Report Abuse. A lysosome is like the cleanup crew of the cell. One of its functions is the digestion of lipids, carbohydrates, and proteins into small molecules that can be used by the rest of the cell. Lysosomes are also involved in the breakdown of organellesthat have outlived their usefulness. Source(s): My biology book :).
What is spinal muscular atrophy (SMA)? SMA is a rare genetic neuromuscular disease that affects the part of the nervous system that controls voluntary muscle movement. In spinal muscular atrophy, there is a loss of important cells in the spinal cord called motor neurons, which are essential for muscle strength and movement.
SMA type III is a less severe form of the disease. In rare cases, SMA begins in adulthood. This is the mildest form of the disease. A family history of spinal muscular atrophy in an immediate family member (such as brother or sister) is a risk factor for all types of the disorder. Symptoms of SMA are: Infants with SMA type I are born with very little muscle tone, weak muscles, and feeding and breathing problems.