Question

I) FILL IN THE BLANKS (10 x 1)
1.The process in which complex food is broken down into simple, water soluble substances
is called___________________________________
2.Digestive tract & ____________________ together constitute the digestive system.
3.The set of teeth that grows during infancy is called ____________________________
4.Common passage for food & air is _____________________________
5.The pushing down of food due to mythmic contraction & relaxation of wall of alimentary
canal is called_____________________
6._____________________are finger like outgrowth in inner walls of small intestine.
7._________________is the part of stomach in ruminants where food is stored temporarily.
8._________________is large sac between small & large intestine where cellulose of food is
digested.
9.___________________is the largest gland in human body.
10.______________is the enzyme present in saliva which acts on starch of food.
II) ANSWER THE FOLLOWING (5 x 2)
1. What is Digestion?
2. Where is the bile produced? Which component of the food does it digest?
3. Name the type of carbohydrate that can be digested by ruminants but not by humans.
Give the reason also.
4. Write one similarity and one difference between the nutrition in amoeba and human
beings.
5. What is Absorption? 6. Why do we get instant energy from glucose? 7. What is salivary
digestion?
8. What are parasites?
9. Name the various digestive organs of man?
10. What is cellulose
III) ANSWER THE FOLLOWING (5 x 3)
1. What are villi? What is their location and function?
2. Why do we get instant energy from glucose?
3. Can we survive only on raw, leafy vegetables/grass? Discuss.
4. Where are the salivary glands located and what is their functions?
5. Explain the term Assimilation, Pseudopodia
IV) ANSWER THE FOLLOWING (3 x 5)
1.Explain the nutrition in Amoeba with the help of a diagram?
2. Explain about the different kinds of teeth and their function in human beings?
3.Write the functions of the following organs in the digestive system: mouth, stomach, liver,
small intestine, pancreas

Answer 1

Answer:

1)-- Digestion

2)-- Glands, like liver, pancreas, gall bladder

3)-- wisdom teeth

4)-- oropharynx

5)-- peristalsis

6)-- villi

7)-- rumen

8)-- caecum

9)-- liver

10)-- amylase

please mark it as brainliest so that you will get points

Answer 2

Answer:

II) :- 1- Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma.

2:- Bile juice produced from liver.

3:- Cellulose.

4:- • Similarity: The digestive juices in amoeba are secreted into food vacuole and in human beings, the digestive juices are secreted in the stomach and small intestine. •Difference: Amoeba captures the food with the help of pseudopodia and engulfs it. In human beings food is taken by the mouth.

5:- Absorption refers to the movement of nutrients, water and electrolytes from the lumen of the small intestine into the cell, then into the blood.

6:- Glucose is a simple sugar. It easily breaks down in the cell with the help of oxygen and provides instant energy to the organism. Glucose does not need digestion, it is directly absorbed into the blood. Hence, when glucose is directly taken, it does not get digested and acts as an instant source of energy.

7:- The digestive functions of saliva include moistening food, and helping to create a food bolus, so it can be swallowed easily. Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before food reaches the stomach.

8:- Parasites are those organism who is depend upon dead decaying matter.

9:- Buccal cavity, oesophagus, salivary gland, stomach, pancreas, illeum, large intestine, anus etc.

10:- Cullose is a component which only digested in ruminants.