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251.

Define the term thecodont dentition.

Answer» If tooth is embedded in a socket of jaw bone. Such type attachment is called thecodont dentition.
252.

Digestion is completed inA. DuodenumB. IleumC. StomachD. Cloaca

Answer» Correct Answer - B
253.

A normal human being requires how much calories per day?A. 2500 kcalB. 4000 kcalC. 5000 kcalD. 686 kcal

Answer» Correct Answer - A
254.

Maximum number of enzymes occur inA. OmnivoresB. HerbivoresC. CarnivoresD. None of the a bove

Answer» Correct Answer - A
255.

Maximum number of enzymes occur inA. OmnivoresB. HerbivoresC. CarinivoresD. None of above

Answer» Correct Answer - A
Maximum number of enzymes occur in omnivores.
256.

Maximum number of enzymes occur inA. OmnivoresB. HerbivoresC. CarnivoresD. None of the these

Answer» Correct Answer - A
257.

Excessive intake of alcohol causesA. JaundicB. DermatitisC. Liver cirrhosisD. Lung fibrosis

Answer» Correct Answer - C
258.

Excessive intake of alcohol causesA. JaundiceB. DerematitisC. Liver cirrhosisD. Lung fibrosis

Answer» Correct Answer - C
Excessive intake of alcohol causes liver cirrhosis.
259.

What is the role of vitamin K?

Answer» Promotes synthesis of prothrombin in the liver for blood clotting.
260.

Which one of the following four secreations is correctly matched with its source, target and nature of action? Secreation Source Target ActionA. Gastrin Stomach Oxyntic Production of HCIB. Inhibin Sertoli cells Hypothanlamus Inhibition of secretion of gonadotrophin releasing hormoneC. Enterokinase Duodenum Gall blandder Release of bile juiceD. Atrial Natriuritic factor (ANF) node (SAN M-cells of atria juxta glomerular apparatus (JGA) Inhibition of release of renin

Answer» Correct Answer - D
261.

In the given figure of human tooth, some parts are labelled as A,B,C and D identify these parts and mathc them with their description given below. (i) Contains mineral matter, mainly calcium 70% mineral maater, mainly calcium (iii) Hardest material in the body (iv) Connects root to the jawbone A. i,ii,iii,ivB. ii,iii,iv,iC. iii,ii,iv,iD. ii,iii,i,iv

Answer» Correct Answer - D
Pulp cavity (ii) dentine
(iii) Enamel (iv) Cement
262.

The given dissection figure shows the blood vessels in liver tissue. The three main blood vessels are indicated by capital letters (A-C). Following statements describe properties of blood that flows through these blood vessesl. For each description, indicate the vessel where that blood would be found. (i) Blood with the highest oxygen content. (ii) Blood that contains newly absorbed nutrients. (iii) Deoxygenated blood. A. i-A,ii-C,iii-BB. i-A,ii-B,iii-CC. i-C,ii-A,iii-BD. i-C,ii-B,iii-A

Answer» Correct Answer - B
A,B and C in the diagram represent hepatic artery, hepatic portal vein and hepatic vein respectively.
263.

List the fat-soluble vitamins.

Answer» Correct Answer - A,D,E and K
264.

Which of the following vitamins is water soluble as well as an anti-oxidantA. Vitamin `B_(1)`B. Vitamin AC. Vitamin DD. Vitamin C

Answer» Correct Answer - D
265.

Water soluble vitamins areA. C and DB. A and CC. B and CD. A and D

Answer» Correct Answer - C
266.

