Question

(i). Name the structure depicted above and mention its role in lungs  

(ii). Wht is ATP and how is it formed?                

(iii). What is caused by dental caries and how does it begin?​

Answer 1

Answer:

In spite of a knowledge explosion in cariology science, dental caries still remains a misunderstood phenomenon by the clinicians. In order to effectively use the wide range of preventive and management strategies, it is imperative to look beyond those black and white spots that manifest on the tooth surfaces. This paper focuses on the revised versions of the etiopathogenesis and definition of dental caries disease in the present century.

Keywords: Dental caries, biofilm, dental plaque, demineralization, remineralization, ecological plaque hypothesis, oral fluid, sucrose, cariogenic, S. mutans, Lactobacilli

Answer 2

Answer:

1. The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic.
2. The Adenosine triphosphate (ATP) molecule is the nucleotide known in biochemistry as the "molecular currency" of intracellular energy transfer; that is, ATP is able to store and transport chemical energy within cells. ATP also plays an important role in the synthesis of nucleic acids.
3. The weakened enamel then collapses to form a cavity and the tooth is progressively destroyed. ... Dental caries is caused by the action of acids on the enamel surface. The acid is produced when sugars (mainly sucrose) in foods or drinks react with bacteria present in the dental biofilm (plaque) on the tooth surface.