Vitamin A deficiency is the leading cause of preventable blindness in children.
It's defined as moderate and patients typically seek medical attention due to the symptoms they're experiencing.
The stretch of the integral protein within the hydrophobic interior of the bilayer is also hydrophobic, made up of non-polar amino acids. Like the lipid bilayer, the exposed ends of the integral protein are hydrophilic. When a protein crosses the lipid bilayer it adopts an alpha-helical configuration.
Compound Microscope
Some of the parts of a compound microscope are the eyepiece lens.<span> There are two knobs on under the other to one side of the microscope which are used for </span>Coarse focus and Fine focus. There is an<span> illuminator</span><span> at the bottom of the microscopic stand, which sheds a powerful light on the subject under the lens. Other parts include </span>objective lenses<span>, </span>stage with stage clips<span> (where the subject is placed) and r</span>evolving nosepiece. The<span> tube</span><span> connects the eyepiece lens to the </span>turret<span>.</span>
