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MCQOPTIONS
This section includes 14620 Mcqs, each offering curated multiple-choice questions to sharpen your NEET knowledge and support exam preparation. Choose a topic below to get started.
| 1551. |
The below diagram represents a section of small intestinal mucosa showing villi. Identify 1, 2, 3 and 4. |
| A. | 1-Villi, 2-Lacteal, 3-Capillaries, 4-Crypts |
| B. | 1-Lacteal, 2-Villi, 3-Capillaries, 4-Crypts |
| C. | 1-Villi, 2-Lacteal, 3-Crypts, 4-Capillaries |
| D. | 1-Crypts, 2-Lacteal, 3-Capillaries, 4-Villi |
| Answer» B. 1-Lacteal, 2-Villi, 3-Capillaries, 4-Crypts | |
| 1552. |
The innermost layer of the digestive tract is the: |
| A. | Serosa membrane |
| B. | Mucosa membrane |
| C. | Submucosa membrane |
| D. | Lumen |
| Answer» C. Submucosa membrane | |
| 1553. |
Which of the following are reabsorbed in the alimentary canal as such? |
| A. | Albumen of egg |
| B. | Polysaccharides |
| C. | Proteins |
| D. | Fat soluble vitamins |
| Answer» E. | |
| 1554. |
DNase and RNase are enzymes secreted by: |
| A. | Pancreas |
| B. | Stomach |
| C. | Gallbladder |
| D. | Intestine |
| Answer» B. Stomach | |
| 1555. |
Man cannot digest cellulose, whereas cow and other herbivorous animals can because: |
| A. | They have enzyme cellulose in their stomach. |
| B. | They masticate it well by chewing teeth. |
| C. | They have bacteria in their alimentary canal which digest cellulose. |
| D. | None of the above |
| Answer» D. None of the above | |
| 1556. |
Small intestine is distinguishable into 3 parts, a 'U' shaped____, a long coiled middle portion ____ and a highly coiled ____. |
| A. | Ileum, jejunum, duodenum |
| B. | Jejunum, duodenum, ileum |
| C. | Duodenum, jejunum, ileum |
| D. | Caecum, duodenum, ileum |
| Answer» D. Caecum, duodenum, ileum | |
| 1557. |
Duct leading from parotid gland and opening into vestibule is: |
| A. | Wharton's duct |
| B. | Stensen's duct |
| C. | Wolffian duct |
| D. | Infra-orbital |
| Answer» C. Wolffian duct | |
| 1558. |
Pylorus occurs between: |
| A. | Ileum and rectum |
| B. | Duodenum and ileum |
| C. | Stomach and duodenum |
| D. | Oesophagus and stomach |
| Answer» D. Oesophagus and stomach | |
| 1559. |
A carbohydrate splitting enzyme is secreted by |
| A. | Liver |
| B. | Zymogen cells of gastric glands |
| C. | Salivary glands |
| D. | Crypts of Lieberkuhn |
| Answer» D. Crypts of Lieberkuhn | |
| 1560. |
In which part of gut, proteins ultimately degraded to amino acids? |
| A. | Small intestine |
| B. | Colon |
| C. | Stomach |
| D. | Caecum |
| Answer» B. Colon | |
| 1561. |
Vermiform appendix is made up of: |
| A. | Digestive tissue |
| B. | Respiratory tissue |
| C. | Excretory tissue |
| D. | Lymphatic tissue |
| Answer» E. | |
| 1562. |
Herbivorous animals can digest cellulose because: |
| A. | Their molar and premolar teeth can crush and grind the food. |
| B. | Bacteria present in their caecum help in digestion of cellulose. |
| C. | Gastric juice has a digestive enzyme for cellulose digestion. |
| D. | Alimentary canal is very long. |
| Answer» C. Gastric juice has a digestive enzyme for cellulose digestion. | |
| 1563. |
When a piece of bread is chewed, it tastes sweet because: |
| A. | The sugar contents are drawn out. |
| B. | Saliva converts starch into maltose. |
| C. | It does not taste sweet. |
| D. | The taste buds are stimulated by chewing. |
| Answer» C. It does not taste sweet. | |
| 1564. |
Meals which are rich in fat are not digested in the intestine in absence of: |
| A. | Pepsin |
| B. | Enterokinase |
| C. | Insulin |
| D. | Steapsin |
| Answer» E. | |
| 1565. |
Contraction of gall bladder is induced by: |
| A. | Gastrin |
| B. | Cholecystokinin |
| C. | Secretin |
| D. | Enterogastrone |
| Answer» C. Secretin | |
| 1566. |
The lymph vessels called lacteals, are found in: |
| A. | Mammary glands |
| B. | Pancreas |
| C. | Mucosa of intestine |
| D. | Villi of ileum |
| Answer» E. | |
| 1567. |
The below diagram represents the T.S. of gut. Identify 1, 2, 3 and 4 |
| A. | 1 - Serosa; 2 - Muscularis; 3 - Submucosa; 4 ? Mucosa |
