Explore topic-wise MCQs in NEET.

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.

4401.

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                         
4402.

If for some reason the parietal cells of the gut epithelium become partially non-functional, what is likely to happen?                                                                                                                     (CBSE 2010)

A. The pancreatic enzymes and specially the trypsin and lipase will not work efficiently
B. The pH of stomach will fall abruptly
C. Steapsin will be more effective
D. Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones
Answer» E.
4403.

Jaundice is a disorder of:                                                                                         (CBSE 2010)

A. skin and eyes                 
B. excretory system
C. digestive system             
D. circulatory system
Answer» D. circulatory system
4404.

If for some reason our goblet cells are non-functional, this will adversely affect:                      (CBSE 2010)

A. maturation of sperms
B. production of somatostatin
C. secretion of sebum from the sebaceous glands
D. smooth movement of food down the intestine
Answer» E.
4405.

Carrier ions like \[N{{a}^{+}}\] facilitate the absorption of substances like:                               (CBSE 2010)

A. glucose and fatty acids
B. fatty acids and glycerol
C. amino acids and glucose
D. fructose and some amino acids
Answer» E.
4406.

Which of the following vitamins has some physiological effects similar to those of parathormone? (DUMET 2010)

A. Vitamin A             
B. Vitamin D
C. Vitamin C                     
D. Vitamin B
Answer» C. Vitamin C                     
4407.

Ant hemorrhage vitamin is:                                                                      (MPPET Pharmacy 2010)

A. K                  
B. A
C. B                     
D. E
Answer» B. A
4408.

Which one of the following is not a micronutrient?                                                               (CBSE 2010)

A. Zinc                
B. Boron
C. Molybdenum                 
D. Magnesium
Answer» E.
4409.

Essential : non-essential amino acid is:                                                                               (AMU 2010)

A. lysine : leucine               
B. methionine : threonine
C. valine : tyrosine        
D. alanine : cysteine
Answer» D. alanine : cysteine
4410.

Salivary amylase, a digestive enzyme, begins digestion of:                            (Orissa JEE 2009; MPPMT 2010)

A. fats                              
B. proteins
C. carbohydrates                
D. all of these
Answer» D. all of these
4411.

The number of essential amino acids in adult human is:                                           (Orissa JEE 2009)

A. nine                 
B. eight
C. four                              
D. seven
Answer» C. four                              
4412.

Peristalsis is:

A. feeding due to gravity
B. the act of swallowing
C. secretion of digestive juices
D. an involuntary muscular contraction and relaxation of alimentary canal
Answer» E.
4413.

Compare the statements A and B. Statement A: Blood sugar level falls rapidly after hepatectomy. Statement B: The glycogen of the liver is the principal source of blood sugar. Select the correct description: (Karnataka CET 2009)

A. Statement A is wrong and B is correct
B. Both the statements A and B are correct and B is not the reason for A
C. Both the statements A and B are correct and B is the reason for A
D. Statement A is correct and B is wrong
Answer» B. Both the statements A and B are correct and B is not the reason for A
4414.

The conversion of dangerous nitrogenous waste into less toxic excretory matter is carried out in:    (JKCMEE 2009)

A. liver                             
B. skin
C. blood                           
D. kidney
Answer» B. skin
4415.

Liver necrosis and muscular dystrophy are caused by the lack of this trace element:                 (AMU 2009)

A. Zinc                             
B. Arsenic
C. Selenium                      
D. Molybdenum
Answer» D. Molybdenum
4416.

Calorie is the unit of:                                                                                                                   (DUMET 2009)

A. light                 
B. heat
C. sound                           
D. temperature
Answer» C. sound                           
4417.

Which one is not true about vitamins?                                                                               (JKCMEE 2009)

A. Vitamins are organic catalysts
B. Vitamins act as source of energy
C. Vitamins are indispensable for life
D. Tocopherol is anti-sterility vitamin
Answer» C. Vitamins are indispensable for life
4418.

