Q1. Johnny, a five-year-old boy has been growing by leaps and bounds; his height is 100 percent above normal for his age. He has been complaining of headaches and vision problems. A CT scan reveals a large pituitary tumour. What hormone is being secreted in excess? What condition will Johnny exhibit if corrective measures are not taken; how would this affect his physical appearance? What is the possible cause of his headaches and visual problems?

Q2. What is the connection among ribosomes, endoplasmic reticulum, golgi apparatus and the plasma membrane? How do they work together in the system?