Glands Associated with Digestive System

Q. (b) How does water from the soil reach the leaves of a plant to be used in photosynthesis ?

Q.

What is the role of villi in digestion

Q.

Why is the inner wall of alimentary canal not digested although the digestive enzyme can digest all the materials that make cells?

Q. The gastric juice contains

1. trypsin, pepsin, lipase
2. pepsin, lipase, rennin
3. pepsin, rennin, carboxypeptidase
4. trypsin, pepsin, rennin

Q. In the process of digestion, the enzymes 'X' in the salivary gland and 'Y' in the pancreas are such that 'X' converts carbohydrate into maltose and 'Y' converts peptides into amino acids. Identify X and Y.

1. X - Trypsin, Y - Pepsin
2. X - Ptyalin, Y - Trypsin
3. X - Ptyalin, Y - Peptidases
4. X - Lipase, Y - Ptyalin

Q.

Question 31
Which is the first enzyme to mix with food in the digestive tract?

(a) Pepsin
(b) Cellulase
(c) Amylase
(d) Trypsin

Q.

Question 36
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 the absorption of digested food and water?

Q. Mention 2 structural features of small intestine which add to the absorptive cavity

Q. Both the crown and root of a tooth is covered by a layer of a bony hard substance called:

1. Enamel
2. Cementum
3. Bony socket
4. Dentine

Q. Identify the part of the digestive system where villi can be found.

1. 
2. 
3. 

Q.

Mention two types of Nutrition.

Q. Match the Following

1. Gastric glands
2. Pancreas
3. Gallbladder
4. Liver

Q. Which of the following nerves innervates alimentary canal?

1. Abducens
2. Trigeminal
3. Oculomotor
4. Vagus

Q.

Give the appropriate terms to the following statements:

(a) Any substance taken into the body for purpose of providing nutrition.

Q.

Which of the following organs does not produce any digestive juice?

1. Kidney

2. Pancreas

3. Stomach

4. Liver

Q. Choose the correct option regarding the following statements.
(i) The chemical process of digestion is initiated in the oral cavity.
(ii) Salivary amylase helps in the digestion of proteins.
(iii) Salivary gland is an an exocrine gland.

1. Only statement (i) is correct.
2. Only statement (i) and statement (ii) are correct.
3. Only statement (i) and statement (iii) are correct.
4. Only statement (iii) is correct

Q. Which of the following is vestigial teeth found in human?

1. Incisors
2. Premolars
3. Wisdom teeth
4. Diphyodont

Q. Match the Following

1. Gastric glands
2. Pancreas
3. Gallbladder
4. Liver

Q.

Bile helps in the emulsification of _______ .

1. fats
2. proteins
3. carbohydrates
4. vitamins

Q. Emulsification of fat globules is carried out with the help of _____.

1. bile
2. pepsin
3. HCl
4. trypsin

Q. _______ is an accessory gland found in the alimentary canal.

1. Liver
2. Small intestine
3. Rectum
4. Stomach

Q. The right and left atrium have chambers with ______.

1. spongy walls
2. spiral walls
3. thick walls
4. thin walls

Q. Crown of teeth is covered by:

1. Dentine
2. Enamel
3. Both A and B
4. Cementum

Q. The autotrophic mode of nutrition requires :

1. sunlight
2. all of the above
3. carbon dioxide and water
4. chlorophyll

Q. Identify the tissue:

(i) Cells are tightly packed without any space.
(ii) Cells are thick walled.
(iii) Cells of this tissue are dead.

1. Aerenchyma
2. Collenchyma
3. Parenchyma
4. Sclerenchyma

Q. Trypsin and lipase are produced by the pancreas and they breakdown and respectively.

1. carbohydrates
2. fats
3. protiens
4. minerals
5. vitamins

Q. Select the function of salivary amylase from the following options.

1. Breaks down protein into amino acids
2. Breaks down fat globules into smaller fat droplets
3. Breaks down protein into peptides
4. Breaks down complex sugar into simple sugar

Q. Synthesis of urea takes place in the ________.

1. pancreas
2. liver
3. small intestine
4. kidneys

Q. The right and left atrium have chambers with ______.

1. spongy walls
2. spiral walls
3. thick walls
4. thin walls