Peristalsis

Q.

Aditya was kidnapped and hung upside down. The kidnappers tried feeding him and Aditya was surprised that he could eat the food by defying gravity and wondered what is wrong with his body. Which of the below phenomenon is responsible for this behaviour?

1. Reverse osmosis

2. Regurgitation

3. Osmosis

4. Peristalsis

Q.

Define the following terms :

(a) Peristalsis

(b) Omnivore

(c) Pylorus

(d) Kilocalorie

(e) Basal metabolic rate

Q.

We eat food composed of all the nutrients like carbohydrates, proteins, fats, vitamins, minerals and water. After digestion, these are absorbed in the form of glucose, amino
acids, fatty acids, glycerol etc. What mechanisms are involved in absorption of digested food and water?
Explain why when a person takes a concentrated solution of salt, after some time, he starts vomiting.
What is the phenomenon responsible for such situation? [5 MARKS]

Q.

What is the difference between segmentation and peristalsis?

Q. What causes the movement of food inside the alimentary canal?

1. Pericardium
2. Peristalsis
3. Rhythmic contraction and relaxation of heart
4. Pumping

Q. What is peristalsis? How does it help in digestion.

Q.

What is peristalsis?

Q. In the food pipe, the food bolus is propelled into the stomach by peristaltic movement. Represent this action with a diagram.

Q. What is peristalsis? Mention its role in digestion?

Q. Peristaltic movements found in different parts of alimentary canal. In which one of these there is least peristalsis?

1. Stomach
2. Duodenum
3. Rectum
4. Oesophagus

Q. The process involved in passage of food in the alimentary canal is

1. Egestion
2. Digestion
3. Peristalsis
4. Defaecation

Q. Movement of food in digestive tract is due to

1. Concentration gradient
2. Secretions
3. Peristalsis
4. Villi

Q. Muscular contraction of alimentary canal is known as

1. Swallowing
2. Deglutition
3. Peristalsis
4. Churning

Q. Peristalsis is because of ________________.

1. Contraction of longitudinal muscles
2. Digestive secretions
3. Contraction of circular muscles
4. Under control of autonomous nervous system

Q. What causes movement of food inside the alimentary canal?

Q. Reverse peristalsis is seen in

1. Tiger
2. Squirrel
3. Cow
4. Cat

Q.

The food goes down the oesophagus by:

1. Muscular movement

2. Peristaltic movement

3. Passive movement

4. Epistatic movement

Q. Aditya was kidnapped and hung upside down. The kidnappers tried feeding him and Aditya was surprised that he could eat the food by defying gravity and wondered what is wrong with his body. Which of the below phenomenon is responsible for this behaviour?

1. Osmosis
2. Regurgitation
3. Peristalsis
4. Reverse osmosis

Q. Define the following terms :
(i) Peristalsis
(ii) Omnivore
(iii) Pylorus
(iv) Kilocalorie
(v) Basal metabolic rate