Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities.
Aphasia affect the comprehension of speech and the power to write or read.
Aphasia is commonly seen in older individuals which can be due to the injury to the brain. It can also be caused due to the brain tumors, brain trauma or from infections.
Aphasia can be very serious so that communication with the patient can be impossible or it can be mild.