Download Doubtnut Now · Watch Video Solution On Doubtnut App Q-35 - 30696699 A patient is advised...
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NEETREVISIONSERIES
DIGESTIONANDABSORPTION
ReviseMostImportantQuestionstoCrackNEET2020
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Q-1-10761403
Identify the cells whose secretion protects the lining of gastro-
intestinal tract from various enzymes
(A)DuodenalCells
(B)ChiefCells
(C)GobletCells
(D)OxynticCells
CORRECTANSWER:C
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Q-2-13956516
The given figure represents the human digestive system. Identify
A,B,C D and E.
(A)A-Parotidgland,B-Lvier,C-Pancreas,D-Caecu,E-
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Vermiformappendix
(B)A-Parotidgland,B-Pancereas,C-Liver,D-Aecum,E-
Vermiformappendix
(C)A-Parotidgland,B-Caecum,C-Pancreas,D-Liver,E-
Vermiformappendix
(D)A-Parotidgalnd,B-Liver.C-Caecu,D-
Pancreas,E=Vermiformappendix
CORRECTANSWER:A
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Q-3-13956520
Read the following statements and select the correct option.
Statement 1: Dental formula gives the number of teeth in the half of
each jaw.
Statement 2: Dental formula can be xpressed for insectivorous
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mammals as well as for the nonmammalian vertebrates.
(A)Bothstatements1and2arecorrect
(B)Statement1iscorrectbutstatement2isincorrect
Statement1isincorrectbutstatement2iscorrect.
(C)Statement1isincorrectbutstatement2iscorrect.
(D)Bothstatements1and2areincorrect.
CORRECTANSWER:B
SOLUTION:
Dentalformulaisarepresentationofthedntitionofan
animal.Adentalformulaconsistsofeightnumbers,four
aboveandfourbelowahorizontalline.Thenumbers
represent(fromlefttoright)thenumberofincisors,
canines,premolarsandmolarsineitherhalfoftheupeer
andlowerjawse.e.,thedentalformulaofmanis 21232123
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Dentalformulaisusedtorepresentheterodontteeth
whicharepresentinmammalsonly.Itcannotbeusedto
represetndentitionofvartebratesotherthanmammals
astheyhavehomodontteeth.
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Q-4-17934580
Bile salts are poured into the alimentary canal where they are
necessary for the absorption of
(A)
(B)Fatsolublevitamis
(C)Aminoacidsandmonosaccharides
(D)Allthenutrientsareemulisifiedinchyme
CORRECTANSWER:B
Na + and Ca + +
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SOLUTION:
(b)Bilesalthepintheabsorptionoffatsandfatsoluble
vitaminsuchasA,D,EandKinintestine.
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Q-5-17934379
"Chief cells" or "Zymogen cells"
(A)Isthumusofthgland
(B)Neckofthetabulargland
(C)Baseofthetubularreigon
(D)Alltheabove
CORRECTANSWER:C
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Q-6-17934647
When breast feeding is replaced by less nutritive food low in
proteins and calories, the infants below the age of one year are
likely to suffer from
(A)Marasmus
(B)Rickets
(C)Kwashiorkor
(D)Pellagra
CORRECTANSWER:A
SOLUTION:
(a)Marasmusoccursduetoprolongedmalnutririonand
deficiencyofproteinsandcalories.
