THE CELL
TRANSPORT INTO AND OUT OF THE CELL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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folds itself into a double layer when placed into polar surroundings
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does not hold the characteristics of a solid substance
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is composed of many different kinds of macromolecules
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moves proteins laterally through the entire length of a cell
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Detailed explanation-1: -The membrane is depicted as mosaic because like a mosaic that is made up of many different parts the plasma membrane is composed of different kinds of macromolecules, such as integral proteins, peripheral proteins, glycoproteins, phospholipids, glycolipids, and in some cases cholesterol, lipoproteins.
Detailed explanation-2: -The fundamental building blocks of all cell membranes are phospholipids, which are amphipathic molecules, consisting of two hydrophobic fatty acid chains linked to a phosphate-containing hydrophilic head group (see Figure 2.7).
Detailed explanation-3: -Complete answer: The key ingredients of a cell membrane are phospholipids, proteins, and carbohydrate groups which help to form the cell membrane.
Detailed explanation-4: -A mosaic protein is a protein that is made up of different protein domains, giving the protein multiple functions. These proteins have quaternary structures, as they are made up of multiple tertiary structured protein domains.
Detailed explanation-5: -Cell membranes are composed of proteins and lipids.