Observe the given figure having arrows to illustrate the movement of abosrbed food in the body select the correct option regarding it. A. `{:("Sugars",underset("acids")("Amino"),underset("glycerol")("Fat/fatty acids/")),("X Y","X Y"," X Y"),(sqrt""" " xx ,""xx xx," "sqrt"" " "sqrt""):}`B. `{:("Sugars",underset("acids")("Amino"),underset("glycerol")("Fat/fatty acids/")),("X Y","X Y"," X Y"),(sqrt""" "xx,sqrt""" "xx," "xx " "sqrt""):}`C. `{:("Sugars",underset("acids")("Amino"),underset("glycerol")("Fat/fatty acids/")),("X Y","X Y"," X Y"),(xx" "sqrt"",xx" "sqrt""," "xx " "sqrt""):}`D. `{:("Sugars",underset("acids")("Amino"),underset("glycerol")("Fat/fatty acids/")),("X Y","X Y"," X Y"),(sqrt""" "sqrt"",xx""xx," "sqrt"" " "sqrt""):}`

Answer» Correct Answer - B
In the given figure X represents hepatic protal vein and Y represents thoracic duct. All sugars and amino acids are taken up into the bloodc capillaries and transporte d to liver via hepatic portal vein. However, the products of lipid digestioon are mostly absorbed into the lymphatic system. They enter the lacteal vesel and are tranported via the thoracic duct into the bloodstream in the region of the neck.
267.

Mention the vestigial part of the human alimentary cannal.

Answer» Veriform appendix.
268.

Which of the following statements are correct regarding secretion oxynthic cells? (i) It denatures proteins and softens fibrous connective tissues in the blood. (ii) It activates rennin. (iii) It has a role in maturation of RBCs. (iv) It activates trypsin.A. I and ivB. ii,iii and ivC. I,ii and iiiD. I,ii,iv

Answer» Correct Answer - C
Secretions of oxyntic cells includes hydrochloric acid (HCl) and intrinsic factor. HCL has a role in denaturing proteins, activating rennin and provideing optimum pH for pepsin. Intrinsic factor has a role in abosrption of vitamin `B_(12)`. This vitamin is essential for proper maturation of RBCs.
269.

Which vestigial organ from caecum in humans?

Answer» Vermiform appendix arises from caecum in human.
270.

The stomach of humans is considered : (i) Simple or (ii) Compound

Answer» Correct Answer - Simple.
271.

Tick mark the false statement.A. About `60%` starch is hydrolysed in buccal cavity by the enzyme salivary amylaseB. Salivary amylase acts on starch and is converted into maltoseC. Salivary amylase acts at optimum ph 6.8D. Stomach stores the food for 4-5 hours

Answer» Correct Answer - A
272.

During swallowing _________ prevents food from entering wind pipe and ______ prevents it from entering nasal cavity.

Answer» Correct Answer - Epiglottis, uvula.
273.

Which sphincter will prevent regurgitation of food into oesophagus?

Answer» Gastroesophageal sphincter.
274.

Dental formula for elephant isA. 1003/003B. 2121/2023C. 2023/213D. 2133/2033

Answer» Correct Answer - A
275.

Which part among the following prevents the passage of air into oesophagus during breathing?A. VentriculusB. CorpusC. Cricopharyngeal sphincterD. Cardiac sphincter

Answer» Correct Answer - C
276.

Which is the largest part of stomach?A. Cardiac ventricullB. Corpus ventricullC. Fundus or fornie ventriculiD. Poloric antrum

Answer» Correct Answer - B
277.

The diameter of duodenum is aboutA. 4.0-4.5 cmB. 3.0-3.2 cmC. 1.1-2.1 cmD. None of these

Answer» Correct Answer - A
278.

The widest part of large intestine isA. rectumB. colonC. caeciumD. vermiform appendix

Answer» Correct Answer - C
279.

What is incorrect about oesophagus or food pipe?A. It is about 23-27 cm longB. It involved in deglutitionC. It lies behind the trachea and the lungsD. It pierces the diaphragm to enter the abdomen through hiatus.

Answer» Correct Answer - C
280.

The small pouches present in the colon are calledA. taeniae cellB. naustraC. colidextaD. flexura coli sensustra

Answer» Correct Answer - B
281.

Saliva convertsA. proteins into amino acidsB. glycogen into glucoseC. starch into maltoseD. fats into vitamins

Answer» Correct Answer - C
282.

Rennim enzyme occurs in the gastric juice ofA. CalfB. Human adultsC. Human infantsD. Both A and C

Answer» Correct Answer - D
283.

