MCQOPTIONS
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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.
| 3401. |
Which of the following enzyme digest protein in stomach? (Wardha 2006; MPPMT 2006; BV Pune 2007; Manipal 2008; BHU 2008; DPMT 2008) |
| A. | Pepsin |
| B. | Trypsin |
| C. | Erepsin |
| D. | None of these |
| Answer» B. Trypsin | |
| 3402. |
Find out the correctly matched pair: (Kerala PMT 2007) |
| A. | HCl Goblet cells |
| B. | Ptyalin Acinar cells |
| C. | Mucus Oxyntic cells |
| D. | Pepsinogen Zymogenic cell |
| E. | Pancreatic juice Salivary glands |
| Answer» E. Pancreatic juice Salivary glands | |
| 3403. |
Which two enzymes are present in human gastric juice? |
| A. | HCl and pepsin |
| B. | Pepsin and rennin |
| C. | Trypsin and erepsin |
| D. | Trypsin and rennin |
| Answer» C. Trypsin and erepsin | |
| 3404. |
Zymogen cells of gastric glands secrete: |
| A. | pepsin |
| B. | trypsin |
| C. | pepsinogen |
| D. | chymotrypsin |
| Answer» D. chymotrypsin | |
| 3405. |
In hydrolysis, a small amount of energy is released as: |
| A. | heat |
| B. | light |
| C. | kinetic energy |
| D. | potential energy |
| Answer» B. light | |
| 3406. |
Which of the following digestive juices have the minimum pH? (AIIMS 2002) |
| A. | Bile |
| B. | Saliva |
| C. | Gastric juice |
| D. | Pancreatic juice |
| Answer» D. Pancreatic juice | |
| 3407. |
If pH of stomach is made 7, which component of food would be affected? |
| A. | Fat |
| B. | Starch |
| C. | Protein |
| D. | Sucrose |
| Answer» D. Sucrose | |
| 3408. |
Gastric juice has a pH of about: (Orissa JEE 2003, 08; MPPMT 2010) |
| A. | 1 |
| B. | 2 |
| C. | 5 |
| D. | 6 |
| Answer» C. 5 | |
| 3409. |
Digestion of protein in starts from: |
| A. | mouth |
| B. | stomach |
| C. | duodenum |
| D. | oesophagus |
| Answer» C. duodenum | |
| 3410. |
Stomach is the site of digestion of mainly: |
| A. | fats |
| B. | proteins |
| C. | carbohydrate |
| D. | all of these |
| Answer» C. carbohydrate | |
| 3411. |
A rabbit eats a lot of gram. Then its digestion starts in: (RPMT 2001) |
| A. | ileum |
| B. | stomach |
| C. | mouth |
| D. | duodenum |
| Answer» C. mouth | |
| 3412. |
Digestion of protein takes place in: |
| A. | intestine and rectum |
| B. | stomach and duodenum |
| C. | small and large intestine |
| D. | stomach and oesophagus |
| Answer» C. small and large intestine | |
| 3413. |
Stomach is the site of digestion mainly of: (WB-JEE 2006) |
| A. | fats |
| B. | proteins |
| C. | minerals |
| D. | carbohydrates |
| Answer» C. minerals | |
| 3414. |
Protein digestion is necessary because proteins: |
| A. | are large molecules |
| B. | are complex molecules |
| C. | cannot be absorbed as such |
| D. | have a number of amino acids |
| Answer» E. | |
| 3415. |
All digestive enzymes are: |
| A. | ligases |
| B. | oxidases |
| C. | hydrolases |
| D. | transferases |
| Answer» D. transferases | |
| 3416. |
Protein digestion is carried out by: |
| A. | proteolytic enzymes |
| B. | proteoses |
| C. | peptides |
| D. | all of these |
| Answer» E. | |
| 3417. |
Which of these statements about starch digestion is false? |
| A. | It begins in the mouth |
| B. | It occurs in the stomach |
| C. | It requires the action of pancreatic amylase |
| D. | Its digestion is completed in the small intestine |
| Answer» C. It requires the action of pancreatic amylase | |
| 3418. |
An enzyme which brings about conversion of starch into maltose is: (PCS 2002) |
| A. | invertase |
| B. | diastase |
| C. | catalase |
| D. | maltase |
