Small Intestine

Q.

How do carbohydrates, proteins, and fats get digested in human beings?

Q. The bile provides an environment in the small intestine for the digestion of food.

1. acidic
2. alkaline
3. neutral

Q. State whether the following statements are true or false.
Statement 1: Large intestine helps in the absorption of nutrients.
Statement 2: Large intestine is smaller than small intestine in length.

1. 
   Statement 1: True; Statement 2: False
2. 
   Statement 1: False; Statement 2: False
3. 
   Statement 1: True; Statement 2: True
4. 
   Statement 1: False; Statement 2: True

Q.

Question 5
What are villi? What are their locations and functions?

Q.

The inner wall of the small intestine has many finger-like outgrowths called ________.

Q.

Which organ is responsible for producing bile?

Q.

__________ increases the surface area for absorption in intestines:

1. Cilia

2. Membrane

3. Villi

4. Hairs

Q.

Pancreatic juice is secreted by ________.

1. Pancreas

2. Thymus

3. Pituitary

4. Liver

Q.

Question 3 (a)
Tick (√) mark the correct answer in each of the following:
(a) Fat is completely digested in the
(i) stomach (ii) mouth (iii) small intestine (iv) large intestine

Q.

Which organ secretes sodium bicarbonate to neutralize the acidity of chyme?

Q.

Bile is produced by the liver and stored in the __________.

1. Gall bladder

2. Stomach

3. Rectum

4. Salivary gland

Q.

The small intestine receives secretions from liver and pancreas

1. True
2. False

Q.

Which organ secretes sodium bicarbonate to neutralize the acidity of chyme?

Q.

Lipase acts on fats and converts it into ________ and _________.

Q.

Most of the digestion and absorption of food occurs in the ___________.

1. mouth

2. small intestine

3. large intestine

4. stomach

Q. What happens when the salivary glands are unable to produce salivary amylase?

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

Q.

What does saliva contains in addition to salivary amylase.

Q. Write a short note on large intestine. [3 MARKS]

Q.

The fingerlike outgrowths of Amoeba help ingest food. However, the fingerlike outgrowths of human intestines help to

1. Digest the fatty food substances

2. Make the food soluble

3. Absorb the digested food

4. Absorb undigested food

Q.

What is bile juice?

Q. Match the following columns and select the correct option.

$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \text{A.}& \text{Liver}& 1& \text{Secretes saliva}\\ \text{B.}& \text{Gallbladder}& 2& \text{Secretes bile}\\ \text{C.}& \text{Salivary gland}& 3& \text{Stores bile}\end{array}$

1. 
   A: 3; B: 1; C: 2
2. 
   A: 2; B: 1; C: 3
3. 
   A: 1; B: 3; C: 2
4. 
   A: 2; B: 3; C: 1

Q. Question 13
Name the parts of the alimentary canal where

i) Water gets absorbed from undigested food.
ii) Digested food gets absorbed.
iii) Taste of the food is perceived.
iv) Bile juice is produced.

Q. Bile salts help in ________ of fats.

1. emulsification
2. alkalination
3. mastication
4. absorption

Q.

Question 9 (iv)
Which part of the digestive canal is involved in:
(iv) complete digestion of food __.

Q.

Carbohydrates and fats are body-building foods.

1. True
2. False

Q. Consider the following statements:

Statement 1: Glucose and amino acids are absorbed by the capillaries.
Statement 2: Fats are passed into the lymphatic system.

1. Only 1 is correct
2. Only 1 is correct
3. Both are correct
4. Both are wrong

Q.

Explain the functions of the following organs in the human body. [5 MARKS]
1. Tongue
2. Gallbladder
3. Small intestine
4. Villi
5. Teeth

Q. Proteins are digested into amino acids and fats into fatty acids. Which one of the following organs is responsible for absorption of fatty acids and amino acids?

1. Small intestine
2. Stomach
3. Large intestine
4. Oesophagus

Q.

Most of the digestion and absorption of food occur in the ____________.

1. Small intestine

2. Large intestine

3. Stomach

4. Mouth