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Digestion And Absorption Mcq
Quiz 5
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Q.1
Deficiency of vitamin A causes ... [ MPPMT 1999 ]
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a) Cataract
0%
b) Myopia
0%
c) Hyperopia
0%
d) Night blindness
Explanation
Deficiency of vitamin A causes night blindness Answer : (d)
Q.2
What will happen if bile duct gets chocked? [ DPMT 1996]
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a) Faeces become dry
0%
b) Acidic chyme will not be neutralised
0%
c) There will be little digestion in intestine
0%
d) Little absorption of fat will occur
Explanation
Bile juice helps in the digestion of fat. if bile duct gets chocked bile juice will not available will cause little absorption of fat Answer : (d)
Q.3
Similar cone shape teeth are ...[ kerala 2002 ]
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a) Diphyodont
0%
b) Acrodont
0%
c) Homodont
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d) Thecodont
Explanation
Homodont Describing animals whose teeth are all of the same type. Most vertebrates except mammals are homodont.Similar cone shape teeth is Homodont Answer : (c)
Q.4
Human being is hungry when ..[CPMT 1994 ]
0%
a) Food cannot meet energy requirement
0%
b) Stomach is empty
0%
c) Food can not meet energy requirement of the body
0%
d) Food has been digested
Explanation
After hours of non-consumption, leptin levels drop significantly. These low levels of leptin cause the release of a secondary hormone, ghrelin, which in turn reinitiates the feeling of hunger. Leptin , the "satiety hormone",is a hormone made by adipose cells that helps to regulate energy balance by inhibiting hunger. Answer : (b)
Q.5
Which set is not similar ... [ CBSE 2001 ]
0%
a) Sebum - Sweat
0%
b) Corpus luteum - Graafian follicles
0%
c) Vitamin B7 - Niacin
0%
d) Bundle of His - Pace Maker
Explanation
Biotin is a water-soluble B-complex vitamin that helps the body metabolize proteins and process glucose. It is also known as vitamin B7 or vitamin H His bundle pacing is an innovative approach in which permanent pacemaker leads are placed at the Bundle of His (or His bundle) instead of in the right ventricle (the traditional approach). Answer : (c)
Q.6
Digestive juice contains catalytic agent called .... [ Pb PMT 2000 ]
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a) Vitamins
0%
b) Hormones
0%
c) Enzymes
0%
d) Nitrates
Explanation
Digestive juice contains catalytic agents called Enzymes. Answer : (c)
Q.7
Energy value of 9.3 kcal/gm is that of ...[ JIPMER 2002 ]
0%
a) Carbohydrates
0%
b) Fat
0%
c) Protein
0%
d) Vitamins
Explanation
4 Kcalories in a gram of carbohydrate or protein 9 Kcalories in a gram of fat Answer : (b)
Q.8
Gallbladder takes part in ...[ RPMT 2002 ]
0%
a) Secretion of bile
0%
b) Storage of bile
0%
c) Formation of bile salt
0%
d) Formation of enzymes
Explanation
Its primary function is to store and concentrate bile, a yellow-brown digestive enzyme produced by the liver. Answer : (b)
Q.9
Lysozymes are found in .... [ MPPMT 2004 ]
0%
a) Saliva
0%
b) Tears
0%
c) Both saliva and tears
0%
d) Mitochondria
Explanation
Lysozyme is abundant in secretions including tears, saliva, human milk, and mucus Answer : (c)
Q.10
Oxyntic cells are located in ... [ Manipur 2006 ]
0%
a) Islets of Langerhans and secrete insulin
0%
b) Kidney and secrete renin
0%
c) Gastric epithelium and secrete HCl
0%
d) Gastric epithelium and secrete pepsin
Explanation
Answer : (c)
Q.11
For activity of carboxypeptidase requires ...[CBSE Mains 2012 ]
0%
a) Zinc
0%
b) Niacin
0%
c) Copper
0%
d) Iron
Explanation
Protein substrate binds to carboxypeptidase. A zinc ion (Zn2+) is tightly bound near the active site and assists in catalysis. Answer : (a)