| B. | 1 - Muscularis; 2 - Serosa; 3 - Submucosa; 4 ? Mucosa |
| C. | 1 - Serosa; 2 - Muscularis; 3 - Mucosa; 4 ? Submucosa |
| D. | 1 - Serosa; 2 - Submucosa; 3 - Muscularis; ? Mucosa |
| Answer» B. 1 - Muscularis; 2 - Serosa; 3 - Submucosa; 4 ? Mucosa | |
| 1568. |
Trypsinogen is produced by: |
| A. | Liver |
| B. | Duodenum |
| C. | Stomach |
| D. | Pancreas |
| Answer» E. | |
| 1569. |
Which of the following food reserves would be first used in a starving person? |
| A. | Muscle proteins |
| B. | Skin adipose tissue |
| C. | Liver glycogen |
| D. | Liver proteins |
| Answer» D. Liver proteins | |
| 1570. |
Hydrolysis of phospholipids yield: |
| A. | Glycerol, phosphoric acid and fatty acids. |
| B. | Glycerol, phosphoric acid and nitrogen base. |
| C. | Glycerol & fatty acids. |
| D. | Acetyl coA. |
| Answer» B. Glycerol, phosphoric acid and nitrogen base. | |
| 1571. |
Glottis is a structure which: |
| A. | Prevents entry of food into windpipe during swallowing food. |
| B. | Allows food to pass into oesophagus. |
| C. | Produces sound as air is forced through it. |
| D. | Allows air to enter in trachea. |
| Answer» E. | |
| 1572. |
Digestion of proteins, fats and carbohydrate is completed in: |
| A. | Stomach |
| B. | Duodenum |
| C. | Ileum |
| D. | None of these |
| Answer» D. None of these | |
| 1573. |
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 |
| Answer» D. Salivary glands | |
| 1574. |
The deficiency of which vitamin is known to cause abortion in early pregnancy of rat? |
| A. | Retinol |
| B. | Calciferol |
| C. | Tocopherol |
| D. | Napthoquinone |
| Answer» D. Napthoquinone | |
| 1575. |
The structure which prevents entry of food into windpipe during swallowing in mammals is: |
| A. | Larynx |
| B. | Pharynx |
| C. | Glottis |
| D. | Epiglottis |
| Answer» E. | |
| 1576. |
Ptyalin cannot work in stomach, because it is: |
| A. | Inactivated by pepsin. |
| B. | Inactivated by HCI. |
| C. | Carbohydrate - digesting enzyme. |
| D. | Inactivated by rennin. |
| Answer» C. Carbohydrate - digesting enzyme. | |
| 1577. |
Which is the best source for vitamin Bi? |
| A. | Cod liver oil |
| B. | Egg |
| C. | Whole wheat bread |
| D. | Curd |
| Answer» D. Curd | |
| 1578. |
Physiologically, vitamin E is known to be: |
| A. | Anti-inflammatory |
| B. | A powerful antioxidant |
| C. | An important co-enzyme |
| D. | Anti-hypertensive factor |
| Answer» C. An important co-enzyme | |
| 1579. |
Liver cells secrete: |
| A. | Amylopsin |
| B. | Trypsin |
| C. | Bile and no enzymes |
| D. | Lipase |
| Answer» E. | |
| 1580. |
How would you expect the digestive system of a hawk, a carnivore, to be compared with that of a sparrow, a seed-eater? |
| A. | The hawk would have a larger gastrovascular cavity. |
| B. | The sparrow's digestive system would be longer. |
| C. | The hawk would have a gizzard, but the sparrow would not. |
| D. | The hawk's digestive system would be longer. |
| Answer» C. The hawk would have a gizzard, but the sparrow would not. | |
| 1581. |
Intestinal villi are more numerous and larger in posterior part of small intestine than in anterior part because: |
| A. | Digestion is faster in posterior part. |
| B. | Blood supply is poorer in anterior part. |
| C. | Blood supply is poorer in posterior part. |
| D. | There is more of digested food in posterior part. |
| Answer» E. | |
| 1582. |
The centre of hunger or centre which regulates the amount of food we eat or our appetite is located in: |
| A. | Medulla |
| B. | Cerebrum |
| C. | Hypothalamus |
| D. | Alimentary canal |
| Answer» D. Alimentary canal | |
| 1583. |
Which one is essential for DNA replication or cell division? |
| A. | Vit. E |
| B. | Folic acid |
| C. | Vit. K |
| D. | Vit. D |
| Answer» C. Vit. K | |
| 1584. |
True stomach in cud-chewing animals is: |
| A. | Abomasum |
| B. | Reticulum |
| C. | Omasum |
| D. | Rumen |
| Answer» B. Reticulum | |
| 1585. |
Which of the following vitamin is essential for normal vision? |
| A. | Folic acid |
| B. | Biotin |
| C. | Riboflavin |
| D. | Niacin |
| Answer» D. Niacin | |
| 1586. |
How does a gastrovascular cavity differ from an alimentary canal? The gastrovascular cavity |
