Another structure that also breaks down
substance into smaller things is the peroxisome.
But unlike the lysosome, the peroxisome is going
to use oxygen to oxidize these organic substances
and break them down so that they
can be used for cellular processes.
In another structure in a cell, that's going to break down
larger substances into smaller substances is the proteasome.
The proteasome however, specifically
breaks down proteins and usually is used
for destroying unneeded damaged
or faulty proteins into smaller peptides
that can then be reused
to make new proteins.
The next organelle is the mitochondria.
Now the mitochondria is not a
part of the endomembrane system
and it's actually hypothesized to be a bacterial cell
that created a symbiotic relationship with our cells
and now are part of our cells where they
used to live as an a separate organism.
And the reason why we think that is
because the mitochondria have their own DNA,
they have their own ribosomes, they're
able to undergo their own replication
completely separate from the processes
that are occuring in the rest of the cell.
Mitochondria are extremely important
because this is how we get our energy.
ATP or the molecule that we use for the
majority of the energy that we use in our body
is made in the
mitochondrial part of the cell.