practice questions

Question 1

what is the electrolyte composition of saliva similar to when first secreted?

Answer 1

Plasma

Question 2

The pH buffering capacity of saliva is most dependant on?

Answer 2

Bicarbonate Concentration

Question 3

which muscle is not classed as a muscle of mastication but is still very much involved?

Answer 3

Digastric

Question 4

What is not a type of fungi and protozoa in the mouth

Answer 4

Porphyromonas Gingivalis

Question 5

The collagen fibres in the periodontal ligament are given different names according to their position and orientation. What are they?

Answer 5

Crestal Fibres
Horizontal Fibres
Apical Fibres
Oblique Fibres
Trans-septal Fibres (Inter-radicular)

Question 6

What are the main functions of lipids?

Answer 6

structural components of biological membranes

aid in lipid solubilisation

provide energy reserves

serve as vitamins and hormones

Question 7

what is the basic unit of carbohydrate called?

Answer 7

Monosaccharide

Question 8

what is present in DNA but absent in RNA

Answer 8

Uracil

Question 9

What percent of salivary proteins do mucins make up?

Answer 9

25%

Question 10

what role do fibroblasts play in the periodontium

Answer 10

responsible for producing and degrading the extra cellular matrix