Which of the following describes an iatrogenic disease?

Iatrogenic disease was defined as a disease induced by a medicine prescribed by a physician; or after a medical or surgical procedure, excluding intentional overdose, nonmedical intervention; or unauthorized prescription, and environmental events (falls, equipment defect).

What infection attacks an individual already weakened by disease?

An infection that takes hold because the host has been compromised (weakened) by disease is described as an op- portunistic infection. For example, people with depressed immune systems, such as those with AIDS, become in- fected with organisms that are ordinarily harmless.

What enables bacteria to swim rapidly?

Many bacteria are motile and use flagella to swim through liquid environments. The basal body of a bacterial flagellum functions as a rotary molecular motor, enabling the flagellum to rotate and propel the bacterium through the surrounding fluid.

What is iatrogenic harm?

Iatrogenic harm refers to the harm caused inadvertently by the process of treatment.

What is iatrogenic disease and how do they occur?

Iatrogenic disease is the result of diagnostic and therapeutic procedures undertaken on a patient. With the multitude of drugs prescribed to a single patient adverse medicine reactions are bound to occur. The Physician should take suitable steps to detect and manage them.

How do bacteria use flagella?

Flagellum is primarily a motility organelle that enables movement and chemotaxis. … In addition to motility, flagella possess several other functions that differ between bacteria and during the bacterial life cycle: a flagellum can, for example, participate in biofilm formation, protein export, and adhesion.

What is flagella function?

The primary function of a flagellum is that of motility. In some bacteria the flagellum can also function as a sensory organelle, being sensitive to wetness, chemicals, and temperatures outside the cell. Flagella are organelles defined by function rather than structure.

How does a bacterium eat?

Bacteria feed in different ways. Heterotrophic bacteria, or heterotrophs, get their energy through consuming organic carbon. Most absorb deceased organic material, such as decomposing flesh. Some of these parasitic bacteria eliminate their host, while others help them.

Do all bacteria have ribosomes?

Ribosomes – Ribosomes are microscopic “factories” found in all cells, including bacteria. They translate the genetic code from the molecular language of nucleic acid to that of amino acids—the building blocks of proteins.

What is the function of cell wall?

A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane. It can be tough, flexible, and sometimes rigid. It provides the cell with both structural support and protection, and also acts as a filtering mechanism.

What contains nucleoid?

The bacterial genome is present in the cell within a complex structure, the nucleoid. The nucleoid contains the genomic DNA, and molecules of RNA and proteins. The main proteins of the nucleoid are: RNA polymerase, topoisomerases and the histone-like proteins: HU, H-NS (H1), H, HLP1, IHF and FIS.

What is Glycocalyx made up of?

glycoproteins
The glycocalyx, which is located on the apical surface of endothelial cells, is composed of a negatively charged network of proteoglycans, glycoproteins, and glycolipids.

Do all bacteria flagella?

The flagella facilitate movement in bacteria. Bacteria may have one, two, or many flagella—or none at all.

What is cytoplasm function?

Cytoplasm. The cytoplasm is the gel-like fluid inside the cell. It is the medium for chemical reaction. It provides a platform upon which other organelles can operate within the cell. All of the functions for cell expansion, growth and replication are carried out in the cytoplasm of a cell.

Is murein a peptidoglycan?

Peptidoglycan or murein is a polymer consisting of sugars and amino acids that forms a mesh-like peptidoglycan layer outside the plasma membrane of most bacteria, forming the cell wall. … Peptidoglycan is also involved in binary fission during bacterial cell reproduction.

What is Fimbriae microbiology?

Fimbriae are long filamentous polymeric protein structures located at the surface of bacterial cells. They enable the bacteria to bind to specific receptor structures and thereby to colonise specific surfaces.

What’s the meaning of glycoprotein?

Definition of glycoprotein

: a conjugated protein in which the nonprotein group is a carbohydrate.

How do antibiotics affect Peptidoglycans?

Many antibiotics, including penicillin, work by attacking the cell wall of bacteria. Specifically, the drugs prevent the bacteria from synthesizing a molecule in the cell wall called peptidoglycan, which provides the wall with the strength it needs to survive in the human body.