MCQ Chapter 16 Digestion and Absorption Class 11 Biology

Please refer to Digestion and Absorption MCQ Questions Class 11 Biology below. These MCQ questions for Class 11 Biology with answers have been designed as per the latest NCERT, CBSE books, and syllabus issued for the current academic year. These objective questions for Digestion and Absorption will help you to prepare for the exams and get more marks.

Digestion and Absorption MCQ Questions Class 11 Biology

Please see solved MCQ Questions for Digestion and Absorption in Class 11 Biology. All questions and answers have been prepared by expert faculty of standard 11 based on the latest examination guidelines.

MCQ Questions Class 11 Biology Digestion and Absorption

Question- Emulsification refers to
(a) action of bile on breaking large fat droplets
(b) action of gastric lipase on proteins
(c) action of salivary amylase on starch
(d) action of pancreas on fat droplets

Question- The function of tongue is to
(a) grind and crush the food.
(b) position food for swallowing.
(c) add enzymes and moisture to the food.
(d) protect the opening of the pharynx during swallowing.

Question- Which digestive organ mechanically and chemically transforms a food bolus into chyme?
(a) Oesophagus
(b) Stomach
(c) Small intestine
(d) Large intestine

Question- The innermost layer of the digestive tract is the
(a) serosa membrane
(b) mucosa membrane
(c) submucosa membrane
(d) lumen

Question- Which cells of gastric mucosa secrete pepsinogen?
(a) Parietal
(b) Oxyntic
(c) Chief cells
(d) Goblet

Question- Crypts of lieberkuhn are present in
(a) intestine
(b) stomach
(c) oesophagus
(d) all of these

Question-The sphincter of Oddi is present between
(a) oesophagus and cardiac stomach.
(b) pyloric stomach and duodenum.
(c) hepatic duct and cystic duct.
(d) hepatopancreatic duct and duodenum.

Question- Which of the following does not produce any digestive enzyme ?
(a) Acini of pancreas
(b) Liver
(c) Stomach
(d) Duodenum

Question- The common bile duct in human is formed by the joining of
(a) pancreatic duct and bile duct.
(b) cystic duct and hepatic duct.
(c) cystic duct and pancreatic duct.
(d) hepatic duct and pancreatic duct.

Question- Which one of the following is the constituents of the pancreatic juice while poured into the duodenum in humans?
(a) Maltase
(b) Enterokinase
(c) Trypsinogen
(d) Chymotrypsin

Question- Function of gall bladder is
(a) storage of bile.
(b) formation of enzymes.
(c) synthesis of bile.
(d) formation of bile salts.

Question- Where does bile go after it leaves the gall bladder?
(a) Duodenum
(b) Jejunum
(c) Ileum
(d) Caecum

Question- A good source of lipase is
(a) saliva
(b) gastric juice
(c) bile
(d) pancreatic Juice

Question- End product of protein digestion is —
(a) sugar
(b) amino acid
(c) nucleotide
(d) ammonia

Question- The ______ is primarily a storage chamber within the digestive system, while the ______ reabsorbs water, ions, and generates the faeces.
(a) buccal cavity; midgut
(b) crop; midgut
(c) stomach; hindgut
(d) buccal cavity; hindgut

Question- Digestive enzymes responsible for breaking down disaccharides includes
(a) pepsin, trypsin and trypsinogen.
(b) amylase, pepsin, and lipase.
(c) sucrase, lactase, and maltase.
(d) pepsin, trypsin, and chymotrypsin.

Question- Enterokinase takes part in conversion of
(a) pepsinogen to pepsin
(b) trypsinogen to trypsin
(c) protein into polypeptides
(d) caseinogen into casein

Question-. pH of saliva is
(a) 6.5
(b) 8
(c) 7
(d) 9.5

Question- Which of the following is a freely movable muscular organ that is attached to the floor of the oral cavity by the frenulum?
(a) Jaws
(b) Teeth
(c) Tongue
(d) Salivary glands

Question- Maltase converts
(a) maltose to glucose at pH greater than 7.
(b) maltose to glucose at pH lesser than 7.0.
(c) maltose to alcohol.
(d) starch to maltose at pH higher than 7.0.