Q.12
An average person doing moderate work requires daily an energy .. [ CBSE 1999 ]
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a) 75 kcal
0%
b) 1000 kcal
0%
c) 2000 kcal
0%
d) 2800 kcal
Explanation
An average person doing moderate work requires daily an energy 2800 kcal Answer : (d)
Q.13
Osteomalacia is due to deficiency of ... [ BHU 2007 ]
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a) Vit.D/Calciferol
0%
b) Vit. K
0%
c) Vit. A
0%
d) Vit. E
Explanation
Osteomalacia is the softening of the bones caused by impaired bone metabolism primarily due to inadequate levels of available phosphate, calcium, and vitamin D. Answer : (a)
Q.14
Peristalsis occurs in ...[Odisha 2012 ]
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a) Urethra
0%
b) Ureter
0%
c) Blood vessels
0%
d) Alimentary canal
Explanation
The process of peristalsis begins in the esophagus when a bolus of food is swallowed Answer : (d)
Q.15
In small intestine, active absorption occurs in case of ....[ AMU 2001 ]
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a) Glucose
0%
b) Amino acid
0%
c) Na+
0%
d) All the above
Explanation
Types of Absorption in Small Intestine 1. Passive diffusion - Nutrients pass through enterocytes and into bloodstream w/o carrier protein or energy – lipids, water, vitamin C, minerals 2. Facilitated diffusion - Nutrients pass through enterocytes with help of a carrier protein but don’t require energy – monosaccharide fructose 3. Active transport - Requires the use of energy to transport nutrients in combination with a carrier protein – glucose, galactose, sodium, potassium, magnesium, calcium, iron, amino acids 4. Endocytosis - A form of active transport by which a small amount of the intestinal contents is engulfed by the enterocyte’s cell membrane and incorporated into the cell – some proteins and other large particles Answer : (d)
Q.16
Part of tongue that gives feeling of sweetness is ...[ Har. PMT 2001 ]
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a) Tip
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b) Lateral edges
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c) Middle part
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d) Posterior part
Explanation
Part of tongue that gives feeling of sweetness is tip Answer : (a)
Q.17
Saliva is produced by .... [MPPMT 1998]
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a) Pancreas
0%
b) Gall bladder
0%
c) Gastric glands
0%
d) Submaxillary and sublingual gland
Explanation
Submaxillary a salivary gland inside the lower jaw on either side that produces most of the nocturnal saliva; discharges saliva into the mouth under the tongue. The paired sublingual glands are major salivary glands in the mouth. Answer : (d)
Q.18
Bile acid are ...[Pb. PMT 2000 ]
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a) Steroids
0%
b) Cabohydrates
0%
c) Modified proteins
0%
d) Vitamins
Explanation
A steroid is an organic compound with four rings arranged in a specific molecular configuration Bile acids are steroid acids found predominantly in the bile of mammals and other vertebrates. Answer : (a)
Q.19
One of the constituents of pancreatic juice which is poured into duodenum is ...[CBSE main 2011 ]
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a) trypsinogen
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b) Chymotrypsin
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c) Trypsin
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d) Enterokinase
Explanation
Pancreatic juice is a liquid secreted by the pancreas, which contains a variety of enzymes, including trypsinogen, chymotrypsinogen, elastase, carboxypeptidase, pancreatic lipase, nucleases and amylase. Answer : (a)
Q.20
Which one of the following is not secreted by pancreas ...
