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
OverLord2011 [107]
3 years ago
9

Ionic iron is actively transported into the mucosal cells, where it binds to the protein ferritin, a phenomenon called the mucos

al iron barrier. True / False.
Biology
1 answer:
Vika [28.1K]3 years ago
8 0

Answer:

True

Explanation:

The ionic form of iron (Fe2+ and Fe3+) can damage the molecules present in the cell and in the blood. Protective protein escorts namely transferring and ferritin bind to the ionic form of iron during its transport and storage.

In small intestine during absorption, the ionic form of iron is actively transported into the mucosa of intestinal lining. Once inside the mucosal cells, it binds to the ferritin protein. These iron-ferritin complexes of mucosal cells are the stored form of iron.

Following its active absorption, the binding of iron to ferritin in mucosal cells of intestinal lining is referred to as the mucosal iron barrier. When needed, a few of the stored iron is passed into the portal blood while the major proportion of the stored iron is released from the barrier only when the epithelial cells are sloughed off.

You might be interested in
Blanced diet must contain enough energy to meet the body's needs what else must it contain​
Aleksandr-060686 [28]

Answer:

Water

Explanation:

5 0
3 years ago
Read 2 more answers
The sensory receptors in the nose send signals to the *
Mila [183]

Answer:

B is the correct answer.

Explanation:

The sensory receptors in the nose send signals to the olfactory bulb. These signals are then processed by the brain, which sends a response. Olfactory bulb is the one that receives olfactory(relating to the sense of smell) information which is then relayed to other parts of the brain.

4 0
3 years ago
. Two important contrasts between seagulls and wild geese are
Murrr4er [49]
The two contrasts between seagulls and wild geese are migration and their sizes. One way they are similar is that they can both fly for great distances. The other way is that they are similar is that are both very large in size. The correct answer is A. 
6 0
3 years ago
To which phase of disposal of stolen goods does altering serial numbers belong
frutty [35]
The alteration of serial numbers belong to the "Recovery of stolen electrical goods" phase.

NC, sterilization or removing a serial range is usually charged as a secondary offense aboard a thievery offense. Generally, a person who alters or removes a serial range is doing this to hide the actual fact that they either scarf the property or received transferred possession. As such, there's a public interest in toilsome people who have interaction during this activity.
3 0
3 years ago
Why are non-native species dangerous to ecosystems?
Vesnalui [34]

Answer & explanation:

Non-native species may be animals, plants or microorganisms introduced into an ecosystem of which they are not originally part, but where they adapt and come to dominate, harming natural processes and native organisms.

When a new species is introduced into an environment other than its own, it may compete with others, prey heavily on some species, over-breed and even cause disease.

Therefore, it can be concluded that this action may cause the destruction of some species, directly affecting the balance of that ecosystem.

8 0
4 years ago
Other questions:
  • Fermentation of glucose produces ethanol and carbon dioxide. The unbalanced equation is shown above. How many molecules of CO2 a
    9·2 answers
  • Which body system is most involved in maintaining homeostasis
    6·1 answer
  • Which organism is responsible for the production of fermented dairy products, such as yogurt and cheese? A) bacteria B) fungi C)
    8·1 answer
  • Which groups of plants were probably most active in secondary succession and re-establishing the native habitat?
    5·1 answer
  • During which phase of mitosis can the chromatids first be seen under a light microscope
    12·1 answer
  • Which statement best describes the cell after 20 minutes
    11·1 answer
  • When you listen to your favorite music, what is the order in which the sound approaches and enters your nervous system and is in
    8·1 answer
  • What question is most likely related to the field of biology
    13·1 answer
  • What is the difference between normal and sickle hemoglobin at the DNA, RNA, and protein (amino acid) level?
    8·1 answer
  • A<br>TI<br>12 h<br>A<br>С C<br>we<br>4<br>gi<br>de<br>A.<br>С.<br>D​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!