MCQOPTIONS
Saved Bookmarks
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.
| 14251. |
The roof of the buccal cavity forms: |
| A. | palate |
| B. | gullet |
| C. | hyoid |
| D. | glottis |
| Answer» B. gullet | |
| 14252. |
The carbon-to-nitrogen bond that joins amino acids together is called: |
| A. | double bond |
| B. | peptide bond |
| C. | hydrogen bond |
| D. | glycosidic bond |
| Answer» C. hydrogen bond | |
| 14253. |
Best source of casein is: |
| A. | rice |
| B. | egg |
| C. | milk |
| D. | meat |
| Answer» D. meat | |
| 14254. |
A patient is generally advised specially, to consume more meat, lentils, milk and eggs in diet only when he suffers from: (CBSE 2005; JIPMER 2007) |
| A. | Scurvy |
| B. | Rickets |
| C. | Anaemia |
| D. | Kwashiorkor |
| Answer» E. | |
| 14255. |
Which one of the following amino acids is considered semi-indispensable for human nutrition? |
| A. | Arginine |
| B. | Leucine |
| C. | Aspartic acid |
| D. | Glutamic acid |
| Answer» B. Leucine | |
| 14256. |
Essential amino acids are those which are: |
| A. | taken from food |
| B. | found in proteins |
| C. | synthesized in body |
| D. | needed in vital activities |
| Answer» B. found in proteins | |
| 14257. |
Medium of pancreatic juice remains: |
| A. | neutral |
| B. | alkaline |
| C. | highly acidic |
| D. | slightly acidic |
| Answer» C. highly acidic | |
| 14258. |
Sodium taurocholate aids in: (EAMCET 2000) |
| A. | defecation |
| B. | absorption |
| C. | assimilation |
| D. | emulsification |
| Answer» E. | |
| 14259. |
Bile helps in the digestion of fats because: (PCS 2004) |
| A. | it emulsifies fats |
| B. | it makes the medium alkaline |
| C. | it activates fat digestion enzymes |
| D. | it degrades fats into fatty acids and glycerol |
| Answer» B. it makes the medium alkaline | |
| 14260. |
Digestive juice lacking enzyme but adding to digestion is: |
| A. | bile |
| B. | chyle |
| C. | chyme |
| D. | succus entericus |
| Answer» B. chyle | |
| 14261. |
Which is not the function of HCl in stomach? |
| A. | killing the bacteria ingested with food and drinks |
| B. | breaking down proteins into peptones |
| C. | promoting the formation of pepsin |
| D. | softening fibrous food elements |
| Answer» C. promoting the formation of pepsin | |
| 14262. |
Choose the correct enzyme-substrate pair: |
| A. | Rennin Casein |
| B. | Maltase Lactose |
| C. | Amylase Protein |
| D. | Lipase Carbohydrate |
| Answer» B. Maltase Lactose | |
| 14263. |
Rennin is found in: |
| A. | bile |
| B. | saliva |
| C. | gastric juice |
| D. | pancreatic juice |
| Answer» D. pancreatic juice | |
| 14264. |
Enzyme pepsin acts in: (Orissa JEE 2007) |
| A. | mouth |
| B. | intestine |
| C. | acidic medium in the pancreas |
| D. | acidic medium in the stomach |
| Answer» E. | |
| 14265. |
Digestive process in human being is: (BHU 2002) |
| A. | intracellular |
| B. | extracellular |
| C. | both of these |
| D. | none of these |
| Answer» C. both of these | |
| 14266. |
Pepsinogen is activated by: |
| A. | pepsin |
| B. | trypsin |
| C. | chymotrypsin |
| D. | hydrochloric acid |
| Answer» E. | |
| 14267. |
The pH of stomach ranges between: (Karnataka CET 2001; Uttarakhand PMT 2007; BV Pune 2008) |
| A. | 1.5 to 2.0 |
| B. | 6.8 to 7.2 |
| C. | 7.1 to 8.2 |
| D. | 7.6 to 8.6 |
| Answer» B. 6.8 to 7.2 | |
| 14268. |
1-4 glycosidic bonds are broken when: |
| A. | Lipid is digested by lipase |
| B. | DNA is digested by nucleas |
| C. | Protein is digested by pepsin |
| D. | Starch is digested by amylase |
| Answer» E. | |
| 14269. |
Which one is different from the category of other three? |
| A. | Ptyalin |
| B. | Secretin |
| C. | Gastrin |
| D. | Glucagon |
| Answer» B. Secretin | |
| 14270. |
Ptyalin of saliva acts in: |
| A. | slightly acidic medium |
| B. | slightly alkaline medium |
| C. | neutral medium |
| D. | all types of media |
| Answer» B. slightly alkaline medium | |
| 14271. |
Salivary amylase is also known as: Manipal 2005) |
| A. | ptyalin |
| B. | gastrin |
| C. | glyoxylase |
