Digestion

Q. The process of breakdown of complex food substances into simpler absorbable forms is called ____.

1. excretion
2. digestion
3. ingestion
4. absorption

Q. A is the unit for measuring the amount of energy in food.

1. Kilogram
2. Celsius
3. Calorie

Q.

Question 18
Following statements describe the five steps in animal nutrition. Read each statement and give one word for each statement. Write the terms that describes each process.

(a) Transportation of absorbed food to different parts of body and their utilisation.

(b) Breaking of complex food substances into simpler and soluble substances.

(c) Removal of undigested and unabsorbed solid residues of food from the body.

(d) Taking food into the body.

(e) Transport of digested and soluble food from the intestine to blood vessels.

Q.

Name the following
Disease caused by deficiency of Iron

Q.

What is caused due to deficiency of iodine?

Q.

Name the disease caused by Vitamin C deficiency. What are the sources of this Vitamin ? [ 2 MARKS ]

Q.

What are ruminants? How do they digest cellulose? [3 MARKS]

Q.

Animals store energy in the form of ______.

1. Vitamins

2. Glycogen

3. Fats

4. Carbohydrates

Q.

Absorption of nutrients present in the food takes place in the ________.

1. mouth
2. small intestine
3. stomach
4. large intestine

Q. Scurvy is caused by the deficiency of:

1. Vitamin C
2. Vitamin D
3. Vitamin A
4. Vitamin B

Q.

Which of the following helps in the digestion of fat?

1. Pancreatic juices

2. Bile

3. Enzymes

4. Intestinal juices

Q. The process by which food is broken down into essential nutrients is called

1. ingestion
2. respiration
3. digestion

Q. a) What are the functions of vitamin C and vitamin D?

b) Name the diseases caused due to their deficiency.

Q.

Name the five main processes involved in holozoic type nutrition.

Q.

What are ruminants?

Q. What is Caecum in Ruminant's digestive?

Q.

Which of the following glands secrete digestive juices?

1. Salivary glands

2. Liver

3. Pancreas

4. Lungs

Q.

What are the diseases caused by a lack of minerals?

Q. Define Ruminants.

Q.

In which organ does fat gets digested completely

Q. Grass eating animals swallow the food quickly and store it in rumen.
True or False?

1. True
2. False

Q.

An adult labourer doing heavy physical work needs about ___________ calories per day.

1. 2200

2. 1800

3. 900

4. 3500

Q. Read the following passage carefully and answer the questions that follow it. Bile juice is stored in a sac called, gallbladder, located near its organ of secretion, the liver. The gallbladder releases the bile juice into the small intestine whenever food reaches there. Though bile juice is devoid of any digestive enzymes, it is required for the digestion of fats. The fats cannot be digested easily because they are insoluble in water and are present as large globules. Bile juice breaks down big fat droplets into smaller droplets. These are then easily digested by the enzymes released from the pancreas.

(a) Which organ secretes the bile juice?
(b) Why is digestion of fats difficult as compared to that of other nutrients?
(c) How does bile juice help in the digestion of fat?
(d) Where is the digestion of fat completed?
(e) Does bile juice digest fat completely?

Q.

The bile helps in the digestion of ___

1. Proteins

2. Vitamins

3. Fats

4. Carbohydrates

Q.

Where is methanogen found in ruminant animals?

Q. Digestion of food starts in and gets completed in _____________.

Q. Calories

Q. How is the dentition of a ruminant different from that of a human? [3 MARKS]

Q.

Which of the following gland(s) secrete(s) digestive juices?

1. Salivary glands

2. Liver

3. Pancreas

4. Thyroid

Q.

Question 8
Why do we get instant energy from glucose?