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Q-7-30696197
Epiglottis is meant for protecting
(A)Oesophagusfromentryofair
(B)Nasalchambersfromentryoffood
(C)Larynxfromentryoffood
(D)Teethfromcaries
CORRECTANSWER:C
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Q-8-30696220
The process involved in passage of food in the alimentary canal is
(A)work
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(B)Egestion
(C)Digestion
(D)Peristalsis
CORRECTANSWER:C
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Q-9-30696289
Zymogen cells of grastric glands produce
(A)Chymotrypsin
(B)Pepsin
(C)Pepsinogen
(D)Trypsin
CORRECTANSWER:C
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Q-10-30696305
Oxyntic cells in stomach secrete
(A)Pepsin
(B)Mucus
(C)HCL
(D)Rennin
CORRECTANSWER:C
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Q-11-30696663
Match the columns and find the correct combination
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(A)a-I,b-iii,c-ii,d-iv
(B)a-I,b-iv,c-iii,d-ii
(C)a-ii,b-iv,c-I,d-iii
(D)a-ii,b-iii,c-I,d-iv
CORRECTANSWER:C
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Q-12-30696879
Peristalsis occurs in
(A)Urethra
(B)Trachea
(a) Ptyalin (i) Lipids
(b) Pepsin (ii) Starch
(c) Steapsin (iii) DNA
(d) Nuclease (iv) Protien
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(C)Bloodvessels
(D)Alimentarycanal.
CORRECTANSWER:D
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Q-13-30970617
Phagocytic cells of liver are
(A)Acinarcell
(B)Deitercells
(C)Kupffer'scells
(D)Hensencells
CORRECTANSWER:B
SOLUTION:
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Phagocyticcellsofliverarekupffer'scells
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Q-14-30970633
The food mixed thoroughly with the acidic gastric juice of the
stomach by the churning movements of its muscular wall. What do
we call the food then?
(A)Bolus
(B)Chyle
(C)Chyme
(D)Chylomicron
CORRECTANSWER:C
SOLUTION:
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Thefoodmixesthoroughlywiththeacidicgasticejuice
ofthestomachbythechurningmovementsofits
muscularwallandiscalledthechyme.
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Q-15-30970642
The undigested and unabsorbed substances called faeces enters into
the caecum of large intestine through
(A)Pyloricsphincter
(B)Gastro-oesophagealsphincter
(C)Ileo-caecalvalve
(D)SphincterofOddi
CORRECTANSWER:C
SOLUTION:
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Theundigestedandunabsorbedsubstancescalled
faecesentersintothecaecumoflargeintestinethrough
ileo-caecalvalve.
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Q-16-30696301
Germs entering the body alongwith food are killed is alimentary
canal where pH is
(A)10
(B)7
(C)3
(D)11
CORRECTANSWER:C
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Q-17-30696266
In gluconeogenesis
(A)Glucoseisconvertedintoglycogen
(B)Glucoseisconvertedintoglucose
(C)Sugarareconvertedintofats
(D)Glucoseisformedfromnoncarbohydrates
CORRECTANSWER:D
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Q-18-30696204
Bile can be prevented to pass into duodenum by
(A)Pyloricvalve
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(B)SphincterofBoyden
(C)SphincterofOddi
(D)Cardiacsphincter
CORRECTANSWER:C
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Q-19-17934663
Glucose and amino acids are absorbed in the intestine by
(A)Activetransport
(B)Passivetransport
(C)Selectiveabsorption
(D)Osmosis
CORRECTANSWER:A
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Q-20-13956623
Which of the following statements are incorrect about
chylomicrons?
(i) Chylomicrosn are produced in the epthelial cells of small
intestine.
(ii) It contains trigycerides, chloesterol and phospholipids.
(iii) They are protein coated small vesicles.
(iv) Chylomicrons are released from the epithelial cell into lacteals/
(A)iandiv
(B)iiandiii
(C)i,ii,iiiandiv
(D)noneofthese
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CORRECTANSWER:D
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Q-21-17934563
The given flowchart shows the fate of carbohydrates during
digestion in the human alimentary canal. Identify the enzymes
acting at stages indicated as A,B,C and D and selct the correct
option.
(A)A=amylase,B=madltase,C=lactase,D=invertase
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(B)A=amylase,B=maltase,C=inbvertase,D=
lactase.
