Cell Structure Lab

Simplifications: field width is the width of the viewer, taken as 200,000 µm divided by the magnification (a 20 cm wide image). Resolution limits are typical values (light about 200 nm, TEM about 2 nm for biological samples, SEM about 5 nm). Blur from the light limit is exaggerated so you can see it on a small screen. Tissue, cell and organelle sizes are typical, not measured from one specimen. The pulse-chase model is a simple chain (rough ER → Golgi → secretory vesicles → duct) with rate constants chosen to match the classic pancreas timing; the chase clock runs fast.

Problems are randomly generated. Use π = 3.1416 (any value from 3.14 up is accepted). The worked solution shows units cancelling (struck through in red) and each step built line by line.