Answer:
Insular cortex
Explanation:
The insular cortex is found in the visceral sensory area and receives sensory input from the thalamus to the CNS. They play a role in emotions including self awareness, motor control etc and they also play a part in the regulation of the body's homeostasis.
Respiration, which is the opposite of photosynthesis
I believe it is called RNA Synthesis, or in other words RNA Transcription which is included in the replication of DNA.
Enzymes because they are proteins that act as catalysts within living cells. Catalysts increase the rate at which chemical reactions occur without being consumed or permanently altered themselves.
Hope this helps! Please correct me if I'm wrong :)