The answer to the fill in the blank is option B) Authentication
Passwords, tokens, and fingerprint scans are all examples of Authentication.
We use passwords, tokens and even fingerprints since they can be unique identifications and are usually seen as more secure.
In the above options, fingerprints are seen as the most secure form of authentication since everyone has unique fingerprints.
One of the earliest forms of authentication were time cards used as early as the 1950s and even unique keys and stamps used by early civilizations.
Glycolysis, citric acid cycle, electron transport chain
Protein kinases are located on the plasma membrane as integral or peripheral membrane protein so that they can more readily encounter and phosphorylate other membranes proteins.
These protein are embedded in the phospholipid layer to perform the function of plasma membrane that mainly include the selective transport of molecules and cell - cell recognition.
The plasma membrane perform the function to provide protection for cell. It differentiate between the outside and inside of the cell.
Phospholipid is the lipid membrane that usually consist of lipid bilayers. It act as barrier to protect the cell against environmental issues.
To learn more about phospholipid here
brainly.com/question/14949280
#SPJ4
Answer: A is for sure the answer
Explanation: