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Published on: 09/09/2019
Zoology - Digestion and Absorption
Download Tamil Nadu 11th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Biology Test1.
Which of the following is not true regarding intestinal villi?
They possess microvilli.
They increase the surface area.
They are supplied with capillaries and the lacteal vessels
They only participate in digestion of fats.
2.
Assertion : (A) Large intestine also shows the presence of villi like small intestine.
Reason : (B) Absorption of water takes place in large intestine.
Both A and B are true and B is the correct explanation of A
Both A and B are true but B is not the correct explanation of A
A is true but B is false
A is false but B is true
3.
Which of the following is not the function of liver?
Production of insulin
Detoxification
Storage of glycogen
Production of bile
4.
Match column I with column II and choose the correct option
| Column I | Column II |
| (P) Lipase | i) Starch |
| (Q) Pepsin | ii) Casein |
| (R) Renin | iii) Protein |
| (S) Ptyalin | iv) Lipid |
| P | Q | R | S |
| iv | ii | i | iii |
| P | Q | R | S |
| iii | iv | ii | i |
| P | Q | R | S |
| iv | iii | ii | i |
| P | Q | R | S |
| iii | ii | iv | i |
5.
Match column I with column II and choose the correct option
| Column I | Column II |
| (P) Small intestine | i) 23 cm |
| (Q) Large intestine | ii) 4 meter |
| (R) Oesophagus | iii) 12.5 cm |
| (S) Pharynx | iv) 1.5 meter |
| P | Q | R | S |
| iv | ii | i | iii |
| P | Q | R | S |
| ii | iv | i | iii |
| P | Q | R | S |
| i | iii | ii | iv |
| P | Q | R | S |
| iii | i | ii | iv |
6.
Which of the following combinations are not matched?
| Column I | Column II |
| (a) Bilirubin and biliverdin | i) Intestinal juice |
| Column I | Column II |
| (b) Hydrolysis of starch | ii) Amylases |
| Column I | Column II |
| (c) Digestion of fat | iii) Lipases |
| Column I | Column II |
| (d) Salivary gland | iv) Parotid |
7.
Absorption of glycerol, fatty acids and monoglycerides takes place by ______.
Lymph vessels within villi
Walls of stomach
Colon
Capillaries within villi
8.
Which one is incorrectly matched?
Pepsin - Stomach
Renin -Liver
Trypsin - Intestine
Ptyalin - Mouth
9.
Which of the following hormones stimulate the production of pancreatic juice and bicarbonate?
Angiotensin and epinephrine
Gastrin and insulin
Cholecystokinin and secretin
Insulin and glucagon
10.
What is chyme_______ ?
The process of conversion of fat into small droplets.
The process of conversion of micelles substances of glycerol into fatty droplet.
The process of preparation of incompletely digested acidic food through gastric juice.
The process of preparation of completely digested liquid food in midgut.
11.
Choose the incorrect sentence from the following:
Bile juice emulsifies the fat.
Chyme is a digestive acidic food in stomach.
Pancreatic juice converts lipid into fatty acid and glycerol.
Enterokinase stimulates the secretion of pancreatic juice.
12.
Digestive secretions are secreted only when needed Discuss.
13.
Bile juice contains no digestive enzymes, yet it is important for digestion. Why?
14.
Why are villi present in the intestine and not in the stomach?
15.
How do proteins differ from fats in their energy value and their role in the body?
16.
List the chemical changes that starch molecule undergoes from the time it reaches the small intestine.
17.
Label the given diagram.
1.
(d)
They only participate in digestion of fats.
2.
(d)
A is false but B is true
3.
(a)
Production of insulin
4.
(c)
| P | Q | R | S |
| iv | iii | ii | i |
5.
(b)
| P | Q | R | S |
| ii | iv | i | iii |
6.
(a)
| Column I | Column II |
| (a) Bilirubin and biliverdin | i) Intestinal juice |
7.
(a)
Lymph vessels within villi
8.
(b)
Renin -Liver
9.
(c)
Cholecystokinin and secretin
10.
(c)
The process of preparation of incompletely digested acidic food through gastric juice.
11.
(d)
Enterokinase stimulates the secretion of pancreatic juice.
12.
(i) Ingested food is to be completely digested.
(ii) Digestive medium should become normal conditions.
(iii) Maximum utilization of digestive secretions is to be performed for the digestion of food.
(iv) The stimulation of digestive hormonal secretions is to be regulated.
13.
(i) Liver secretes bile without digestive enzymes.
(ii) Liver secretes bile with the bile salts like sodium taurocholate which serve as antibacterial agents.
(iii) Bile emulsifies and saponifies the fats.
Eg: Weak lipase present with bile in the stomach.
14.
(i) In stomach digested food is incompletely formed so that cannot be absorbed.
(ii) Finger like projections called villi are not found in the wall of stomach.
(iii) The concentration gradient by active transport cannot be created in stomach.
15.
| S.No | Proteins | Fats |
| 1 | Yield energy if carbohydrates and fats are not available. |
Yield secondary concentrated source of energy. |
| 2. | Nitrogenous wastes are mostly formed. | Less formed. |
| 3. | Involve in growth and repair of the body. |
Involve in growth of the body and serve as the reserve food. |
| 4. | The caloric value and physiological fuel value of one gram of protein are 5.65 kcal and 4 kcal are respectively ICMR and WHO suggested that. |
The caloric value of 9.45 kcal and a physiological fuel value of 9 kcal per gram. |
| 5. | 1 gm/1kg of body weight needs proteins. |
4 gm/60 kg of body weight needs |
16.
Mouth:
(i) In buccal cavity starch is hydrolysed by saliva.
(ii) The cooked starch (polysaccharide) is converted into a maltose (disaccharide) by salivary amylase or ptyalin.
Duodenum:
Pancreatic amylase converts starch (polysaccharide) into di and monosaccharides.
17.
A. Common hepatic duct
B. Common bile duct
C. Pancreatic duct (duct of Wirsung)
D. Sphincter of Oddi
E. Cystic duct
11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil மாமழை போற்றுதும் - துணைப்பாடம் - யானை டாக்டர் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set A
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