(C)A=amylase,B=invertase,C=maltase,D=lactase
(D)A=amylase,B=lactese,C=maltase,D=invertase
CORRECTANSWER:D
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Q-22-30696231
Marasmus is due to deficieny of
(A)vitaminPyridoxine
(B)VitaminD/Calcium/Phosphorus
(C)Food
(D)Fat
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CORRECTANSWER:C
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Q-23-30696300
Succes entericus is
(A)Swollenareabetweenileumandrectum
(B)Intestinejuice
(C)Anyswellingingut
(D)Vermiformappendix
CORRECTANSWER:B
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Q-24-30970648
Absence of enterokinase will affect the following process
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(A)Amylose Maltose
(B)Proteoses Dipeptide
(C)Lipid Fattyacid+Glycerol
(D)Dipeptide aminoacid
CORRECTANSWER:B
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Q-25-30696512
Dental formula shwos
(A)Structureofteeth
(B)Monophyodontordiphyodontcondition
(C)Numberandtypeofteethinbothjaws
(D)Numberandtypeofteethinonehalfofbothjaws.
→
→
→
→
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CORRECTANSWER:D
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Q-26-30696668
Lysozymes are found in
(A)Saliva
(B)Tears
(C)Bothsalivaandtears
(D)Mitochondria
CORRECTANSWER:C
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Q-27-30696691
Nutrition involving engulfment of whole or parts of a plant or
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animal in solid of liquid state is known as
(A)Holozoic
(B)Saprozoic
(C)Parasite
(D)Symbiotic
CORRECTANSWER:A
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Q-28-30970653
Carbohydrate digestion beings in
(A)Stomach
(B)Mouth
(C)Intestine
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(D)Alloftheabove
CORRECTANSWER:B
SOLUTION:
Carbohydratedigestionbeginsinmouthbysalivary
amylase.
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Q-29-30696260
The swallowing of food from buccopharyngeal cavity to stomach is
called
(A)DeglutitIon
(B)Masticaton
(C)Paristalsis
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(D)nonoftheabove
CORRECTANSWER:A
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Q-30-17934551
Trypsin differs from pepsin in that
(A)Itdigestproteininalkalinemediumwhilepepsin
doessoinacidicmedium
(B)Both(a)and(b)
(C)Noneofthese
CORRECTANSWER:A
SOLUTION:
(c)Bilejuiceconstantbilesaltsandbilepigments.
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Q-31-17934583
Which of the following option best respresents the enzyme
composition of panceratic juice
(A)Amylase,peptidase,trysinogen,rennin
(B)Amylase,pepsin,trypsinogen,maltase
(C)Peptidase,amylase,pepsin,rennin
(D)Lipase,amylase,trypsinogen,procarboxypeptidase
CORRECTANSWER:D
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Q-32-17934657
What is the common between amino acids, fatty acids and glycerol
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(A)Theseareallrichsourceofcalories
(B)Thesearethebuildersofprotoplasm
(C)Thesearetheendproductsofdigestionoftwo
categoriesoffoodconstituents
(D)Thesecanbestoredintheformoffat
CORRECTANSWER:C
SOLUTION:
(c)Proteinsarebrokendownintoaminoacidsduring
theprocessofdigestionandfinallyallfatsareconverted
intofattyacid,glycerolandmonoglycerides.
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Q-33-30696218
Chymotrypsin is a component of
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(A)Bile
(B)Pancreaticjuice
(C)Succusentericus
(D)Gastricjucie
CORRECTANSWER:B
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Q-34-30696520
Animals do not synthesis
(A)Protien
(B)Vitamins
(C)Glycogen
(D)Phospholipids
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CORRECTANSWER:B
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Q-35-30696699
A patient is advised to specially consume more meat ,lentil ,milk
and eggs in diet when the patient suffers from
(A)Kwashiorkor
(B)Scurvy
(C)Rickets
(D)Anaemia
CORRECTANSWER:A
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Q-36-30970636
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Among the following, how many enzymes are present in pancreatic
juice: Trypsinogen, amylases, lipases, nucleosidases, nucleases,
chymotrypsinogen, enterokinase, procarboxy peptidase
(A)5
(B)6
(C)7
(D)8
CORRECTANSWER:B
SOLUTION:
Enzymespresentinpancreaticjuiceare:
Trypsinogen,amylases,lipases,nucleases,
chymotrypsinogenandprocarboxy-peptidase.
