1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Virty [35]
3 years ago
15

The allosteric effector molecule 2,3-BPG facilitates transfer of oxygen between maternal and fetal blood in the placenta. Which

of the following correctly describes the role of BPG in this process?
a. Fetal hemoglobin binds oxygen better than maternal hemoglobin because BPG is unable to cross the placenta into fetal blood, causing more fetal hemoglobin to be in the R state.
b. Fetal hemoglobin binds oxygen better than maternal hemoglobin because BPG is present at similar levels in fetal and maternal blood, but it binds poorly to fetal hemoglobin, causing more fetal hemoglobin to be in the R state.
c. Fetal hemoglobin binds oxygen better than maternal hemoglobin because BPG is present at similar levels in fetal and maternal blood, but it binds poorly to fetal hemoglobin, causing more fetal hemoglobin to be in the T state.
d. Fetal hemoglobin releases oxygen better than maternal hemoglobin because BPG is present at similar levels in fetal and maternal blood, but it binds more effectively to fetal hemoglobin causing more fetal hemoglobin to be in the T state.
Biology
1 answer:
My name is Ann [436]3 years ago
8 0

Answer:

b. Fetal hemoglobin binds oxygen better than maternal hemoglobin because BPG is present at similar levels in fetal and maternal blood, but it binds poorly to fetal hemoglobin, causing more fetal hemoglobin to be in the R state.

Explanation:

BPG is a chemical compound which is found in red blood cells. It is known for decreasing the affinity of hemoglobin with oxygen and thus helps in unloading oxygen from hemoglobin.

Owing to the structural difference, fetal hemoglobin binds to BPG with less affinity as compared to maternal hemoglobin thus it shifts the oxyhemoglobin curve to the left i.e. causes fetal hemoglobin to be in the R state. Due to this, fetal hemoglobin can carry up to 30% more oxygen as compared to maternal hemoglobin. As a result of this, oxygen is readily transferred to fetal blood when maternal blood enters placenta which restricts hypoxia in fetus.

You might be interested in
PLEASE HELP ASAP (will give brainliest)
Paul [167]

Cladistics is a way of grouping the related branches based on sharing derived characters within the group. However these characters are not found in other species except by convergence. Phylogeny is a way of tracking evolutionary relationships based on shared characters based on artificially defined levels of taxonomy.

5 0
3 years ago
PLEASE BE IN THIS PROJECT!!!!Hey guys!! Im starting a PROJECT!!!! with you guys!!!! So if you want you can get a partner for thi
ioda
Ook so whats this about?
5 0
3 years ago
Which is not an example of a renewable source
laila [671]

Fossil Fuels, Coal, and Gold

4 0
3 years ago
Help ASAP!!!! 20 points.
Lelechka [254]

Answer:

5= mRNA is “messenger” RNA. mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template. This process requires nucleotide triphosphates as substrates and is catalyzed by the enzyme RNA polymerase II. The process of making mRNA from DNA is called transcription, and it occurs in the nucleus.

6 0
3 years ago
ANSWER FOR: Draw a model of what you think would happen with the gray and black color mutation in the seventh and eighth generat
gavmur [86]
Anwser

Thank you so much for posting this, I need it for my class. :)

May I have Brainliest?
4 0
3 years ago
Other questions:
  • Which is a step of the convection cycle in Earths atmosphere?
    10·2 answers
  • Certain glands secrete hormones directly into the blood stream. are these glands exocrine or endocrine glands?
    8·1 answer
  • Describe how the nucleus, endoplasmic reticulum, ribosomes, Golgi apparatus, and vesicles work to produce protein?
    10·1 answer
  • Through_ , larger molecules are formed​
    9·1 answer
  • If an enzyme is added to a solution where its substrate and products are in equilibrium, what would occur
    15·1 answer
  • Which of these is changed by the Milankovitch cycles?
    6·2 answers
  • 5. All of the following are functions of nonspecific defenses, EXCEPT:
    5·2 answers
  • Why split up the letters on top instead of writing both of them in one box? punnet square
    9·1 answer
  • 3. What biotic and abiotic factors
    14·2 answers
  • What must happen in order for a new species to evolve.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!