Mouth

Q. What is the role of saliva in digestion of food ?

Q.

Question 9 (ii)
Which part of the digestive canal is involved in:
(ii) chewing of food __.

Q.

What is the dental formula of a rabbit?

Q.

Saliva converts________ into _________.

1. Glycogen into glucose

2. Starch to sugar

3. Fats into Vitamins

4. Proteins into amino acids

Q. Starch digesting enzymes are produced in

1. salivary gland and liver
2. stomach and pancreas
3. salivary gland and pancreas
4. stomach and liver

Q.

Identify the error(s) in the given statement:

Tongue is a fleshy muscular organ free at the back of buccal cavity and attached in the front.

Q. 200 taste buds are present on human tongue.

1. True
2. False

Q.

Saliva converts___ into maltose.

Q.

The process of digestion of food in humans begins in :
(a) stomach (b) food pipe (c) mouth (d) small intestine

Q.

An adult human has______ (28/32)teeth and a a child like you will have________(28/24) in number.

Q.

Q.

The___ contains the tongue, teeth and salivary glands.

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

Q. 200 taste buds are present on human tongue.

1. True
2. False

Q.

Give the dental formula of Rabbit .

Q.

We know how a solid food gets digested in our stomach. What happens to the water we drink? Is the drinking of water also called digestion in our tummy?!

Q. If salivary amylase is lacking in the saliva, which of the following events in the mouth will be affected?

1. Protein breakdown into amino acids.
2. Starch breakdown into maltose.
3. Fats breakdown into fatty acids and glycerols.
4. Absorption of vitamins.

Q. Which papillae is present on lateral side of the tongue?

1. Filiform
2. Vallate
3. Fungiform
4. Foliate

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

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

Q. What is the role of saliva in the digestion of food?

Q. Which is the common passage for food and air?

1. Pharynx
2. Epiglottis
3. Larynx
4. Nasal cavity

Q. Which part of the alimentary canal is involved in the chewing of food?

1. Stomach
2. Oesophagus
3. Small intestine
4. Buccal cavity

Q. Are all types of taste buds in the tongue present uniformly all around or one type of taste buds are found in a particular place in the tongue ?

Q. Man bears $4$ kinds of teeth from front to the back of the jaw. Choose the correct order from the following.

1. (i)- Incisor, (ii)- Canine, (iii)- Premolars, (iv)- Molars
2. (i)- Molars, (ii)- Canine, (iii)- Premolars, (iv)- Incisor
3. (i)- Molars, (ii-) Canine, (iii)- Incisor, (iv)- Premolars
4. (i)- Incisor, (ii)- Premolars, (iii)- Molars, (iv)- Incisor

Q. The incisor tooth is meant for

1. Chewing
2. Biting and cutting
3. Munching and chewing
4. Munching

Q. A baby boy aged two years is admitted to play school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?

1. Molars
2. Incisors
3. Canines
4. Pre-molars

Q.

The process of digestion of food starts in the mouth.

1. True

2. False

Q. Burst the bubbles containing the organs that are directly involved in the digestion of food.

1. Pancreas
2. Liver
3. Stomach
4. Heart
5. Lungs
6. Small intestine
7. Large intestine
8. Mouth

Q. Which of the following organ helps in tasting of food?

1. Tongue
2. Lips
3. Oesophagus
4. Nose

Q. Mention if the following statements are true (T) or false (F):
Saliva contains a protein-digesting enzyme

1. True
2. False