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
Setler [38]
3 years ago
13

Mannitol is a drug that temporarily disrupts tight junctions. This drug is often added to medications that need to get into the

extra-cellular fluid of the brain because it will make the capillaries of the ________ more permeable to larger molecules. Mannitol is a drug that temporarily disrupts tight junctions. This drug is often added to medications that need to get into the extra-cellular fluid of the brain because it will make the capillaries of the ________ more permeable to larger molecules. blood-brain barrier meninges ventricles arachnoid villi
Biology
1 answer:
Marina86 [1]3 years ago
5 0

Answer:

Mannitol is a drug that temporarily disrupts tight junctions. This drug is often added to medications that need to get into the extra-cellular fluid of the brain because it will make the capillaries of the <u>blood-brain barrier </u>more permeable to larger molecules.

Explanation:

The blood-brain barrier's components are endothelial cells, basement membrane, pericytes, and astrocyte endfeet. The gaps between endothelial cells are small. As a consequence, they form tight junctions that allow the passage of specific and small molecules. In this way, the barrier stops any pathogen from entering the brain. That is to say, that the blood-brain barrier is extremely selective; therefore, medications will not pass through it, so to allow the medicine to enter the brain extracellular fluid, the tight junctions of the endothelial tissue must be disrupted with mannitol.

You might be interested in
What do snakes and giraffes have in common? (key shared characteristics) 
den301095 [7]
They both are mammals
4 0
3 years ago
Describe two ways of measuring biodiversity. Explain the relationship between biodiversity and ecosystem stability. As part of y
Daniel [21]

Answer:

- Two predictors to measure biodiversity: Species Richness and Simpson's Index  

- Biodiversity increases ecosystem stability  

- It has been shown that natural ecosystems are more stable than monocultures, while isolated human populations are found in highly diverse ecosystems

Explanation:

Two major predictors to measure biodiversity are: 1-species richness and the 2-Simpson's index. The species richness is a count for the total number of the species in a given habitat and/or ecosystem; while Simpson's index is a similarity index that indicates the likelihood that two different individuals selected at random from a sample will belong to the same species, thereby also estimating the biodiversity of a habit and/or ecosystem. Simpson's index takes into consideration the number of species and the abundance of each species. Ecosystems with high diversity tend to be more stable and resilient than ecosystems with low diversity. Biodiversity increases ecosystem stability due to the species asynchrony, which is a strong driver capable of stabilizing multiple processes/functions in the ecosystems over time (e.g., the productivity of the ecosystems over time). In this regard, it has been shown that forests that are highly diverse in the number of species are more productive and stable under stress than monocultures (i.e., agricultural crops), while isolated human populations live in sustainable ecosystems, it is for that reasons that isolated tribes are only found in highly diverse ecosystems.

5 0
3 years ago
Hey can u help me?<br><br><br><br><br>what is photosynthesis?​
den301095 [7]

Answer:

The process of making food by the green plant by using sunlight,water,mineral, carbon dioxide,etc.is called photosynthesis.

hope this not childish.

7 0
3 years ago
Read 2 more answers
PLEASE HELP MEEEEEE!!!!
Lynna [10]

Answer:

The answer to this question is D.

Explanation:

This is because it was affected by the wind because sand is very light. ALso, I already learned this stuff so I am kind of an expert ngl.

8 0
2 years ago
4. Describe similarities and/or differences in compartmentalization between prokaryotic and eukaryotic cells. 5. Sketch the proc
Mrac [35]

Answer:

Eukaryotes:

-Organisms with a well defined nucleus are known as eukaryotes. such cells are called as eukaryotic cells.

- Their nucleus is enclosed within the nuclear membrane.

- They do not posses a mitochondria.

- The cell wall is the outer most layer of a eukaryotic cell (only plant cells have a cell wall)

- The cells are divided by a process called mitosis.

Eg: Plants, Animals.

Prokaryotes:

- Organisms without a well defined nucleus are known as prokaryotes. Such cells are called as Prokaryotic cells.

- They lack nuclear membrane.

- Mitochondria, Golgi bodies, chloroplast and lysosomes are absent.

- The genetic material (DNA) is present on the chromosome.

Eg: Every organism coming under the kingdom monera.

Explanation:

7 0
2 years ago
Other questions:
  • What does it mean for an atom's behavior if it missing electrons in the valence shell?
    14·1 answer
  • Whats the shortest day of the year in the northern hemishere?
    9·1 answer
  • According to this spirographic record, what is the total volume of exchangeable air for a normal male?
    11·1 answer
  • Explain why it can be difficult to definitively diagnose a disease.
    9·1 answer
  • On the map, whichs symbol represents a cold front? Choose the correct letter
    9·2 answers
  • Toxic waste can enter foods through the contamination of groundwater. <br> a. True <br> b. False
    12·2 answers
  • 1
    7·1 answer
  • Table salt and table sugar, examine the chemical formulas for salt and sugar. What do they tell you about what type of bonding i
    8·1 answer
  • Which statement is correct about gasoline when it is burned?
    11·2 answers
  • Somebody help me so I can give y’all some points
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!