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a) Insulin
0%
b) Glucagon
0%
c) Renin
0%
d) Somatostatin
Explanation
Pancreas secrets hormones, including insulin, glucagon, somatostatin, and pancreatic polypeptide. The pancreas is also a digestive organ, secreting pancreatic juice containing digestive enzymes that assist digestion and absorption of nutrients in the small intestine. Renin is secreted from juxtaglomerular kidney cells Answer : (c)
Q.21
Which of the following vitamins are produced by symbiotic bacteria in humans? [ CET Chd. 2006 ]
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a) Vitamins B and K
0%
b) Vitamins A and B
0%
c) Vitamin E
0%
d) Vitamin D
Explanation
In digestive systems, symbiotic bacteria help break down foods that contain fiber. They also help produce vitamins. Symbiotic bacteria in humans produce is Vitamins B and K Answer : (a)
Q.22
Liver produces .... [ RPMT 1996 ]
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a) Bile
0%
b) Cholesterol
0%
c) Iron
0%
d) All the above
Explanation
The liver is an accessory digestive organ that produces bile, a fluid containing cholesterol and bile acids, and an alkaline compound which helps the breakdown of fat. The liver's stores of ferritin are the primary physiologic source of reserve iron in the body Answer : (d)
Q.23
Main function of HCl of gastric juice is ...[Odisha 2012 ]
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a) Detoxification
0%
b) Conversion of pepsinogen to pepsin
0%
c) Emulsification of fat
0%
d) Hydrolysis of starch
Explanation
Hydrochloric acid activates pepsinogen into the enzyme pepsin, which then helps digestion by breaking the bonds linking amino acids, a process known as proteolysis. Answer : (b)
Q.24
Yellow colour of faeces is on account of ...[ Odisha 2006 ]
0%
a) Excessive turmeric
0%
b) Bile
0%
c) Degradation product of haemoglobin
0%
d) None of above
Explanation
Bilirubin and bile give faeces its normal brown color. Bilirubin is a byproduct of red blood cells. It’s produced in the liver and then moves to the gallbladder, where it mixes with bile. Answer : (c)
Q.25
Rickets is due to deficiency of vitamin ... [ CET Chd. 2006 ]
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a) D
0%
b) C
0%
c) B
0%
d) A
Explanation
Rickets is a bone disorder caused by a deficiency of vitamin D, calcium, or phosphate. Answer : (a)
Q.26
Hormone that causes glycogenolysis and gluconeogenesis is .... [ Uttarakhnd 2001 ]
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a) Insulin
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b) Glucagon
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c) Aldosterone
0%
d) ACTH
Explanation
Glucagon generally elevates the concentration of glucose in the blood by promoting gluconeogenesis and glycogenolysis. Glucagon also regulates the rate of glucose production through lipolysis. Glucagon induces lipolysis in humans under conditions of insulin suppression Answer : (b)
Q.27
Number of canines in upper half jaw is ....[Har PMT 2001 ]
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a) 4
0%
b) 3
0%
c) 2
0%
d) 1
Explanation
Normally, every adult has two canine teeth in each upper and lower jaw Note :Upper Half meaning is the upper area or section of a person or things Answer : (c)
Q.28
Cellulose digestion in ruminants occurs in ....[Har. PMT 2002 ]
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a) Rumen
0%
b) Omasum
0%
c) Abomasum
0%
d) Reticulum
Explanation
The rumen, also known as a paunch, forms the larger part of the reticulorumen, which is the first chamber in the alimentary canal of ruminant animals. It serves as the primary site for microbial fermentation of ingested feed,than can break down cellulose (foregut fermentation). Answer : (a)
Q.29
Hydrolysis of lipids produces ... [ RPMT 2002 ]
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a) Glycerin and glycerol
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b) Fatty acids and trihydric alcohol
0%
c) Glycine
0%
d) All the above
Explanation