Question- Mammalian teeth are
(a) acrodont
(b) homodont
(c) thecodont
(d) polyphyodont

Question- Succus entericus is a term used for
(a) the junction of ileum and colon
(b) inflammation of intestine
(c) vermiform appendix
(d) digestive juice of intestine

Question- Enzyme trypsin is secreted by
(a) duodenum
(b) liver
(c) pancreas
(d) stomach

Question- The number of salivary glands present in human beings is
(a) 5 pairs
(b) 4 pairs
(c) 3 pairs
(d) 2 pairs

Question- Milk protein is acted upon by a gastric enzyme in infant mammals. The enzyme is ___________.
(a) rennin
(b) caesinogen
(c) pepsinogen
(d) pepsin

Question- Pancreatic juice helps in the digestion of
(a) proteins and fats
(b) proteins and carbohydrates
(c) fats and carbohydrates
(d) proteins, fats and carbohydrates

Question- Oxyntic cells are located in
(a) Islets of langerhans.
(b) gastric epithelium and secrete pepsin.
(c) kidneys and secrete renin.
(d) gastric epithelium and secrete HCl.

Question- The substrate for amylase is
(a) proteins
(b) fats
(c) starch
(d) cane sugar

Question- Which of the following enzyme digest milk protein in alkaline medium?
(a) Pepsin
(b) Trypsin
(c) Rennin
(d) Chymotrypsin

Question- Most of the fat digestion occurs in
(a) rectum
(b) stomach
(c) colon
(d) small intestine

Question- ____ are needed in the diet as components of teeth and bone, regulators of acid-base balance and water balance, and parts of certain enzymes.
(a) Carbohydrates
(b) Fats
(c) Minerals
(d) Nucleic acids

Question- Muscular contraction in alimentary canal is called —
(a) deglutition
(b) mastication
(c) peristalsis
(d) none of these

Question- Salivary amylase is also known as
(a) ptyalin
(b) gastrin
(c) glyoxylase
(d) pepsin

Question- HCl of gastric juice
(a) inactivates ptyalin and activates pepsin.
(b) activates ptyalin and inactivates pepsin.
(c) inactivates both ptyalin and pepsin.
(d) activates both ptyalin and pepsin.

Question- Brunner’s glands are found in
(a) submucosa of stomach
(b) wall of rectum
(c) submucosa of duodenum
(d) mucosa of ileum

Question- Enzyme trypsinogen is changed to trypsin by
(a) gastrin
(b) enteropeptidase
(c) enterogastrone
(d) secretin

Question-Which enzyme initiates protein digestion ?
(a) Pepsin
(b) Trypsin
(c) Aminopeptidase
(d) Carboxypeptidase

Question- The disaccharidases are secreted with
(a) saliva
(b) gastric juice
(c) intestinal juice
(d) pancreatic juice

Question- Most of the chemical digestion of food in humans is completed in the —
(a) small intestine
(b) appendix
(c) ascending colon
(d) stomach

Question- The protein coated, water soluble fat globules are called
(a) chylomicrons
(b) micelles
(c) chyle
(d) monoglycerides

Question- Which homeostatic function of the liver is controlled and monitored in the pancreas?
(a) Deamination of amino acids
(b) Release of glucose
(c) Release of iron
(d) Removal of toxins

Question- Which of the following is the structural and function unit of the largest digestive gland?
(a) Kupffer cells
(b) Hepatic lobules
(c) Glissons capsule
(d) Crypts of Lieberkuhn

Question- Semi – digested food in intestine is called
(a) chyle
(b) chyme
(c) bolus
(d) none of these

Question- Which of the following enzyme is not present in pancreatic juice?
(a) Chymotrypsinogen
(b) Steapsin
(c) Nuclease
(d) Enterokinase

Question- Teeth of adult man, not present in milk dentition are
(a) molars
(b) premolars
(c) canines
(d) incisors

Question- Protection of the walls of the stomach against the action of its own digestive juice
(a) is controlled by a centre in the medulla of the brain.
(b) results from the nervous reactions of the lining of the stomach.
(c) results from the presence of an anti-enzyme chemical formed by the gastric gland.
(d) results from the neutralizing, buffering and coating mucus covering its inner surface.

Question- Rennin acts on milk protein and changes
(a) caesinogen into caesin.
(b) caesin into paracaesin.
(c) caseinogen into paracaesin.
(d) paracaesin into caesinogen.

Question- Glucose, some amino acids and sodium are absorbed in to blood by ________.
(a) simple diffusion
(b) active transport
(c) facilitated transport
(d) the statement is incorrect since they are absorbed in lymph and not in blood.

Question- Diglycerides on digestion give
(a) one fatty acid and one glycerol
(b) two fatty acid and one glycerol
(c) two glycerol and one fatty acid
(d) two glycerols only

Question- Trypsin changes
(a) fats into fatty acids.
(b) proteins into peptones.
(c) starch and glycogen into maltose.
(d) maltose into its components.