An alkene is a hydrocarbon containing double bonds. An alkyne is a hydrocarbon containing triple bonds. Ethene, C 2 H 4, is an example of an unsaturated hydrocarbon with a double bond.ethyne (acetylene), C 2 H 2 is an example of an unsaturated hydrocarbon with a triple bond.thene, C 2 H 4, is an example of an unsaturated hydrocarbon with a double bond. ethyne (acetylene), C 2 H 2 is an example of an unsaturated hydrocarbon with a triple bond.
Mitochondria and chloroplasts are also surrounded by membranes, but they have unusual membrane structures â specifically, each of these organelles has two surrounding membranes instead of just one. The outer membrane of mitochondria and chloroplasts has pores that allow small molecules to pass easily.
C) In eukaryotic cells, internal membranes form membranous compartments called organelles. D) In eukaryotic cells, internal membranes contain proteins essential for metabolic processes. E) In eukaryotic cells, internal membranes standardize the internal environment of all cellular organelles. 23) You are told that the cells on a microscope slide are plant, animal, or bacterial. microscope and see cell walls and membrane-bound organelles.