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<h2>NEET Biology Practice Test 30</h2><p>30 MCQs | Timer: 25 Minutes</p><div id="timer">25:00</div><form id="quiz">
<div class='q'><b>Q1. The richest source of Vitamin B12 is</b><br><label><input type='radio' name='q0' value='0'> Goat's liver</label><br><label><input type='radio' name='q0' value='1'> Chocolate</label><br><label><input type='radio' name='q0' value='2'> Rice</label><br><label><input type='radio' name='q0' value='3'> Carrot</label><br></div><div class='q'><b>Q2. Gall bladder contracts due to</b><br><label><input type='radio' name='q1' value='0'> Gastrin</label><br><label><input type='radio' name='q1' value='1'> Cholecystokinin</label><br><label><input type='radio' name='q1' value='2'> Secretin</label><br><label><input type='radio' name='q1' value='3'> Kinase</label><br></div><div class='q'><b>Q3. Infant defecation occurs by</b><br><label><input type='radio' name='q2' value='0'> Reflex without voluntary control</label><br><label><input type='radio' name='q2' value='1'> Reflex with voluntary control</label><br><label><input type='radio' name='q2' value='2'> Voluntary relaxation</label><br><label><input type='radio' name='q2' value='3'> Internal sphincter only</label><br></div><div class='q'><b>Q4. Deficiency of tocopherol causes</b><br><label><input type='radio' name='q3' value='0'> Beri-beri</label><br><label><input type='radio' name='q3' value='1'> Pellagra</label><br><label><input type='radio' name='q3' value='2'> Infertility</label><br><label><input type='radio' name='q3' value='3'> Scurvy</label><br></div><div class='q'><b>Q5. Brunner's glands are located in</b><br><label><input type='radio' name='q4' value='0'> Oesophagus</label><br><label><input type='radio' name='q4' value='1'> Intestine</label><br><label><input type='radio' name='q4' value='2'> Stomach</label><br><label><input type='radio' name='q4' value='3'> Duodenum</label><br></div><div class='q'><b>Q6. Correct order of food processing</b><br><label><input type='radio' name='q5' value='0'> Ingestion→Digestion→Absorption→Assimilation→Egestion</label><br><label><input type='radio' name='q5' value='1'> Ingestion→Assimilation→Digestion</label><br><label><input type='radio' name='q5' value='2'> Digestion first</label><br><label><input type='radio' name='q5' value='3'> None</label><br></div><div class='q'><b>Q7. Stored food in animals is</b><br><label><input type='radio' name='q6' value='0'> Cellulose</label><br><label><input type='radio' name='q6' value='1'> Starch</label><br><label><input type='radio' name='q6' value='2'> Glucose</label><br><label><input type='radio' name='q6' value='3'> Glycogen</label><br></div><div class='q'><b>Q8. Vitamin C is</b><br><label><input type='radio' name='q7' value='0'> Fat soluble</label><br><label><input type='radio' name='q7' value='1'> Water soluble antioxidant</label><br><label><input type='radio' name='q7' value='2'> Hormone</label><br><label><input type='radio' name='q7' value='3'> Mineral</label><br></div><div class='q'><b>Q9. HCl is secreted by</b><br><label><input type='radio' name='q8' value='0'> Chief cells</label><br><label><input type='radio' name='q8' value='1'> Parietal cells</label><br><label><input type='radio' name='q8' value='2'> Goblet cells</label><br><label><input type='radio' name='q8' value='3'> Peptic cells</label><br></div><div class='q'><b>Q10. Narrow extensions of pulp cavity are</b><br><label><input type='radio' name='q9' value='0'> Pulp</label><br><label><input type='radio' name='q9' value='1'> Dentine</label><br><label><input type='radio' name='q9' value='2'> Root canals</label><br><label><input type='radio' name='q9' value='3'> Ligaments</label><br></div><div class='q'><b>Q11. Jaundice causes yellow eyes due to</b><br><label><input