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Q-37-30970661
Food bolus after passing through alkaline medium in the alimentary
canal is
(A)Chylomicron
(B)Chyme
(C)Chyle
(D)Fatbody
CORRECTANSWER:C
SOLUTION:
Foodbolusafterpassingthroughalkalinemediuminthe
alimentarycanalischyle.
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Q-38-30970671
Cellulose digestion in ruminants occurs in
(A)Rumen
(B)Omasum
(C)Abomasum
(D)Reticulum
CORRECTANSWER:A
SOLUTION:
Cellulosedigestioninruminants(cud-chewinganimals)
occursinrumen.
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Q-39-30696285
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A person with bleedindg gums should add to his daily diet
(A)VitaminA
(B)VitaminB
(C)VitaminC
(D)VitaminD
CORRECTANSWER:C
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Q-40-13956626
Which of the following statemetns is/are incorrect?
(i) Absroption of simple sugar, alcohol, some water and medicines
takes place in stomach.
(ii) Maximum water absorption occurs in large intestine.
(iii) Small intestine is the major site of digestion and absorption of
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food.
(iv) Fatty acid and glycerol are absorbed by lacteals.
(v) Nothing is absorbed in mouth and large intestine.
(A)i,ivandv
(B)vonly
(C)ivonly
(D)iiandiii
CORRECTANSWER:B
SOLUTION:
Inthemouthcertaindrugsareabsorbed.Inthelarge
intestine,water,somemineralsanddrugsareabsorbed.
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Q-41-17934378
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HCl is secreted by
(A)Zymogencells
(B)Oxynticcells
(C)Kupffercells
(D)Mucouscells
CORRECTANSWER:B
SOLUTION:
(b)Thfundicpartofstomachconsists2typeofcells,
chieforzymogeniccellsecretspepsinandoxynticor
parietalcellsecretesHCl.
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Q-42-17934584
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What will happen if the secretion of parietal cells of gastric glands
is blocked with an inhibitor?
(A)IntheabsenceofHClsecretion,inativepepsinogen
isnotconvertedintotheactiveenzymepepsin
(B)Enterokinasewillbenotbereleasedfromthe
duodenalmucosaandsotrypsinogenisnotconvertedto
trypsin
(C)Gastricjuicewillbedeficientinchymosin
(D)Gastricjuicewillbedeficientinpepsinogen
CORRECTANSWER:A
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Q-43-30696239
Digestion is completed in
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(A)Duodenum
(B)Ileum
(C)Stomach
(D)Cloaca
CORRECTANSWER:B
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Q-44-30696296
Stimulation of acid secretion of stomach is due to
(A)Gastrin
(B)Histamine
(C)vagalactivation
(D)Alltheabove
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CORRECTANSWER:D
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Q-45-30696309
Emulasification of fat is carried out by
(A)Bilepigments
(B)Bilesalts
(C)HCL
(D)Pancreaticjuie
CORRECTANSWER:B
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Q-46-30696696
Read the following statements and select the correct option.
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Statement 1 : The human small intestine is the longest portion in the
alimentary canal.
Statement 2: Absorption of digested food requires a very large
surface area.
(A)Statementaiscorrect,biswrong
(B)Statementaaswellasstatementbarecorrect
(C)Statementbiscorrectaiswrong
(D)Bothstatementarewrong
CORRECTANSWER:B
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Q-47-30970655
Prorennin is produced by
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(A)IsletsofLangerhans
(B)Zymogencells
(C)Sertolicells
(D)Hepatocytes
CORRECTANSWER:B
SOLUTION:
Prorenninisproducedbyzymogenorchieforpeptic
cells.
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Q-48-30970668
DNase and RNase enzymes produced by
(A)Salivaryglands
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(B)Pancreas
(C)Stomach
(D)Intestine
CORRECTANSWER:B
SOLUTION:
DNA-aseandRNA-ase(nucleases)enzymes
producedbypancreas.
