MCQ IN MEDICINE

Detailed explanation-1: -The agents that cause disease fall into five groups: viruses, bacteria, fungi, protozoa, and helminths (worms). Protozoa and worms are usually grouped together as parasites, and are the subject of the discipline of parasitology, whereas viruses, bacteria, and fungi are the subject of microbiology.

Detailed explanation-2: -FALSE. Most microbes either help human health or do not affect people’s health one way or the other. Of the millions of types of microbes in the world, only a few make us sick.

Detailed explanation-3: -Most bacteria won’t hurt you-less than 1 percent of the different types make people sick. Many are helpful. Some bacteria help to digest food, destroy disease-causing cells, and give the body needed vitamins.

Detailed explanation-4: -Infections and disease are not the same. An infection occurs when bacteria, viruses, or other pathogens invade the body and begin to multiply. This is the first step to a disease condition. Disease occurs when the cells of your body are damaged from the invading pathogens and regular cell processes are disrupted.