If pH of stomach is 1.6, then which enzyme wil digest protein?A. TrypsinB. PepsinC. amylaseD. Erypsin

Answer» Correct Answer - B
Pepsin is present in gastric juice. It acts on protein at 1.2-1.8 pH and breks them down into peptones.
284.

Structure that convert sound vibrations into nerve impulses is calledA. Basilar membraneB. Organ of CortiC. CochleaD. Vestibular apparatus

Answer» Correct Answer - B
structure that convert sound virbrations into nerve impules is called organ of corti.
285.

Identify the correct setA. Ptyalin -intestine -maltoseB. Pepsin -stomach wall-caseinC. Chymotrpsin-salivery glands -lactoseD.

Answer» Correct Answer - B
286.

Anser simply as, a,b,c or d (i) Sucrase in an enzyme found in (a) Saliva (b) Gastric juic (c ) Intertinal juice (d) Panceatic juice (ii) Most digestion occurs in(a) Mouth (b) stomach (c ) small intestine (d) Large intestine (iii) What is the substrate of salivary amylase? (a) Protein (b) starch (c) Glucose (d) maltose (iv) The funcitons of bile are listed below. Pick out the false statement (a) Bie neutralses the acidic of food (b) It provides an alkaline medium for the interstinal proteases (c ) It contains a lipase (d) Its salt emulsify fats.

Answer» (i) c, (ii) c, (iii) b, (iv) c
287.

Odontoblasts produceA. DentinB. CementC. EnamelD. Peridontal membrane

Answer» Correct Answer - A
288.

What is choecystokininA. Bile pigmentsB. Gastro-intestinal hormoneC. EnzymeD. Lipid

Answer» Correct Answer - B
289.

The enzyme present in saliva isA. MaltaseB. PtyalinC. SucraseD. lnvertase

Answer» Correct Answer - B
290.

Puple cavity of theeth opensA. Below the teethB. In front of teethC. Behind the teethD. none of the above

Answer» Correct Answer - A
291.

Salivary amylase convert ____into____

Answer» Correct Answer - Starch , maltose
292.

Which one of the following hormones inhibits gastric secretionA. EnterogastroneB. GIPC. Both (I) and (2)D. Enterocrinin

Answer» Correct Answer - C
293.

The tongue is a freely movable muscular organ attached to the floor of the oral cavity by the ____

Answer» Correct Answer - frenulum
294.

The metal present in vitamin `B_(12)` isA. CobaltB. CopperC. ZincD. Magnesium

Answer» Correct Answer - A
295.

The tongue is a freely movable muscular organ atteched to the floor of the oral cavity by theA. papillaeB. fenestraeC. enamelD. frenulun

Answer» Correct Answer - D
The tongue is a freely movable muscular organ at-tached to the floor of the oral cavity by the frenulum.
296.

Recognise the figure and find out the correct matching. A. a-duodenum, c-jejunum, d-ileum, b-pancreas, f-caecum, e-vermiform appendixB. b-duodenum, c-jejunum, d-ileum, a-pancreas, e-caecum, f-vermiform appendixC. b-duodenum, d-jejunum, c-ileum, a-pancreas, e-caecum, f-vermiform appendixD. a-duodenum, b-jejunum, c-ileum, d-pancreas, f-caecum, e-vermiform appendix

Answer» Correct Answer - B
See Answer for Q5
297.

Teeth of rabbits areA. ThecodontB. DiphyodontC. HeterodontD. All of these

Answer» Correct Answer - D
298.

How are gall stones formed? How do the gall stones affect the patient?

Answer» Combination of cholesterol crystals with bile salts and bile pigments forms gall stones. Gall stones block the bile duct. This causes pain, failure of fat digestion, and absorption of bile into blood leading to jaundice (yellowing of skin and eyes).
299.

The digestive glands associated with the digestive system includesA. Salivary glandsB. Gastric glandsC. LiverD. Pancreas

Answer» Correct Answer - C
The digestive glands associated with the alimentary canal includes salivary glands, liver and pancreas.
300.

Taeniae colic are constituensts ofA. IleumB. CaecumC. RectumD. Colon

Answer» Correct Answer - A