type='radio' name='q10' value='0'> Bile pigments</label><br><label><input type='radio' name='q10' value='1'> Vomiting</label><br><label><input type='radio' name='q10' value='2'> Stomach</label><br><label><input type='radio' name='q10' value='3'> Acid</label><br></div><div class='q'><b>Q12. Fat soluble vitamin causing xerophthalmia if deficient</b><br><label><input type='radio' name='q11' value='0'> Vitamin C</label><br><label><input type='radio' name='q11' value='1'> Vitamin A</label><br><label><input type='radio' name='q11' value='2'> Vitamin B12</label><br><label><input type='radio' name='q11' value='3'> Vitamin K</label><br></div><div class='q'><b>Q13. Digestion of carbohydrates starts in</b><br><label><input type='radio' name='q12' value='0'> Stomach</label><br><label><input type='radio' name='q12' value='1'> Mouth</label><br><label><input type='radio' name='q12' value='2'> Duodenum</label><br><label><input type='radio' name='q12' value='3'> Jejunum</label><br></div><div class='q'><b>Q14. Fat soluble vitamin is</b><br><label><input type='radio' name='q13' value='0'> Vitamin C</label><br><label><input type='radio' name='q13' value='1'> Vitamin B</label><br><label><input type='radio' name='q13' value='2'> Vitamin H</label><br><label><input type='radio' name='q13' value='3'> Vitamin D</label><br></div><div class='q'><b>Q15. Bacteria mainly found in</b><br><label><input type='radio' name='q14' value='0'> Caecum</label><br><label><input type='radio' name='q14' value='1'> Rectum</label><br><label><input type='radio' name='q14' value='2'> Colon</label><br><label><input type='radio' name='q14' value='3'> Stomach</label><br></div><div class='q'><b>Q16. Islets of Langerhans are in</b><br><label><input type='radio' name='q15' value='0'> Pancreas</label><br><label><input type='radio' name='q15' value='1'> Liver</label><br><label><input type='radio' name='q15' value='2'> Stomach</label><br><label><input type='radio' name='q15' value='3'> Duodenum</label><br></div><div class='q'><b>Q17. Hardest body material</b><br><label><input type='radio' name='q16' value='0'> Bone</label><br><label><input type='radio' name='q16' value='1'> Enamel</label><br><label><input type='radio' name='q16' value='2'> Dentine</label><br><label><input type='radio' name='q16' value='3'> Tooth</label><br></div><div class='q'><b>Q18. Digestive enzymes are</b><br><label><input type='radio' name='q17' value='0'> Hydrolases</label><br><label><input type='radio' name='q17' value='1'> Lyases</label><br><label><input type='radio' name='q17' value='2'> Transferases</label><br><label><input type='radio' name='q17' value='3'> Oxidoreductases</label><br></div><div class='q'><b>Q19. Scurvy is due to deficiency of</b><br><label><input type='radio' name='q18' value='0'> Vitamin A</label><br><label><input type='radio' name='q18' value='1'> Vitamin B</label><br><label><input type='radio' name='q18' value='2'> Vitamin E</label><br><label><input type='radio' name='q18' value='3'> Vitamin C</label><br></div><div class='q'><b>Q20. Lacteals are found in</b><br><label><input type='radio' name='q19' value='0'> Salivary glands</label><br><label><input type='radio' name='q19' value='1'> Villi</label><br><label><input type='radio' name='q19' value='2'> Spleen</label><br><label><input type='radio' name='q19' value='3'> Mammary glands</label><br></div><div class='q'><b>Q21. Pepsin becomes inactive above pH</b><br><label><input type='radio' name='q20' value='0'> 2</label><br><label><input type='radio' name='q20' value='1'> 3</label><br><label><input type='radio' name='q20' value='2'> 5</label><br><label><input type='radio' name='q20' value='3'> 7</label><br></div><div class='q'><b>Q22. FAD is derived from</b><br><label><input type='radio' name='q21' value='0'> Riboflavin</label><br><label><input