Solution:
Two organelles that are double membrane-bound are i) Mitochondria ii) Chloroplasts
Characteristics of mitochondria
The mitochondrion is a double membrane-bound structure, with the outer and inner membranes partitioning the lumen into two aqueous compartments, the outer and inner compartments, respectively.
- Mitochondria is semi-autonomous as they possess their own DNA.
- Mitochondria is the place of aerobic respiration.
Characteristics of Chloroplasts
- They can be found in plants and euglenoids, with a variety of shapes in lower plants and a disc-shaped shape in higher plants.
- They contain particular pigments that give the plants’ leaves colour.
- Chloroplasts have their own DNA; pigments help to capture sunlight, which aids photosynthesis; and thylakoids are membrane-flattened sacs found in their matrix. Thylakoids are stacked in some places and are known as gana.