Answer:
Spikes are found on some viruses. They are very consistent in structure and can be used for identification.
Explanation:
Viruses have varied structures. A virus particle is composed of DNA or RNA that is inside a protective layer of protein called a capsid. The shape of the capsid can vary from one type of virus to another. The capsid is composed of proteins that are encoded by viral genes within the virus genome.
Selective permeability is when a cell membrane allows some molecules or ions to pass through it, but not others.
Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant. Chloroplasts capture light energy from the sun to produce the free energy stored in ATP and NADPH through a process called photosynthesis.
State of demographic transition of all countries dictates the growth rate of global population and how close we are to carrying capacity
The bilayer of the plasma membrane is similar to the bilayer formed by phospholipids when they self-assemble.
<h3>Does the primary structure of the cell membrane consist of phospholipids?</h3>
The basic structure of the plasma membrane is a bilayer of phospholipids. Being amphipathic, or having both hydrophilic and hydrophobic areas, makes them ideal for this function. Hydrophilic heads and hydrophobic tails are visible in the chemical structure of phospholipids.
<h3>Why are phospholipids present in the plasma membrane?</h3>
The main lipids in membranes, phospholipids, are made up of lipid bilayers. Furthermore, it allows numerous cellular processes to take place in subcellular compartments while serving as a barrier to guard the cell against various environmental disturbances.
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