methemoglobin is a form of hemoglobin that contains ferric [Fe3+] iron and has a decreased ability to bind oxygen. However, the ferric iron has an increased affinity for bound
oxygen.[1] The binding of oxygen to methemoglobin results in an increased affinity of oxygen to the three other heme sites (that are still ferrous) within the same tetrameric hemoglobin unit. This leads to an overall reduced ability of the red blood cell to release oxygen to tissues, with the associated oxygen–hemoglobin dissociation curve therefore shifted to the left. When methemoglobin concentration is elevated in red blood cells, tissue hypoxia can occur. ]
Get an answer
Original conversation
User: Which of the following is an example of an X-linked recessive disorder? A. Methemoglobinemia B. Sickle cell disease C. Huntington disease D. Color blindness

User: Methemoglobinemia

Weegy: Methemoglobinemia (or methaemoglobinaemia) is a disorder characterized by the presence of a higher than normal level of methemoglobin (metHb, i.e., ferric [Fe3+] rather than ferrous [Fe2+] haemoglobin) in the blood. [ Methemoglobin is a form of hemoglobin that contains ferric [Fe3+] iron and has a decreased ability to bind oxygen. However, the ferric iron has an increased affinity for bound oxygen.[1] The binding of oxygen to methemoglobin results in an increased affinity of oxygen to the three other heme sites (that are still ferrous) within the same tetrameric hemoglobin unit. This leads to an overall reduced ability of the red blood cell to release oxygen to tissues, with the associated oxygen–hemoglobin dissociation curve therefore shifted to the left. When methemoglobin concentration is elevated in red blood cells, tissue hypoxia can occur. ]
Expert answered|alfred123|Points 2155|

Question
Asked 7/17/2013 6:20:29 PM
0 Answers/Comments
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
Huntington disease
Weegy: Huntington's disease (HD) is a neurodegenerative genetic disorder that affects muscle coordination and leads to cognitive decline and psychiatric problems. It typically becomes noticeable in mid-adult life. [ HD is the most common genetic cause of abnormal involuntary writhing movements called chorea, which is why the disease used to be called Huntington's chorea. ] (More)
Question
Expert Answered
Asked 7/17/2013 6:25:23 PM
0 Answers/Comments
Which of these is happening when translation takes place? A. tRNAs are bringing amino acids to the ribosomes. B. DNA is being replicated. C. mRNA is still in the nucleus. D. rRNAs expose their anticodons. User: mitosis
Weegy: b. false User: Which one of the following statements about mitosis is correct? A. It forms two identical daughter cells. B. It creates haploid nuclei. C. It's part of the process of oogenesis. D. It consists of two parts: mitosis I and mitosis Weegy: Which one of the following statements about mitosis is correct? answer: A. It forms two identical daughter cells source: › Flashcards (More)
Question
Expert Answered
Asked 7/17/2013 6:27:51 PM
0 Answers/Comments
17,449,840 questions answered
Popular Conversations
Factor the expression. 90x^2 + 33x + 3
Weegy: 90x^2 + 33x + 3 = 3(5x + 1)(6x + 1)
9/20/2014 1:19:07 AM| 5 Answers
Simplify: 4x^3 – 3x^2 + x + 3x^3
9/19/2014 2:21:23 PM| 3 Answers
1/4 + 2/3
9/19/2014 10:26:27 PM| 3 Answers
what is 1/6 as a percent
9/19/2014 7:23:49 AM| 2 Answers
What type of sedimentary rock is rock ...
9/19/2014 7:56:16 AM| 2 Answers
Major newspapers and magazines provide the president this medium for ...
Weegy: The answer is A. Class A mandates. The first group or Class A mandates were communities formerly controlled by ...
9/19/2014 9:13:56 AM| 2 Answers
Weegy Stuff
S
R
L
1
1
P
C
1
P
1
1
L
P
C
P
C
1
P
C
L
P
C
1
P
C
P
C
P
C
L
Points 2207 [Total 26605]| Ratings 5| Comments 2157| Invitations 0|Offline
S
L
1
L
P
C
1
Points 2004 [Total 8535]| Ratings 9| Comments 1914| Invitations 0|Offline
S
L
1
1
1
1
L
1
L
Points 1683 [Total 11463]| Ratings 0| Comments 1683| Invitations 0|Offline
S
L
C
P
C
1
L
L
P
C
1
Points 1658 [Total 17597]| Ratings 12| Comments 1538| Invitations 0|Online
S
L
P
C
L
P
C
P
C
L
P
C
P
C
P
C
Points 1509 [Total 18681]| Ratings 5| Comments 1459| Invitations 0|Offline
S
1
L
1
L
P
P
L
Points 606 [Total 11852]| Ratings 0| Comments 606| Invitations 0|Offline
S
L
P
C
P
C
1
L
P
C
L
P
C
P
C
P
C
P
C
Points 530 [Total 19061]| Ratings 1| Comments 520| Invitations 0|Offline
S
L
Points 508 [Total 1178]| Ratings 0| Comments 508| Invitations 0|Offline
S
1
L
L
Points 428 [Total 5552]| Ratings 4| Comments 388| Invitations 0|Offline
S
Points 63 [Total 63]| Ratings 2| Comments 33| Invitations 1|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.