There are three types of unsaturated hydrocarbons: alkenes, alkynes and aromatic hydrocarbons. Alkenes have one or more carbon-carbon double bond. Alkynes have one or more carbon-carbon triple bond, and aromatic hydrocarbons have a benzene or aromatic ring in their structure.ydrocarbons are compounds that only consist of the elements hydrogen and carbon. In this lesson, we will focus on one type of hydrocarbon: unsaturated hydrocarbons, and its three types-alkenes, alkynes and aromatic hydrocarbons.
In eukaryotes the organelles of the endomembrane system include: the nuclear membrane, the endoplasmic reticulum, the Golgi apparatus, lysosomes, vesicles, endosomes and the cell membrane.
The dual membrane, surrounding the nucleus of eukaryotic cells, is called the endoplasmic reticulum. Related Information: The Endoplasmic reticulum is composed of an inner â¦ , rough, and an outer, smooth, membrane. It surrounds the most intimate nuclear enclosure, the nuclear membrane.he dual membrane, surrounding the nucleus of eukaryotic cells, is called the endoplasmic reticulum. Related Information: The Endoplasmic reticulum is composed of an inner â¦ , rough, and an outer, smooth, membrane. It surrounds the most intimate nuclear enclosure, the nuclear membrane.