Answer:
Explanation:The phospholipid bilayer formed by these interactions makes a good barrier between the interior and exterior of the cell, because water and other polar or charged substances cannot easily cross the hydrophobic core of the membrane. Can water cross the plasma membrane at all?
It also helps the cell move things in and out. The cell membrane is made of what is called a phospholipid bilayer, which means it has two layers of phospholipids. ... This allows the phosphates to be exposed to water, either in the cell or the environment, while the lipids are protected from water Lipids are essential for all life on Earth. They play many important roles in maintaining the health of an organism. Arguably the most important function lipids perform is as the building blocks of cellular membranes. Other functions include energy storage, insulation, cellular communication and protection.Large quantities of water molecules constantly move across cell membranes by simple diffusion, often facilitated by movement through membrane proteins, including aquaporins. In general, net movement of water into or out of cells is negligible.
Answer:
D and A
Explanation:
its more than 1 answer its A and D because everything is missing and will help with the model hope this helps
Answer:A submitter of a premarket notification submission (510(k)) must demonstrate to the Food and Drug Administration (FDA) that the “new device” is “substantially equivalent” (SE) to a legally marketed predicate device. This guidance is intended to help 510(k) submitters demonstrate substantial equivalence. This guidance does not add new regulatory requirements for submitters, it does not change the 510(k) premarket review standard nor does it create extra or new burdens on what has traditionally been submitted in 510(k)s. FDA developed this guidance to improve the predictability, consistency, and transparency of the 510(k) premarket review process. Furthermore, this document is intended to serve as an aid for evaluating the benefit-risk profile of a new device in comparison to the predicate device.
Answer:
Letter C
Explanation:
The checkpoint proteins are specialized proteins that act during some specific points in the cell cycle in order to prevent some errors on the genetic material that is being duplicated. If the error is identified the cycle that is being made takes a halt by those checkpoint proteins.
Answer:
Order Cetacea
Explanation:
The Largest Animal Ever: The Blue Whale
The blue whale (Balaenoptera musculus) is a marine mammal belonging to the suborder of baleen whales.Blue whales belong to the Mammalian Order Cetacea, in the suborder Mysticeti. All baleen whales belong to the suborder Mysticeti, which is Latin for "mustached whales". The blue whale belongs to the rorqual family, Balaenopteridae.
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