though I think it's chemistry and biology rather than some hard to understand physics like quantum mechanics, as Roger Penrose believes. We may sometime in the very distant future figure out how to make consciousness in the lab through a biological process, but we'd still not know how it happens. That's partly why some, like Roger Penrose, are looking outside the box for answers. I guess I'm doing the same.
I think, since consciousness has to influence how our brains operate, which work through biology, consciousness must work through biology also. Evolution evolved consciousness over hundreds of millions of years by evolving our brains, which allows complex animated creatures to exist.
In my view, consciousness is what is capable of experiencing sensations, feelings, and thoughts. We're conscious to experience positive and negative feelings which force our brains to think, do, remember, and learn. The strongest feeling at the moment gets the attention which further drives the brain. Our brains attach (associate) our feelings to (with) our thoughts and sensual experiences in the conscious mind, which allow our feelings to further drive our thoughts and actions. This is mostly a very subtle and automatic process that we're barely aware of, but we must be conscious for it to work and it must work in the biological brain. So I'd say that consciousness is biology.