Functions of Buccal Cavity and Oesophagus

Q.

Salivary amylase is activated by which ion?

Q. Name the enzyme responsible for the first breakdown of starch into maltose.

1. Salivary amylase
2. Lactase
3. Maltase
4. Pancreatic amylase

Q. Name the enzyme responsible for the first breakdown of starch into maltose.

1. Salivary amylase
2. Lactase
3. Pancreatic amylase
4. Maltase

Q.

Where is the first place digestion occurs?

Q.

Name a starch digesting enzyme.

Q. Briefly explain the role of saliva in the digestion of food.

Q. The oesophagus and the lining of the mouth are covered with

आहारनली और मुँह का अस्तर ढ़का होता है

1. Cuboidal epithelium
   
   घनाकार एपिथीलियम से
   
2. Squamous epithelium
   
   शल्की एपिथीलियम से
   
3. Columnar epithelium
   
   स्तंभाकार एपिथीलियम से
   
4. Glandular epithelium
   
   ग्रंथिल एपिथीलियम से
   

Q. Which of the following statement is incorrect?

1. Molars help in cutting and piercing the food.
2. HCl present in the stomach kills the bacteria present in food.
3. Mucus protects inner lining of the stomach from the HCl.
4. Dental formula for adult humans is 2123/2123.

Q. The dental formula for human beings is .

1. 2.1.2.3
2. 2.2.1.3
3. 1.2.3.1
4. 1.2.3.4
5. 2.1.2.2

Q.

Which type of teeth are used by carnivores for tearing flesh?

1. Canines

2. Premolars

3. Molars

4. Incisors

Q. Many tissues organise to form an _____.

1. organ
2. organ system
3. organelle
4. organism

Q. Oesophagus contracts to push food into the stomach.

1. True
2. False

Q. is essential for regulated movement of food in the oesophagus.

1. Excretion
2. Osmosis
3. Peristalsis
4. Digestion
5. Diffusion

Q. A group of organs working together to perform a specific function is called an ____.

1. Muscular System
2. Cellular System
3. Organization
4. Organ system

Q. Which of the following is/are the characteristic(s) of a living being?

1. Reproduction
2. Excretion
3. Respiration
4. Growth

Q. The rhythmic contraction and relaxation of muscles in the alimentary canal is known as ____ .

1. paralysis
2. peristalsis
3. osmosis
4. reflex

Q. The nature of digestive tract in different vertebrates vary based on their _______ .

1. lifestyle
2. feeding habits
3. body structure
4. habitat