Saliva A. From different salivary glands has a similar composition.

Question 1

Saliva

A. From different salivary glands has a similar composition.

B. Contains enzymes essential for the digestion of carbohydrates.

C. Has less than half the ionic calcium level of plasma.

D. Has more than twice the iodide level of plasma.

E. Has a pH between 5 and 6.

Question 2

A. False Serous glands such as the parotids produce a watery juice; mucous glands such as the sublinguals produce a thick viscid juice.

B. False The functions of salivary amylase (ptyalin) can be affected by enzymes from other digestive glands.

C. False It is saturated with calcium ions; calcium salts are laid down as plaque on the teeth.

D. True Saliva is an important route of iodide excretion; its concentration in saliva is 20–100 times that in plasma.

E. False Saliva has a neutral pH; acidity in the mouth tends to dissolve tooth enamel.

Sudhakar · Answer 1 · 2019-10-29T04:46:29+0000

A. False Serous glands such as the parotids produce a watery juice; mucous glands such as the sublinguals produce a thick viscid juice.

B. False The functions of salivary amylase (ptyalin) can be affected by enzymes from other digestive glands.

C. False It is saturated with calcium ions; calcium salts are laid down as plaque on the teeth.

D. True Saliva is an important route of iodide excretion; its concentration in saliva is 20–100 times that in plasma.

E. False Saliva has a neutral pH; acidity in the mouth tends to dissolve tooth enamel.

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