Hydrolysis of the lipid results in breaking the fatty acids off, leaving free fatty acids and a glycerol molecule, and using up three water molecules. Answer : (b)
Q.30
Amino acid not synthesised in human body is ....[CPMT 1996 ]
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a) Nonessential
0%
b) Deaminated
0%
c) Aminated
0%
d) Essential
Explanation
An essential amino acid, or indispensable amino acid, is an amino acid that cannot be synthesized de novo (from scratch) by the organism, and thus must be supplied in its diet. Answer : (d)
Q.31
Base of tongue is sensitive to test ... [ Manipal 2000 ]
0%
a) Salt
0%
b) Sweet
0%
c) Bitter
0%
d) Sour
Explanation
Answer : (c)
Q.32
Substrate for lipase is ...[WB 2012 ]
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a) Fat
0%
b) Protein
0%
c) Carbohydrate
0%
d) Nucleic acid
Explanation
Substrates of lipase are fats. They are split into fatty acids and glycerol. Answer : (a)
Q.33
Putrefying bacteria are found in ...[BHU 2006 ]
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a) Intestine
0%
b) Stomach
0%
c) Liver
0%
d) Colon
Explanation
Putrefying bacteria are bacteria involved in putrefaction of living matter Degradation of undigested protein in the colon is called putrefaction; Answer : (d)
Q.34
Consider the following statements: I. Nicotinamide ( anti pellagra ) occurs in milk, yeast, meat and lify vegetables. II. Crypts of Lieberkuhn occur in liver. III. Steapsin is pancreatic amylase ......[ kerala 2007 ]
0%
a) II and III are correct
0%
b) II and III are incorrect
0%
c) I and III are correct
0%
d) I and III are incorrect
Explanation
Crypts of Lieberkühn are intestinal glands Steapsin is a pancreatic lipase that aids the digestion of fats Answer : (b)
Q.35
Sulphur is not a constituent of ...[AMU 2011 ]
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a) Cysteine
0%
b) Ferredoxin
0%
c) Pyridoxine
0%
d) Methionine
Explanation
Pyridoxine - C8H11NO3 Cysteine - HO2CCH(NH2)CH2SH Ferredoxin - Fe3S4 Methionine - C5H11NO2S Answer : (c)
Q.36
Find out the correctly matched pair.... [ kerala 2007 ]
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a) HCl - Goblet cells
0%
b) Mucus - Oxyntic cells
0%
c) Pepsinogen - Zymogenic cells
0%
d) Ptyalin - Acinar cell
Explanation
A gastric chief cell (or peptic cell, or gastric zymogenic cell) is a type of cell in the stomach that releases pepsinogen and gastric lipase and is the cell responsible for secretion of chymosin in ruminants. Answer : (c)
Q.37
Anaemia is mainly due to deficiency of ...[ AFMC 2003 ]
0%
a) Ca
0%
b) Fe
0%
c) Na
0%
d) Mg
Explanation
Anemia, also spelled anaemia, is usually defined as a decrease in the total amount of red blood cells (RBCs) or hemoglobin in the blood. Causes of decreased production include iron deficiency, a lack of vitamin B12, thalassemia. Answer : (b)
Q.38
Cod and shark liver oil is source of ...[ kerala 2007 ]
0%
a) Constructive nutrients
0%
b) Protective nutrients
0%
c) protective and constructive nutrients
0%
d) Energetic nutrients
Explanation
Shark liver oil is used along with usual cancer drugs to treat leukemia and other cancers; to prevent radiation illness from cancer X-ray therapy; to prevent the common cold, flu, and swine flu; and to boost the body’s immune system. It is also used for increasing white cell counts during treatment with anti-cancer drugs Answer : (c)
Q.39
Enterogastrone is ... [ CPMT 2007]
0%
a) Hormone secreted by duodenal mucosa
0%
b) Hormone secreted by gastric mucosa
0%
c) Enzyme produced by gastric mucosa
0%
d) Product of endocrine gland related to digestion
Explanation
An enterogastrone is any hormone secreted by the mucosa of the duodenum in the lower gastrointestinal tract in response to dietary lipids that inhibits the caudal (or "forward, analward") motion of the contents of chyme. Answer : (a)
Q.40
Mineral deposition in bones and teeth is mediated through vitamin .... [ MPPMT 1998 ]
0%
a) A
0%
b) D
0%
c) E
0%
d) C
Explanation
Vitamin D, absorb calcium, which helps to build bones and keep bones strong and healthy. Block the release of parathyroid hormone. Answer : (b)
Q.41
Which one is a water born disease? [Wardha 2005 ]
0%
a) T.B.
