You would not be able to digest your food properly.
In space, without oxygen or bacteria, decomposition would not occur. A dead body in a suit would be well preserved due to the extreme cold temperatures and lack of oxygen, essentially mummifying it. Without a suit, the body would be exposed to radiation and extreme temperatures, causing it to freeze-dry and mummify as well.
Without enzymes your body would process more slowly.
Without a heart pumping blood throughout the body, a person would die.
If we were to completely eliminate all bacteria from the world, ecosystems would collapse as they play crucial roles in nutrient cycling and decomposition. Additionally, humans and other animals rely on certain bacteria for digestion and immune system function. Overall, the absence of bacteria would have severe and widespread negative consequences on life on Earth.
Without microorganisms, we would die very quickly. For every 1 "human" cell in your body, there are about 10 "other" microorganisms in and on your body. Every aspect of life revolves around microorganisms, such as bacteria and fungi, essential to every aspect of life. Without microorganisms, everything would cease to exist.
It would simply cease to work.
We would slowly wither away and die of bacteria and viruses that probably would not even hurt a goldfish.
If all bacteria in your body were killed, it would disrupt essential processes such as digestion, immune system function, and vitamin synthesis. This could lead to serious health consequences and complications. Additionally, your body relies on a balance of healthy bacteria to maintain overall health and well-being.
Homeostasis keeps your body stable even when things outside your body changes. This means without your homeostasis you will not survive!
You wouldn't live. You wouldn't even get "sick". Without any immune system at all, your body would just rot as the bacteria and fungi ate it.
The integumentary system is supposed to regulate internal temperature. Without it, the body's cellular habitat will be unlivable, and the body will undergo chaos on a cellular level. The body will not survive long without it.
Without organization there can be no cooperative activity, it would be each cell for itself. Rather than having a body, I would just have a large mass of competing microorganisms.