The malnutrition disease in man is:                                                                                    (JKCMEE 2009)

A. Pot belly syndrome    
B. Edward's syndrome
C. Cri du chat syndrome 
D. Klinefelter's syndrome
Answer» B. Edward's syndrome
4419.

Inadequate protein intake leads to Kwashiorkor. The subsequent oedema is most closely related to inadequate synthesis of which protein?                                                                         (DUMET2009)

A. Insulin                          
B. Albumin
C. Glucagon                      
D. Gamma globulin
Answer» C. Glucagon                      
4420.

Which one of the following statements is true regarding digestion and absorption of food in humans?                                                                                                                                          (CBSE 2009)

A. Oxyntic cells in our stomach secrete the pro-enzyme pepsinogen
B. About 60% of starch is hydrolysed by salivary amylase in our mouth
C. Fructose and ammo acids are absorbed through intestinal mucosa with the help of carrier ions like \[N{{a}^{+}}\]
D. Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries
Answer» D. Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries
4421.

A young infant may be feeding entirely on mother's milk which is white in colour but the stools which the infant passes out is quite yellowish. What is this yellow colour due to?                                                   (CBSE 2009)

A. Intestinal juice
B. Undigested milk protein casein
C. Bile pigments passed through bile juice
D. Pancreatic juice poured into duodenum
Answer» D. Pancreatic juice poured into duodenum
4422.

The wave like contraction of the smooth muscles of digestive tract is called: (CMC, Vellore 2003)

A. peristalsis                      
B. deglutition
C. fibrillation                     
D. mastication
Answer» B. deglutition
4423.

Which one of the following pairs of food components in humans reaches the stomach totally undigested?                                                                                                                                               (CBSE 2009)

A. Starch and fat               
B. Fat and cellulose
C. Protein and starch          
D. Starch and cellulose
Answer» C. Protein and starch          
4424.

The type of nutrition where organisms engulf food materials is:                           (Kerala PMT 2009)

A. holozoic                        
B. parasitic
C. saprozoic                      
D. saprophytic
E.  autotrophic
Answer» B. parasitic
4425.

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
E.  acrodont and homodont
Answer» D. acrodont, heterodont and diphyodont
4426.

Which of the following hormone helps in secretion of HCl from stomach?                     (WB-JEE 2008)

A. renin                            
B. gastrin
C. secretin                         
D. somatomedin
Answer» C. secretin                         
4427.

Which of the following is correct match for column A and column B? Column A Column B A. Retinol 1. Inhibits oxidation of unsaturated fatty acids B Tocopherol 2. Absorption of \[C{{a}^{2+}}\] C. Calciferol 3. Essential for maintenance of epithelial tissue D. Menadione 4. Helps in clotting of blood E. Ascorbic acid 5. Require for amino acid metabolism Answer codes:              (Gujarat CET 2008)

A. A = 3, B = 2, C = 4, D = 5, E = 1
B. A = 2, B = 3, C = 1, D = 4, E = 5
C. A = 3, B = 1, C = 2, D = 4, E = 5
D. A = 4, B = 1, C = 2, D = 3, E = 5
Answer» D. A = 4, B = 1, C = 2, D = 3, E = 5
4428.

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.
4429.

Keratinization of the skin is prevented by:                                       (BV Pune 2008)

A. vitamin A                     
B. vitamin B
C. vitamin C                     
D. vitamin D
Answer» B. vitamin B
4430.

Examination of blood of a person suspected of having anaemia, shows large, immature, nucleated erythrocytes without haemoglobin. Supplementing his diet with which of the following is likely to alleviate his symptoms? (AFMC 2008)

A. Thiamine                      
B. Riboflavin
C. Iron compounds      
D. Folic acid and cobalamin
Answer» D. Folic acid and cobalamin
4431.