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Q-49-30696243
Pancreas has double role of
(A)Storageanddigestion
(B)Digestionandabsorpton
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(C)Digestionandendocrineactivity
(D)Noneoftheabove
CORRECTANSWER:C
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Q-50-17934545
Rennin acts on milk proteins and converts
(A)Casinogenintocasien
(B)Caseinintoparacasein
(C)Caseinogenintoparacasein
(D)Paracaseinintocaseinogen
CORRECTANSWER:B
SOLUTION:
![Page 44: Download Doubtnut Now · Watch Video Solution On Doubtnut App Q-35 - 30696699 A patient is advised to specially consume more meat ,lentil ,milk and eggs in diet when the patient suffers](https://reader033.fdocuments.us/reader033/viewer/2022060517/60499b4811690977764e0cc4/html5/thumbnails/44.jpg)
(c)Thetrypsinenzymeispresentinpancreaticjuice
whichissecretedbypancreas.
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Q-51-13956636
Anxiety and eating spicy food together in an otherwise normal
human, may lead to
(A)indigestion
(B)jaundice
(C)diarrhoea
(D)vomiting.
CORRECTANSWER:A
SOLUTION:
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Indigestionisadisorderinwhichthefoodisnotproperly
digestedinthebodyleadingtoafellingoffullness.The
causesofthisareinadequateenzymesceretion,
anixiety.Foodpoisoning,overeatingandspicyfood.
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Q-52-13956536
Which of the following is not a salivary gland?
(A)Sublingual
(B)Submaxillary
(C)Lacrimal
(D)Parotid
CORRECTANSWER:C
SOLUTION:
![Page 46: Download Doubtnut Now · Watch Video Solution On Doubtnut App Q-35 - 30696699 A patient is advised to specially consume more meat ,lentil ,milk and eggs in diet when the patient suffers](https://reader033.fdocuments.us/reader033/viewer/2022060517/60499b4811690977764e0cc4/html5/thumbnails/46.jpg)
Lacrimalglandispresentintheeyeandsecretestears.
Itisnotasalivarygland.
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Q-53-17934362
The type of muscle present in the alimentary canal is
(A)Smoothmusclefibre
(B)Stripedmusclefibre
(C)Cardiacmusclefibre
(D)Bothaandb
CORRECTANSWER:A
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Q-54-17934696
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A pregnant female delivers a baby who suffers from stunted growth
, mental retardation, low intelligence quotient and abnormal skin.
This is the result of
(A)Oversecretionofparsdistalis
(B)Deficiencyofiodineindiet
(C)Lowsecretionofgrowthhormone
(D)Cancerofthethyroidgland
CORRECTANSWER:B
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Q-55-30696189
Monophyodont teeth occur in
(A)Humans
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(B)Forg
(C)Whale
(D)Rat
CORRECTANSWER:C
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Q-56-30696198
Cardiac sphicnter protects back flow of
(A)Foodintoesophagus
(B)Bloodintoheart
(C)Bloodintoauricle
(D)Bloodintovenacava
CORRECTANSWER:A
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Q-57-30696211
Mumps is infection of salivary glands
(A)Submandibular
(B)Submaxillary
(C)Sublingual
(D)Parotid
CORRECTANSWER:D
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Q-58-17934653
Liver necrosis and muscular dystrophy are caused by the lack of
this trace element
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(A)Arsenic
(B)Molybdenum
(C)Zinc
(D)Selenium
CORRECTANSWER:D
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Q-59-17934385
Which of the following is correct pairing of the site of action and
the substrate of renin
(A)Stomach-Casein
(B)Stomach-Fat
(C)SmallIntestine-Protein
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(D)Mouth-Starch
CORRECTANSWER:A
SOLUTION:
(a)Caseinisaphosphoproteinfoundinmilk.Itis
digestedbyreninenzyme.
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