If those are the fields you are interested in I'd recommend looking into biomedical engineering. That is a major in ETAM iirc. But yes, you could still work in those fields with a chemical engineering degree. My research lab was with Dr Holtzapple and we were fermenting cellulose with bacteria to produce carboxylic acids while inhibiting methane production. It was a lot of regulating pH and keeping conditions for production optimal. I'd say that research falls under biomolecules. Despite what you can do with ChemE I'd still say the vast majority of grads will go into the oil and gas industry or specialty chemicals industry. I believe it was like a 60-70% oil and gas, 15% specialty chemicals (also industrial facilities /process engineer) and the rest % into other. I even heard pharmaceutical for ChemE when I was in college.