Which of the following is important for muscle contraction and nerve impulse transmission?          (CPMT 2008)

A. \[C{{a}^{2+}}\]ions             
B. \[M{{g}^{2+}}\] ions
C. both [a] and [b]       
D. \[F{{e}^{2+}}\] ions
Answer» B. \[M{{g}^{2+}}\] ions
4432.

Muscular contraction of alimentary canal is known as:

A. digestion                                   
B. peristalsis
C. absorption                     
D. circulation
Answer» C. absorption                     
4433.

Shells of molluscs are used for preparing ointments because they are rich in

A. Zinc
B. Iodine
C. Sodium
D. a and b both
Answer» E.
4434.

Which pearl is rare

A. White
B. Cream
C. Pink red
D. Rainbow colour
Answer» E.
4435.

Which one of the following molluscan groups is primarily used in the pearl formation [MP PMT 1994]

A. Monopalacophorans
B. Cephalopods
C. Gastropods
D. Pelecypods
Answer» E.
4436.

Pearl is produced by the marine molluscs such as   [MP PMT 1994]

A.   Pearl oyster and mussel
B. Pearl oyster
C. Marine mussel
D. Fresh water mussel and other bivalvia
Answer» B. Pearl oyster
4437.

Who stands first in the world for pearl production

A. India
B. China
C. Korea
D. Japan
Answer» E.
4438.

The production of pearl artificially is known as 

A. Pearl production
B. Pearl culture
C. Pearl manufacture
D. a and b both
Answer» C. Pearl manufacture
4439.

The composition of pearl is very much similar to that of

A. Mantle layer
B. Nacreous layer only
C. Prismatic layer only
D. Both b and c
Answer» C. Prismatic layer only
4440.

Which of the following is detrimental to pearl industry [AFMC 1997]

A. Cliona
B. Cheloina
C. Pinctada
D. Euspongia
Answer» D. Euspongia
4441.

Whose secretion forms the pearl [MP PMT 1999]

A. Prismatic layer
B. Columnar epithelial cells of mantle
C. Ciliated epithelial cells of mantle
D. Connective tissue of mantle
Answer» C. Ciliated epithelial cells of mantle
4442.

A pearl oyster secrets pearls to [MP PMT 1997]

A. Regenerate injured parts
B. Protect itself against invading parasite
C. Harden its mantle cavity
D. Isolate damaged tissues of the body
Answer» C. Harden its mantle cavity
4443.

Natural pearl is formed by

A. A bivalve
B. Prawn
C. Crayfish
D. Fish
Answer» B. Prawn
4444.

The most valuable kind of pearl comes from marine pearl oyster of Eastern Asia, it is

A. Melegrina
B. Ostrea virginiana
C. Pinctada
D. Mytilus
Answer» D. Mytilus
4445.

Pearls are produced in an oyster around the

A. Tears of sea mermaids falling into the oyster
B. First drops of rains falling into the oyster in a particular month
C. Eggs oyster which fails to leave its body
D. Some external particles becoming embedded in the skin of oyster
Answer» E.
4446.

The pearl bed which produces best quality is known as

A. Lingha pearl
B. Muktaphal
C. Kusum
D. None of the above
Answer» B. Muktaphal
4447.

Parthenogenesis is a term of [Orissa JEE 2005]

A. Sexual reproduction
B. Asexual reproduction
C. Budding
D. Regeneration
Answer» B. Asexual reproduction
4448.

Which of the following is parthenocarpic fruits [CPMT 1996]

A. Orange
B. Papaya
C. Pomegranate
D. Apple
Answer» C. Pomegranate
4449.

The parthenogenesis refers to a fruit [DPMT 1987, 93; NCERT 1981, 84; CPMT 1996]

A. With seeds after pollination
B. Without seed after pollination
C. With viable seed after fertilization
D. Seedless without fertilization
Answer» E.
4450.

Seedless fruits in Vitis are formed due to [EAMCET 1995; MHCET 2000]

A. Sterility
B. Double fertilization
C. Syngamy
D. Parthenocarpy
Answer» E.