Ventricular septal defect (VSD), atrial septal defects, and tetralogy of Fallot are the most common congenital heart defects seen in the VACTERL association. Less common defects in the association are truncus arteriosus and transposition of the great arteries.
Photosynthesis takes place inside plant cells in small things called chloroplasts. Chloroplasts (mostly found in the mesophyll layer) contain a green substance called chlorophyll.Below are the other parts of the cell that work with the chloroplast to make photosynthesis happen.Structure of a mesophyll cell.hloroplasts (mostly found in the mesophyll layer) contain a green substance called chlorophyll. Below are the other parts of the cell that work with the chloroplast to make photosynthesis happen.
Chloroplast. Photosynthesis occurs in eukaryotic cell structures called chloroplasts. A chloroplast is a type of plant cell organelle known as a plastid. Plastids assist in storing and harvesting needed substances for energy production.A chloroplast contains a green pigment called chlorophyll, which absorbs light energy for photosynthesis. Membrane Envelope-contains an inner and outer membranes that act as protective coverings and keep chloroplast structures enclosed. 2  Thylakoid Membrane-internal membrane system consisting of flattened sac-like membrane structures called thylakoids that serve as the sites of conversion of light energy to chemical energy.