Give reason why bacteria regarded as our foes and friends
Answers
Answer:
Bacteria helped shaped the world as we know it today. You can find them almost everywhere – on doorknobs, in the depths of the ocean and, naturally, in our bodies. There are billions of bacteria in the human body. They function like a fully-fledged organ and we have almost as many of them as we do cells. While most are essential for our health, not all bacteria are our allies. Some types, called pathogenic bacteria, cause infectious diseases that can range from a simple sore throat to a life-threatening case of septic shock.
Explanation:
Bacteria serve a metabolic purpose. For example, through a process of fermentation, they break down indigestible food residue, such as fibre, into useful components the body can absorb. They can also produce energy substrates like fatty acids and vitamins K and B12,” says the researcher. Bacteria also stimulate the immune system and make the body more resistant. A pathogenic micro-organism, such as a fungus or bacteria, must first fight against the body’s local flora to colonise the environment. These endogenous bacteria are, so to speak, our allies.
However, there are also bacteria that are pathogenic to the human body. These bacteria can cause disease.