| Answer» C. catalase | |
| 3419. |
Carbohydrates ingested in the diet are hydrolysed by the enzyme: (WB-JEE 2006) |
| A. | pepsin |
| B. | cellulase |
| C. | a-amylase |
| D. | glycosidase |
| Answer» D. glycosidase | |
| 3420. |
Substrate of enzyme amylase is: |
| A. | fat |
| B. | starch |
| C. | protein |
| D. | sugarcane |
| Answer» C. protein | |
| 3421. |
Ptyalin cannot work in stomach because it is: |
| A. | inactivated by HCl |
| B. | inactivated by rennin |
| C. | inactivated by pepsin |
| D. | carbohydrate digesting |
| Answer» B. inactivated by rennin | |
| 3422. |
Ptyalin acts upon: |
| A. | fat |
| B. | lipid |
| C. | starch |
| D. | protein |
| Answer» D. protein | |
| 3423. |
pH of saliva is: (Orissa JEE 2006) |
| A. | 7 |
| B. | 8 |
| C. | 6.8 |
| D. | 9.5 |
| Answer» D. 9.5 | |
| 3424. |
The normal brown-red colour of faeces is due to the presence of: |
| A. | bilirubin |
| B. | biliverdin |
| C. | stercobilin |
| D. | urobilinogen |
| Answer» E. | |
| 3425. |
Salivary amylase is also known as: Manipal 2005) |
| A. | ptyalin |
| B. | gastrin |
| C. | glyoxylase |
| D. | pepsin |
| Answer» B. gastrin | |
| 3426. |
Yellow colour of faeces is due to: (Orissa JEE 2006) |
| A. | bile secretion |
| B. | green colour of bile juice |
| C. | excessive diet of turmeric |
| D. | degradation product of haemoglobin |
| Answer» E. | |
| 3427. |
Absorption of salt and water is the principal function of which region of GI tract? |
| A. | Jejunum |
| B. | Stomach |
| C. | Duodenum |
| D. | Large intestine |
| Answer» E. | |
| 3428. |
Which of the following is the primary absorptive process in the large intestine? |
| A. | Active secretion of chloride from the blood |
| B. | Active absorption of bicarbonate into the blood |
| C. | Active transport of sodium from the lumen to the blood |
| D. | Active transport of potassium from the lumen to the blood |
| Answer» D. Active transport of potassium from the lumen to the blood | |
| 3429. |
Micelles increase the absorption of fat by: |
| A. | facilitating absorption into the lacteals |
| B. | metabolizing triglyceride to monoglyceride |
| C. | keeping the insoluble products of fat digestion in small aggregates |
| D. | promoting direct absorption across the intestinal epithelium |
| Answer» D. promoting direct absorption across the intestinal epithelium | |
| 3430. |
Maximum absorption of water occurs in: (JEPMER 2006) |
| A. | colon |
| B. | rectum |
| C. | small intestine |
| D. | large intestine |
| Answer» D. large intestine | |
| 3431. |
Fats absorbed into lacteals as chylomicrons are: (AMU 2003) |
| A. | glycerol |
| B. | fatty acids |
| C. | triglycerides |
| D. | monoglycerides |
| Answer» D. monoglycerides | |
| 3432. |
Chylomicrons are concerned with: (CPMT 2006) |
| A. | digestion of fats |
| B. | absorption of fats |
| C. | digestion of proteins |
| D. | absorption of proteins |
| Answer» C. digestion of proteins | |
| 3433. |
The fats absorbed from the gut are transported to the blood in the form of: (Kerala PMT 2001) |
| A. | micelles |
| B. | liposomes |
| C. | chylomicrons |
| D. | chemomicrons |
| Answer» D. chemomicrons | |
| 3434. |
Fatty acids and glycerol are first absorbed by: |
| A. | villi |
| B. | lacteals |
| C. | blood capillaries |
| D. | hepatic portal vein |
| Answer» C. blood capillaries | |
| 3435. |
Match the pair: |
| A. | Adrenal cortex Vasopressin |
| B. | Salivary glands Amylase |
| C. | Pituitary glands Thyroxine |
| D. | Islets of Langerhans Secretin |
| Answer» C. Pituitary glands Thyroxine | |
