The process by which microorganisms attach themselves to cells is :
a. Infection
b. Contamination
c. Disease
d. Adhesion

Verified step by step guidance

1. Understand the definitions of each term given in the options to identify which best describes the process of microorganisms attaching to cells.
2. Infection refers to the invasion and multiplication of microorganisms within the host, which occurs after attachment but is not the attachment itself.
3. Contamination means the presence of microorganisms on a surface or object, not necessarily involving attachment to cells.
4. Disease is the result of infection causing damage or dysfunction in the host, which happens after microorganisms have attached and multiplied.
5. Adhesion is the specific process where microorganisms attach themselves to host cells, often the first step in colonization and infection.

Key Concepts

Microbial Adhesion

Adhesion is the process by which microorganisms attach themselves to host cells or surfaces. This initial step is crucial for colonization and infection, as it allows microbes to resist removal and establish themselves in a specific environment.

Infection

Infection occurs when microorganisms invade and multiply within host tissues, potentially causing harm. It follows adhesion and involves overcoming host defenses, leading to disease symptoms if the immune response is insufficient.

Contamination vs. Disease

Contamination refers to the presence of microbes on surfaces or objects without necessarily causing harm, while disease is the result of infection that impairs normal body functions. Understanding these distinctions helps clarify the stages from microbial presence to illness.