Salivary Glands

Q. With reference to a normal human being, which one of the following statements is not correct?

1. Human saliva is slightly alkaline
2. Saliva is secreted by six pairs of salivary glands in human beings
3. An adult human may secrete 1 to 1.5 L of saliva per day
4. The salivary enzyme (ptyalin) breaks down cooked starch into maltose

Q. Which among the following enzymes is secreted in the mouth?

1. Trypsin
2. Pepsin
3. Amylase
4. Nitrogenase

Q. In human beings, the three pairs of salivary glands produce about

1. $1.0d{m}^3$ of saliva per day
2. $1.5d{m}^3$ of saliva per day
3. $2.0d{m}^3$ of saliva per day
4. $2.5d{m}^3$ of saliva per day

Q.

Saliva in the mouth converts ________ into _________ .

1. proteins, amino acids

2. glycogen, glucose

3. starch, maltose

4. fats, vitamins

Q. Choose the correct option regarding the following statements.
(i) The chemical process of digestion is initiated in the oral cavity.
(ii) Salivary amylase helps in the digestion of proteins.
(iii) Salivary gland is an an exocrine gland.

1. Only statement (i) is correct.
2. Only statement (i) and statement (ii) are correct.
3. Only statement (i) and statement (iii) are correct.
4. Only statement (iii) is correct

Q. Select the function of salivary amylase from the following options.

1. Breaks down protein into amino acids
2. Breaks down fat globules into smaller fat droplets
3. Breaks down protein into peptides
4. Breaks down complex sugar into simple sugar

Q. Which of the following is a function of saliva?

1. Helps you to digest food.
2. Helps you to smell food.
3. Helps you to talk.
4. Helps you to hear.

Q. Find the location(s) of the salivary glands from the options given below.

1. Above the tongue
2. Below the tongue
3. In front of the ears
4. Back of the ears

Q.

Question 31
Which is the first enzyme to mix with food in the digestive tract?

(a) Pepsin
(b) Cellulase
(c) Amylase
(d) Trypsin

Q.

Name the enzyme present in human saliva. What type of food material is digested by this enzyme ?