| D. | pepsin |
| Answer» B. gastrin | |
| 14272. |
Maximum absorption of water occurs in: (JEPMER 2006) |
| A. | colon |
| B. | rectum |
| C. | small intestine |
| D. | large intestine |
| Answer» D. large intestine | |
| 14273. |
Nutrients absorbed by the blood capillaries in intestinal villi first go into: |
| A. | aorta |
| B. | hepatic artery |
| C. | posterior vena cava |
| D. | liver through hepatic portal vein |
| Answer» E. | |
| 14274. |
Match the following and choose the correct combination from the options given: Column I Column II A. A Ptyalin 1. 1 Lipids B. B Pepsin 2. 2 Starch C. C Steapsin 3. 3 DMA D. D Nuclease 4. 4 Proteins (Kerala PMT 2004) |
| A. | A = 1, B = 3, C = 2, D = 4 |
| B. | A = 1, B = 4, C = 3, D = 2 |
| C. | A = 2, B = 4, C = 1, D = 3 |
| D. | A = 2, B = 3, C = 1, D = 4 |
| Answer» D. A = 2, B = 3, C = 1, D = 4 | |
| 14275. |
Some proteolytic enzymes are: (Orissa JEE 2010) |
| A. | amylase, lipase and zymase |
| B. | trypsin, erepsin and pepsin |
| C. | amylopsin, steapsin and ptyalin |
| D. | urease, dehydrogenase and zymase |
| Answer» C. amylopsin, steapsin and ptyalin | |
| 14276. |
Which of the following is correct chronological order for the enzyme activity of some enzymes taking part in protein digestion? (Gujarat CET 2006) |
| A. | Pepsin \[\to \] Trypsin \[\to \] Peptidase |
| B. | Pepsin \[\to \] Peptidase \[\to \] Trypsin |
| C. | Trypsin \[\to \] Pepsin \[\to \] Peptidase |
| D. | Peptidase \[\to \] Trypsin \[\to \] Pepsin |
| Answer» B. Pepsin \[\to \] Peptidase \[\to \] Trypsin | |
| 14277. |
Digestion of carbohydrates, proteins and fats is completed in: |
| A. | liver |
| B. | stomach |
| C. | small intestine |
| D. | large intestine |
| Answer» D. large intestine | |
| 14278. |
Succus entericus is secreted by: (Karnataka CET 2007) |
| A. | Crypts of Lieberkuhn |
| B. | Brunner's gland |
| C. | Both [a] and [b] |
| D. | None of these |
| Answer» D. None of these | |
| 14279. |
Maltase converts: (Orissa JEE 2005; Pb. PMT 2007) |
| A. | maltose to glucose at pH greater than 7.0 |
| B. | maltose to glucose at pH lesser than 7.0 |
| C. | starch to maltose at higher pH than 7.0 |
| D. | maltose to alcohol |
| Answer» B. maltose to glucose at pH lesser than 7.0 | |
| 14280. |
A lubricant, mucin in saliva is made up of: (Pb. PMT 2004) |
| A. | myosin |
| B. | glycoprotein |
| C. | phospholipids |
| D. | polysaccharides |
| Answer» C. phospholipids | |
| 14281. |
Which of these statements about trypsin is true? |
| A. | Trypsin is produced by the crypts of Lieberkuhn |
| B. | Active trypsin is secreted into the pancreatic acini |
| C. | Trypsinogen is converted to trypsin by enterokinase |
| D. | Trypsin is derived from trypsinogen by the digestive action of pepsin |
| Answer» D. Trypsin is derived from trypsinogen by the digestive action of pepsin | |
| 14282. |
In humans, sphincter of Oddi is associated with the opening of: (JKCMEE 2008; Kerala PMT 2010) |
| A. | oesophagus |
| B. | pyloric stomach |
| C. | common hepatic duct |
| D. | hepatopancreatic ampulla |
| Answer» E. | |
| 14283. |
The type of muscle fibre present in the wall of alimentary canal is: (Orissa JEE 2010) |
| A. | smooth |
| B. | striped |
| C. | cardiac |
| D. | both [a] and [b] |
| Answer» B. striped | |
| 14284. |
Arrange the correct sequence of enzyme which act on food in different regions of alimentary canal: (EAMCET 2010) 1. Pepsin 2. Ptyalin 3. Dipeptidase 4. Carboxypeptidase |
| A. | 1 3 2 4 |
| B. | 2 1 4 3 |
| C. | 1 4 3 2 |
| D. | 2 1 3 4 |
| Answer» C. 1 4 3 2 | |
| 14285. |
Essential : non-essential amino acid is: (AMU 2010) |
| A. | lysine : leucine |
| B. | methionine : threonine |
| C. | valine : tyrosine |
| D. | alanine : cysteine |
| Answer» D. alanine : cysteine | |
| 14286. |
Calorie is the unit of: (DUMET 2009) |
| A. | light |
| B. | heat |
| C. | sound |
| D. | temperature |
| Answer» C. sound | |
| 14287. |
Dentition in man is: (Kerala PMT 2009; Orissa JEE 2010) |
| A. | thecodont, heterodont and polyphyodont |