0%
b) Small pox
0%
c) Cancer
0%
d) Hepatitis
Explanation
TB is spread from person to person through the air. Smallpox The virus can be transmitted through the air by droplets that escape when an infected person coughs, sneezes or talks Cancer is caused by accumulated damage to genes. Such changes may be due to chance or to exposure to a cancer causing substance. Two of the viruses that cause hepatitis (hepatitis A and E) can be transmitted through water, food and from person to person. Answer : (d)
Q.42
Secretion of pancreatic juice is stimulated by ....[MPPMT 2007 ]
0%
a) gastrin
0%
b) Enterogastrone
0%
c) Enterokinase
0%
d) Secretin
Explanation
Secretin is a hormone released into the bloodstream by the duodenum (especially in response to acidity) to stimulate secretion by the liver and pancreas. Answer : (d)
Q.43
Which one is false ...[HPPMT 2007 ]
0%
a) Bile is secreted by gall bladder
0%
b) Bile is secreted by liver
0%
c) Fundic stomach is site of digestion
0%
d) Parietal cells occure in wall of stomach
Explanation
Gallbladder is a small organ where bile is stored and concentrated before it is released into the small intestine Answer : (a)
Q.44
Exclusive holozoic nutrition is seen in ....[ Odisha 2011 ]
0%
a) House fly
0%
b) Spider
0%
c) Man
0%
d) Shark
Explanation
Holozoic nutrition is a kind of nutritional method that involves the ingestion of food either by liquid or solid organic material. Answer : (c)
Q.45
Which one is associated with vitamin D ...[Tamil nadu 2001 ]
0%
a) Tocopherol
0%
b) Ergosterol
0%
c) Cholesterol
0%
d) Both B and C
Explanation
Ergosterol is a compound present in ergot and many other fungi. A steroid alcohol, it is converted to vitamin D2 when irradiated with ultraviolet light. synthesis of vitamin D (specifically cholecalciferol) in the skin is the major natural source of the vitamin. Vitamin D is made in the skin from cholesterol dependent on sun exposure (specifically UVB radiation). Answer : (d)
Q.46
Absence of enzyme in small intestine will severely affect digestion of proteins ...[ KCET 202]
0%
a) maltase
0%
b) Lipase
0%
c) Enterokinase
0%
d) Pancreatic amylase
Explanation
Enteropeptidase converts trypsinogen (a zymogen) into its active form trypsin, resulting in the subsequent activation of pancreatic digestive enzymes. Absence of enteropeptidase results in intestinal digestion impairment. Answer : (c)
Q.47
HCl is secreted by .... [ AFMC 2005 ]
0%
a) Zymogen cells
0%
b) Kupffer's cells
0%
c) Oxyntic/parital cells
0%
d) Mucous cells
Explanation
Oxyntic (Parietal cells also known as or delomorphous cells), are the epithelial cells that secrete hydrochloric acid (HCl) and intrinsic factor. These cells are located in the gastric glands found in the lining of the fundus and in the body of the stomach. Answer : (c)
Q.48
Oxyntic cell produces ..[Odisha 2011 ]
0%
a) Pepsin
0%
b) Trypsin
0%
c) Rennin
0%
d) HCl
Explanation
Parietal cells (also known as oxyntic or delomorphous cells), are the epithelial cells that secrete hydrochloric acid (HCl) Answer : (d)
Q.49
Which one is a gastrointestinal hormone ...[WB 2011 ]
0%
a) Prolactin
0%
b) GH
0%
c) Enterokinase
0%
d) FSH
Explanation
Enteropeptidase (Enterokinase) converts trypsinogen (a zymogen) into its active form trypsin, resulting in the subsequent activation of pancreatic digestive enzymes Answer : (c)
Q.50
Zn, Mo, Fe and Cu are ...[DPMT 2007 ]
0%
a) Macronutrients
0%
b) Non-essential elements
0%
c) Trace elements
0%
d) None of the above
Explanation
Micrionutrient or trace elements Boron , Calcium, Cobalt, Chlorine,Chromium Copper Iodine Iron Lithium Magnesium Manganese Molybdenum Phosphorus Potassium Selenium Sodium Sulfur Zinc Answer : (c)
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