| 3436. |
Fatty acids and monoglycerides absorbed from mammalian intestine first reach: |
| A. | hepatic vein |
| B. | lymph vessels |
| C. | hepatic portal vein |
| D. | anterior mesenteric vein |
| Answer» C. hepatic portal vein | |
| 3437. |
The main function of lacteals in the villi of human small intestine is the absorption of: (Karnataka CET 2005, 06) |
| A. | glucose and vitamins |
| B. | fatty acids and glycerol |
| C. | water and mineral salts |
| D. | amino acids and glucose |
| Answer» C. water and mineral salts | |
| 3438. |
The absorption of glycerol, fatty acids and monoglycerides takes place by the: |
| A. | colon |
| B. | wall of the stomach |
| C. | capillaries within the villi |
| D. | lymph vessels within the villi |
| Answer» E. | |
| 3439. |
Fats are absorbed after: |
| A. | as such |
| B. | digestion |
| C. | hydrolysis |
| D. | emulsification |
| Answer» C. hydrolysis | |
| 3440. |
Glucose and amino acids are absorbed in the intestine by: (JIPME R2002) |
| A. | osmosis |
| B. | active transport |
| C. | passive transport |
| D. | selective absorption |
| Answer» C. passive transport | |
| 3441. |
Which of the following sugars is absorbed from the small intestine by facilitated diffusion? |
| A. | Glucose |
| B. | Sucrose |
| C. | Lactose |
| D. | Fructose |
| Answer» E. | |
| 3442. |
Read the statements [A] and [B]; (A): The human small intestine is the longest portion in the alimentary canal. (B): Absorption of digested food requires a very large surface area. Identify the correct choice on the two statements: (Karnataka CET 2005) |
| A. | Statement [A] is correct, [B] is wrong |
| B. | Statement [A] and [B] are both correct |
| C. | Both the statements are wrong |
| D. | Statement [B] is correct, [A] is wrong |
| Answer» C. Both the statements are wrong | |
| 3443. |
In which of the following, putrefying bacteria are present? (BHU 2006; Wardha 2008) |
| A. | Liver |
| B. | Colon |
| C. | Stomach |
| D. | Intestine |
| Answer» C. Stomach | |
| 3444. |
Saliva contains the enzyme: (CPMT 2003) |
| A. | amylase |
| B. | maltase |
| C. | invertase |
| D. | sucrose |
| Answer» B. maltase | |
| 3445. |
What is common among amylase, rennin and trypsin? (CPMT 2000) |
| A. | These are all proteins |
| B. | These act at a pH lower than 7 |
| C. | These are produced in stomach |
| D. | These are all proteolytic enzymes |
| Answer» B. These act at a pH lower than 7 | |
| 3446. |
Statement common to amylase, rennin and trypsin: |
| A. | These are all proteins |
| B. | These are produced in stomach |
| C. | These act at a pH lower than 7 |
| D. | These are all proteolytic enzymes |
| Answer» B. These are produced in stomach | |
| 3447. |
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 | |
| 3448. |
Which group contains biocatalysts? |
| A. | Erepsin, amylase, rennin |
| B. | Rhodopsin, pepsin, steapsin |
| C. | Myosin, oxytocin, adrenaline |
| D. | Glucose, amino acids, fatty acids |
| Answer» B. Rhodopsin, pepsin, steapsin | |
| 3449. |
Man cannot digest cellulose, whereas cow and other herbivores can because: |
| A. | they have symbiotic microbes in their alimentary canal which digest cellulose |
| B. | they have enzyme cellulase in their stomach |
| C. | they masticate it well by chewing with teeth |
| D. | none of the above |
| Answer» B. they have enzyme cellulase in their stomach | |
| 3450. |
The end products of fat digestion are: |
| A. | glucose |
| B. | alkaloids |
| C. | fatty acids |
| D. | amino acids |
| Answer» D. amino acids | |