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stiks02 [169]
3 years ago
6

Biologists use the fluid mosaic model to describe membrane structure. Which statements about the fluid mosaic structure of a mem

brane are correct? Select the three correct statements.
The diverse proteins found in and attached to membranes perform many important functions.
Because membranes are fluid, membrane proteins and phospholipids can drift about in the membrane.
The kinky tails of some proteins help keep the membrane fluid by preventing the component molecules from packing solidly together.
The framework of a membrane is a bilayer of phospholipids with their hydrophilic heads facing the aqueous environment inside and outside of the cell and their hydrophobic tails clustered in the center.
Membranes include a mosaic, or mix, of carbohydrates embedded in a phospholipid bilayer.
Biology
2 answers:
vitfil [10]3 years ago
4 0

This is the best 3 answer about the fluid mosaic structure of a membraneFirst, The diverse proteins found in and attached to membranes perform many important functions.  Second, The framework of a membrane is a bilayer of phospholipids with their hydrophilic heads facing the aqueous environment inside and outside of the cell and their hydrophobic tails clustered in the center.  Third, Because membranes are fluid, membrane proteins and phospholipids can drift about in the membrane.

Explanation:

The fluid mosaic model illustrates the structure of the plasma membrane as a mosaic of elements including phospholipids, cholesterol, proteins, and carbohydrates that provides the membrane a fluid character. Plasma membranes range from 5 to 10 nm in thickness.

The fluid mosaic model is applied to represent the synergies of lipids and proteins in biological membranes. This model essentially proclaims the theory of lateral diffusion, stating that proteins can freely move about within a membrane and that such layers are assumed to effectively be two-dimensional.


katrin2010 [14]3 years ago
3 0
This is the best 3 answer about the fluid mosaic structure of a membraneFirst, The diverse proteins found in and attached to membranes perform many important functions. Second, The framework of a membrane is a bilayer of phospholipids with their hydrophilic heads facing the aqueous environment inside and outside of the cell and their hydrophobic tails clustered in the center. Third, Because membranes are fluid, membrane proteins and phospholipids can drift about in the membrane.
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Arturiano [62]

Answer:

The best explanation for the increased lymphocyte levels in Kaya is that she was not tissue typed prior to her surgery, and her body is mounting an immune response.

Explanation:

When performing an organ transplant, it must be verified whether the organ to be transplanted is compatible -by tissue typing- with the recipient, since it is recognized as a foreign body by the body and can be rejected.

One of the immunological responses to organ rejection is called cell rejection, involving T-helper and cytotoxic lymphocytes.

<u>It is very likely that in Kaya's case the tests have not been performed correctly, and she is experiencing rejection of the organ she received</u>. The progressive increase in lymphocytes may be an indication of this.

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