| A. | Stores food but does not digest it. |
| B. | Is usually much larger. |
| C. | Has only one opening. |
| D. | Functions in digestion but not absorption. |
| Answer» D. Functions in digestion but not absorption. | |
| 1587. |
Cod liver oil is a good source of: |
| A. | Vitamin B |
| B. | Vitamin C |
| C. | Vitamin A |
| D. | Iodine |
| Answer» D. Iodine | |
| 1588. |
Vitamin needed for blood coagulation is: |
| A. | E |
| B. | D |
| C. | K |
| D. | C |
| Answer» D. C | |
| 1589. |
The enormously long tusks in elephant are: |
| A. | Upper incisors |
| B. | Upper canines |
| C. | Lower canines |
| D. | Lower incisors |
| Answer» B. Upper canines | |
| 1590. |
If the epiglottis does not function correctly, then what will happen to the human being? |
| A. | One might congest. |
| B. | Peristalsis will discontinue. |
| C. | Acid reflux disease will damage the oesophagus. |
| D. | Swallowing will be difficult or impossible. |
| Answer» B. Peristalsis will discontinue. | |
| 1591. |
Directions (Qs. 103 and 104): The given diagram shows the duct systems of liver, gall bladder and pancreas in which few structures are marked as 1, 2, 3 and 4. On the basis of this figure, answer the questions. Sphincter of Oddi controls the flow of digestive juice by guarding which duct? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 1592. |
Directions (Qs. 103 and 104): The given diagram shows the duct systems of liver, gall bladder and pancreas in which few structures are marked as 1, 2, 3 and 4. On the basis of this figure, answer the questions. Which two ducts are responsible for the formation of a duct that carry bile from the gall bladder and conduct it into the first section of the small intestine? |
| A. | 1 and 2 |
| B. | 2 and 3 |
| C. | 3 and 4 |
| D. | 4 and 1 |
| Answer» E. | |
| 1593. |
Jaundice is yellowing of the skin due to accumulation of bilirubin and/or other products of haemoglobin breakdown. Bilirubin is formed in the blood but is further transformed by the liver and excreted in the bile. Which of the following is a cause of jaundice? |
| A. | Excessive fragility of RBC |
| B. | Hepatitis and gall stones |
| C. | Cancer of pancreas |
| D. | All of the above |
| Answer» E. | |
| 1594. |
Colostomy is the removal of large parts of the colon. The principal effect of a colostomy is: |
| A. | Diarrhoea |
| B. | Constipation |
| C. | Increased loss of bile pigments |
| D. | Kwashiorkor and marasmus |
| Answer» B. Constipation | |
| 1595. |
Which of the following is the correct chronological order for flow of food from mouth to anus? |
| A. | Oesophagus \[\to \]Stomach\[\to \]Small intestine\[\to \]Large Intestine |
| B. | Large intestine\[\to \]Oesophagus\[\to \]Stomach \[\to \]Small Intestine |
| C. | Small intestine\[\to \]Large intestine\[\to \] Oesophagus \[\to \] Stomach |
| D. | Stomach \[\to \]Small intestine \[\to \] Large intestine \[\to \] Oesophagus |
| Answer» B. Large intestine\[\to \]Oesophagus\[\to \]Stomach \[\to \]Small Intestine | |
| 1596. |
The lamina propria and muscularis mucosa belong to: |
| A. | Serosa |
| B. | Sub mucosa |
| C. | Mucosa |
| D. | None of these |
| Answer» D. None of these | |
| 1597. |
Which of the following hormones is a cholesterol- derivative? |
| A. | Estrogen |
| B. | Prostaglandin |
| C. | Epinephrine |
| D. | All of these |
| Answer» B. Prostaglandin | |
| 1598. |
Which of the following exerts control over all the others? |
| A. | Adrenal cortex |
| B. | Hypothalamus |
| C. | Thyroid gland |
| D. | anterior pituitary |
| Answer» C. Thyroid gland | |
| 1599. |
In human, adult females oxytocin: |
| A. | Is secreted by anterior pituitary. |
| B. | Stimulates growth of mammary glands. |
| C. | Stimulates pituitary to secrete vasopressin. |
| D. | Causes strong uterine contractions during parturition. |
| Answer» E. | |
| 1600. |
A tumor in an endocrine gland caused Jennifer to have weakened bones and unusually high levels of blood calcium. Which of the following was affected? |
| A. | Anterior pituitary |
| B. | Pancreas |
| C. | Adrenal glands |
| D. | Parathyroid glands |
| Answer» E. | |