type='radio' name='q21' value='1'> Niacin</label><br><label><input type='radio' name='q21' value='2'> Thiamine</label><br><label><input type='radio' name='q21' value='3'> Vitamin C</label><br></div><div class='q'><b>Q23. Food mixed with gastric juice is</b><br><label><input type='radio' name='q22' value='0'> Bolus</label><br><label><input type='radio' name='q22' value='1'> Chyme</label><br><label><input type='radio' name='q22' value='2'> Chyle</label><br><label><input type='radio' name='q22' value='3'> Faeces</label><br></div><div class='q'><b>Q24. Passage for food and air</b><br><label><input type='radio' name='q23' value='0'> Larynx</label><br><label><input type='radio' name='q23' value='1'> Pharynx</label><br><label><input type='radio' name='q23' value='2'> Glottis</label><br><label><input type='radio' name='q23' value='3'> Trachea</label><br></div><div class='q'><b>Q25. Diphyodont dentition occurs in</b><br><label><input type='radio' name='q24' value='0'> Snake</label><br><label><input type='radio' name='q24' value='1'> Horse</label><br><label><input type='radio' name='q24' value='2'> Elephant</label><br><label><input type='radio' name='q24' value='3'> Crocodile</label><br></div><div class='q'><b>Q26. Ptyalin is inactivated by</b><br><label><input type='radio' name='q25' value='0'> Pepsin</label><br><label><input type='radio' name='q25' value='1'> Mucus</label><br><label><input type='radio' name='q25' value='2'> Rennin</label><br><label><input type='radio' name='q25' value='3'> HCl</label><br></div><div class='q'><b>Q27. Pylorus is between</b><br><label><input type='radio' name='q26' value='0'> Small & large intestine</label><br><label><input type='radio' name='q26' value='1'> Stomach & duodenum</label><br><label><input type='radio' name='q26' value='2'> Oesophagus & stomach</label><br><label><input type='radio' name='q26' value='3'> Pancreas & intestine</label><br></div><div class='q'><b>Q28. Incisors are used for</b><br><label><input type='radio' name='q27' value='0'> Grinding</label><br><label><input type='radio' name='q27' value='1'> Cutting</label><br><label><input type='radio' name='q27' value='2'> Tearing</label><br><label><input type='radio' name='q27' value='3'> Crushing</label><br></div><div class='q'><b>Q29. Glisson's capsule is found in</b><br><label><input type='radio' name='q28' value='0'> Kidney</label><br><label><input type='radio' name='q28' value='1'> Liver</label><br><label><input type='radio' name='q28' value='2'> Stomach</label><br><label><input type='radio' name='q28' value='3'> Testis</label><br></div><div class='q'><b>Q30. Vitamin K deficiency causes</b><br><label><input type='radio' name='q29' value='0'> Scurvy</label><br><label><input type='radio' name='q29' value='1'> Night blindness</label><br><label><input type='radio' name='q29' value='2'> Bleeding</label><br><label><input type='radio' name='q29' value='3'> Osteomalacia</label><br></div><p>Password to view answers: <input type="password" id="pw"></p><button type="button" onclick="submitQuiz()">Submit</button></form><div id="out"></div><script>let t=1500;const a=[0,1,0,2,3,0,3,1,1,2,0,1,1,3,2,0,1,0,3,1,2,0,1,1,1,3,1,1,1,2];let iv=setInterval(()=>{let m=Math.floor(t/60),s=t%60;timer.innerText=`${m}:${String(s).padStart(2,'0')}`;if(t--<=0){clearInterval(iv);submitQuiz();}},1000);function submitQuiz(){clearInterval(iv);let sc=0;for(let i=0;i<30;i++){let x=document.querySelector('input[name=q'+i+']:checked');if(x&&+x.value===a[i])sc++;}let h='<h3>Score: '+sc+'/30</h3>';if(document.getElementById('pw').value==='admin123'){const l='A,B,A,C,D,A,D,B,B,C,A,B,B,D,C,A,B,A,D,B,C,A,B,B,B,D,B,B,B,C'.split(',');h+='<h4>Correct Answers</h4><ol>';for(let i=0;i<30;i++)h+='<li>'+l[i]+'</li>';h+='</ol>';}else h+='<p>Wrong password. 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