| B. | thecodont homodont and polyphyodont |
| C. | thecodont, heterodont and diphyodont |
| D. | acrodont, heterodont and diphyodont |
| Answer» D. acrodont, heterodont and diphyodont | |
| 14288. |
Which of the following cannot be isolated from plants? (VMMC-Safdarjung 2008) |
| A. | Niacin |
| B. | Vitamin C |
| C. | Riboflavin |
| D. | Vitamin \[{{B}_{12}}\] |
| Answer» E. | |
| 14289. |
Which of the following are required in minimum amount by human? (DPMT 2006) |
| A. | Nitrogen, oxygen, zinc, fluorine |
| B. | Iron, iodine, manganese, zinc, hydrogen |
| C. | Iron, iodine, carbon, manganese, copper, |
| D. | Iron, iodine, manganese, copper, zinc, fluorine |
| Answer» E. | |
| 14290. |
Which is not used up in human body? (DPMT 2006; Har. PMT 2006) |
| A. | Zinc |
| B. | Barium |
| C. | Calcium |
| D. | Phosphorus |
| Answer» C. Calcium | |
| 14291. |
Zn, Mo, Fe, Cu are: (DPMT 2007) |
| A. | trace elements |
| B. | nonessential elements |
| C. | macronutrients |
| D. | none of these |
| Answer» B. nonessential elements | |
| 14292. |
Which of the following enzymes digests protein in stomach? [AMU] |
| A. | Trypsin |
| B. | Pepsin |
| C. | Erepsin |
| D. | None of these |
| Answer» C. Erepsin | |
| 14293. |
Poison glands of snake are modified [MHT CET] |
| A. | sebaceous glands |
| B. | ceruminous glands |
| C. | salivary glands |
| D. | endocrine glands |
| Answer» D. endocrine glands | |
| 14294. |
Assertion [A]: Thick layers of muscles are present in the wah of alimentary canal. Reason [R]: These muscles help in the mixing of food materials with the enzymes coming from different glands in the alimentary canal. (AIIMS 2007) |
| A. | If both [A] and [R] are true and [R] is the correct explanation of the [A] |
| B. | If both [A] and [R] are true but the [R] is not the correct explanation of [A] |
| C. | If [A] is true, but [R] is false |
| D. | If both [A] and [R] are false |
| Answer» B. If both [A] and [R] are true but the [R] is not the correct explanation of [A] | |
| 14295. |
A young infant may be feeding entirely on mother's milk, which is white in colour but the stools, which theinfant passes out is quite yellowish. This yellow colouris due to [CBSE AIPMT] |
| A. | intestinal juice |
| B. | bile pigments passed through bile juice |
| C. | undigested milk protein casein |
| D. | pancreatic juice poured into duodenum |
| Answer» C. undigested milk protein casein | |
| 14296. |
In colon, constrictions of its wall form a series of small pouches called: |
| A. | plicae |
| B. | crypts |
| C. | haustra |
| D. | taeniae |
| Answer» D. taeniae | |
| 14297. |
Three hormones control the metamorphosis of a caterpillar into a butterfly. Which statement about these hormones is false? |
| A. | Molting hormone promotes the changes in the epidermis (external skeleton). |
| B. | Prothoracicotropic hormone stimulates the prothoracic gland to release juvenile hormone. |
| C. | Levels of juvenile hormone control the time at which an insect turns into an adult. |
| D. | Molting hormone promotes the development of imaginal disks. |
| Answer» C. Levels of juvenile hormone control the time at which an insect turns into an adult. | |
| 14298. |
Which one of the following hormone stimulates the "let-down" (release) of milk from the mother's breasts when the baby is sucking? |
| A. | Progesterone |
| B. | Oxytocin |
| C. | Prolactin |
| D. | Relaxin |
| Answer» C. Prolactin | |
| 14299. |
A hormone that acts upon the renal tubule and blood capillaries is: |
| A. | Glucagon |
| B. | Aldosterone |
| C. | Vasopressin |
| D. | Glucocorticoids |
| Answer» D. Glucocorticoids | |
| 14300. |
Match the following columns. Column-I Column-II A. Protein hormones I. Epinephrine B. Steroid hormones II. Testosterone, progesterone C. Iodothyronies III. Thyroid hormones D. Amino acid IV. Insulin and derivatives glucagon hormones |
| A. | A-I; B-II; C-III; D-IV |
| B. | A-IV; B-III; C-II; D-I |
| C. | A-IV; B-II; C-III; D-I |
| D. | A-IV; B-II; C-I; D-III |
| Answer» D. A-IV; B-II; C-I; D-III | |